Aviation aluminum alloy ball cutter for precision machining

Abstract

The utility model relates to the technical field of machining tools, and discloses an aviation aluminum alloy ball cutter for precision machining, which comprises a cutter head and a connecting mechanism, the lower end of the cutter head is provided with the connecting mechanism, the connecting mechanism comprises a bolt and a mounting block, and the middle of the lower end of the cutter head is fixedly connected with a connecting block. Clamping grooves are formed in the front end and the rear end of the upper end of the mounting block, supporting rods are fixedly connected to the front end and the rear end of the lower end of the tool bit, clamping blocks are fixedly connected to the lower ends of the supporting rods, and the middle of the outer wall of a bolt rod body is in threaded connection with a connecting block. According to the utility model, the connecting block fixedly connected with the lower end of the tool bit in the connecting mechanism is in sliding connection with the sliding groove formed in the mounting block, the clamping block and the clamping groove are clamped and positioned, and the bolt is in threaded connection with the connecting block for fixation, so that a worker can conveniently detach and replace the tool bit independently, and the resource waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing cutter technical field especially, it is a kind of for precision machining's aviation aluminium alloy ball cutter. BACKGROUND

[0002] Aluminum alloy is a kind of metal alloy, mainly by aluminum and other one or more elements, such as copper, magnesium, silicon, zinc etc., the low density of aluminum alloy makes it very light, and by alloying and heat treatment, give aluminum alloy higher strength, and aviation aluminum alloy has better corrosion resistance, toughness and thermal stability compared to general aluminum alloy, more in the various components of aircraft, and because aviation parts often have complex curved surface shape, so adopt ball cutter with spherical cutter head to carry out precision machining.

[0003] However, because aviation aluminum alloy has higher strength, aviation aluminum alloy wears the ball cutter head more strongly when processing, and the existing aviation aluminum alloy ball cutter on the market mostly adopts integrated design, needs staff to replace the ball cutter as a whole, causes the waste of resources, increases the processing cost of aviation aluminum alloy.

[0004] Therefore, the person skilled in the art provides an aviation aluminum alloy ball cutter for precision machining to solve the problems raised in the background art. SUMMARY

[0005] The utility model discloses a kind of aviation aluminum alloy ball cutters for precision machining to solve the problems existing in prior art, and the connecting block in connecting mechanism is slidably connected with sliding groove, is positioned using clamping block and clamping groove, is fixed using bolt and connecting block screw connection, it is convenient for the replacement of cutter head.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] An aviation aluminum alloy ball cutter for precision machining, including cutter head and connecting mechanism, the lower end of the cutter head is provided with connecting mechanism the connecting mechanism includes bolt and mounting block, the middle part of the lower end of the cutter head is fixedly connected with connecting block, the front end and rear end of the upper end of the mounting block are both provided with clamping groove, the front end and rear end of the lower end of the cutter head are both fixedly connected with support rod, the lower end of the support rod is all fixedly connected with clamping block, the middle part of the outer wall of bolt stem is screw-connected with connecting block;

[0008] Through the above technical scheme, the connecting block fixedly connected with the lower end of the cutter head in connecting mechanism is slidably connected with the sliding groove opened in the mounting block, is positioned using clamping block and clamping groove, is fixed using bolt and connecting block screw connection, so that staff can conveniently replace cutter head alone.

[0009] Further, the cutter head is made of hard alloy with diamond coating attached to the surface, and three chip grooves are formed on the outer wall of the cutter head.

[0010] By the above technical scheme, the diamond coating attached to the surface of the hard alloy cutter head improves the wear resistance of the cutter head, reduces the wear rate of the cutter head when in contact with high-strength aviation aluminum alloy, and prolongs the service life of the ball cutter head.

[0011] Further, the support rod is slidably connected with the clamping groove, and the clamping block is clampedly connected with the clamping groove.

[0012] By the above technical scheme, when the connecting block is inserted into the cutter sliding groove by the worker, the clamping block slides into the clamping groove after the rotating cutter head, and the clamping block is clampedly connected with the clamping groove, so that the cutter head is hung on the mounting block and will not fall off, and the threaded hole on the connecting block is aligned with the through hole on the mounting block, which facilitates the worker to screw in the bolt to fix the connecting block.

[0013] Further, a sliding groove is formed in the middle of the upper end of the mounting block, and the connecting block is slidably connected with the sliding groove.

[0014] By the above technical scheme, the sliding groove formed in the upper end of the mounting block facilitates the sliding of the connecting block fixedly connected to the lower end of the cutter head to the mounting block, so that there is an overlapping part between the connecting block and the mounting block, which makes it possible to fix the cutter head by using the bolt and the nut.

[0015] Further, through holes are formed in the outer walls on both sides of the mounting block, and the bolt penetrates through the mounting block to the outside of the through hole on both sides.

[0016] By the above technical scheme, the through holes formed on both sides of the mounting block provide space for the installation of the bolt and the nut, and since the bolt and the nut do not protrude outside the mounting block, the problem that the bolt and the nut exposed outside the mounting block interfere with the machining of the aviation aluminum alloy by the rotating ball cutter is avoided.

[0017] Further, a nut is threadedly connected to the other side of the outer wall of the bolt shank, and a cutter rod is fixedly connected to the lower end of the mounting block.

[0018] By the above technical scheme, the bolt is threadedly connected with the connecting block, and the nut is threadedly connected with the bolt, so that under the high-speed rotation of the cutter head, the bolt can stably fix the connecting block on the mounting block under the action of the nut, preventing the bolt from loosening, improving the stability of the cutter head, preventing the cutter head from falling off the mounting block, and allowing the ball cutter to be inserted into the main shaft hole of the machine tool and rotated under the driving of the machine tool.

[0019] The utility model has the advantages of the following:

[0020] The utility model discloses a kind of aviation aluminum alloy ball knives for precision machining, sliding connection is carried out in the connecting block fixedly connected in the lower end of tool head in connecting mechanism and the sliding slot opened in mounting block, using the positioning of clamping block and clamping groove, fixed by cooperating bolt and the threaded connection of connecting block, so that staff can conveniently separately dismount tool head, without replacing ball knife as a whole, reduce resource waste, reduce the production and processing cost of aviation aluminum alloy. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the main body structure schematic diagram of a kind of aviation aluminum alloy ball knives for precision machining proposed in the utility model;

[0022] Figure 2 It is the explosion drawing of a kind of aviation aluminum alloy ball knives for precision machining proposed in the utility model;

[0023] Figure 3 It is the side sectional view of a kind of aviation aluminum alloy ball knives for precision machining proposed in the utility model;

[0024] Figure 4 It is the axial sectional view of mounting block of a kind of aviation aluminum alloy ball knives for precision machining proposed in the utility model;

[0025] Figure 5 It is Figure 2 Enlarged view of A in middle;

[0026] Figure 6 It is Figure 3 Enlarged view of B in middle.

[0027] Legend:

[0028] 1, tool bar;2, connecting mechanism;201, mounting block;202, through-hole;203, connecting block;204, clamping groove;205, support rod;206, clamping block;207, bolt;208, nut;209, sliding slot;3, tool head;4, chip removal groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Refer toFigure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and 6 A specific embodiment of the utility model provides:

[0031] A kind of aviation aluminum alloy ball cutter for precision machining, including tool bit 3 and connecting mechanism 2, tool bit 3 lower end is provided with connecting mechanism 2 connecting mechanism 2 includes bolt 207 and mounting block 201, the middle part of tool bit 3 lower end is fixedly connected with connecting block 203, the front end and rear end of mounting block 201 upper end are all provided with clamping slot 204, the front end and rear end of tool bit 3 lower end are all fixedly connected with supporting rod 205, the lower end of supporting rod 205 is all fixedly connected with clamping block 206, the middle part of bolt 207 stem outer wall is threadedly connected with connecting block 203.

[0032] By connecting mechanism 2 in the connecting block 203 of tool bit 3 lower end fixed connection and the sliding slot 209 of mounting block 201 upper end opening, utilize clamping block 206 and clamping slot 204 clamping positioning, cooperate bolt 207 and connecting block 203 thread connection and be fixed, so that staff can conveniently tool bit 3 is separately taken down, need not replace ball cutter as a whole, reduce the resource waste, reduce the production and processing cost of aviation aluminum alloy.

[0033] The cutter head 3 is made of hard alloy with diamond coating on the surface, and three chip grooves 4 are arranged on the outer wall of the cutter head 3. The diamond coating on the surface of the hard alloy cutter head 3 improves the wear resistance of the cutter head 3, reduces the wear rate of the cutter head 3 when in contact with high-strength aluminum alloy, and prolongs the service life of the cutter head 3. The three chip grooves 4 on the cutter head 3 can discharge the aluminum alloy waste chips cut during the ball cutter machining from the cutout, avoiding accumulation and affecting machining. The support rod 205 is slidingly connected with the clamping groove 204, and the clamping block 206 is clamped and connected with the clamping groove 204. When the connecting block 203 is inserted into the cutter sliding groove 209 by the worker, the clamping block 206 slides into the clamping groove 204 along with the support rod 205 after rotating the cutter head 3, and the clamping block 206 is clamped and connected with the clamping groove 204, so that the cutter head 3 is hung on the mounting block 201 and will not fall off. The threaded hole on the connecting block 203 is aligned with the through hole 202 on the mounting block 201, which facilitates the worker to screw in the bolt 207 to fix the connecting block 203. The middle part of the upper end of the mounting block 201 is provided with a sliding groove 209, and the connecting block 203 is slidingly connected with the sliding groove 209. The sliding groove 209 provided on the upper end of the mounting block 201 facilitates the sliding of the connecting block 203 fixedly connected to the lower end of the cutter head 3 to the mounting block 201, so that there is an overlapping part between the connecting block 203 and the mounting block 201, which provides the possibility of fixing the cutter head 3 by the bolt 207 and the nut 208. The through holes 202 are arranged on the outer walls of the two sides of the mounting block 201, and the two sides of the bolt 207 penetrate through the mounting block 201 to the outside of the through holes 202. The through holes 202 provided on the two sides of the mounting block 201 provide space for installing the bolt 207 and the nut 208, and since the bolt 207 and the nut 208 do not exceed the through holes 202, they do not protrude to the outside of the mounting block 201, avoiding the problem that the bolt 207 and the nut 208 exposed outside the mounting block 201 interfere with the machining of the aluminum alloy by the ball cutter which is rotating. The other side of the outer wall of the shank of the bolt 207 is threadedly connected with the nut 208. The lower end of the mounting block 201 is fixedly connected with the cutter rod 1. The threaded connection of the bolt 207 and the connecting block 203, combined with the threaded connection of the nut 208 and the bolt 207, enables the cutter head 3 to rotate at high speed, and under the action of the nut 208, the bolt 207 can stably fix the connecting block 203 on the mounting block 201, preventing the bolt 207 from loosening, improving the stability of the cutter head 3, and preventing the cutter head 3 from falling off the mounting block 201. The cutter rod 1 fixedly connected to the lower end of the mounting block 201 enables the ball cutter to be inserted into the spindle hole of the machine tool and rotated under the drive of the machine tool.

[0034] Working principle: when using the ball cutter for precision machining of aviation aluminum alloy, first, the staff inserts the ball cutter for precision machining of aviation aluminum alloy into the spindle hole of the machine tool by means of the cutter bar 1 fixedly connected to the lower end of the mounting block 201, then starts the machine tool to drive the ball cutter for precision machining of aviation aluminum alloy to rotate and process the aviation aluminum alloy, secondly, the waste chips cut down when the cutter head 3 contacts with the aviation aluminum alloy material are discharged through the three chip grooves 4 on the cutter head 3, and the diamond coating attached to the cutter head 3 can improve the wear resistance of the cutter head 3, finally, when processing for a period of time, the staff stops the machine tool, unscrews the bolt 207, rotates the cutter head 3 to release the clamping of the clamping block 206 and the clamping groove 204, takes down the cutter head 3, then aligns the connecting block 203 and the two clamping blocks 206 at the lower end of the new cutter head 3 with the sliding groove 209 and the clamping groove 204 respectively, rotates the cutter head 3 after inserting, clamps the clamping block 206 and the clamping groove 204, at this time, the cutter head 3 is hung on the mounting block 201, the staff fixes the connecting block 203 and the mounting block 201 by means of the bolt 207 and the nut 208, and completes the replacement of the cutter head 3.

[0035] Finally, it should be noted that: the above only for the preferred specific embodiments of the present application, and does not limit the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. An aeronautical aluminium alloy ball cutter for precision machining comprising a head (3) and a connecting mechanism (2), characterised in that: The lower end of the cutter head (3) is provided with a connecting mechanism (2), the connecting mechanism (2) comprises a bolt (207) and a mounting block (201), the middle part of the lower end of the cutter head (3) is fixedly connected with a connecting block (203), the front end and the rear end of the upper end of the mounting block (201) are both provided with a clamping groove (204), the front end and the rear end of the lower end of the cutter head (3) are both fixedly connected with a supporting rod (205), the lower end of the supporting rod (205) is fixedly connected with a clamping block (206), and the middle part of the outer wall of the rod body of the bolt (207) is screwed with the connecting block (203).

2. The ball tool for precision machining of an aerospace aluminum alloy as claimed in claim 1, wherein: The cutter head (3) is made of hard alloy with diamond coating attached to the surface, and the outer wall of the cutter head (3) is provided with three chip grooves (4).

3. The ball tool for precision machining of an aerospace aluminum alloy as claimed in claim 1, wherein: The supporting rod (205) and the clamping groove (204) are slidingly connected, and the clamping block (206) is connected with the clamping groove (204) through clamping.

4. The ball tool for precision machining of an aerospace aluminum alloy as claimed in claim 1, wherein: The middle part of the upper end of the mounting block (201) is provided with a sliding groove (209), and the connecting block (203) is slidingly connected with the sliding groove (209).

5. The ball tool for precision machining of an aerospace aluminum alloy as claimed in claim 1, wherein: The outer wall of the mounting block (201) is provided with a through hole (202) on both sides, and the bolt (207) penetrates through the mounting block (201) to the outside of the through hole (202) on both sides.

6. The ball tool for precision machining of an aerospace aluminum alloy as claimed in claim 1, wherein: The other side of the outer wall of the rod body of the bolt (207) is screwed with a nut (208), and the lower end of the mounting block (201) is fixedly connected with a cutter bar (1).

Images