CN217121879U

CN217121879U - Split type hard alloy milling cutter

Info

Publication number: CN217121879U
Application number: CN202220835406.1U
Authority: CN
Inventors: 陈新海
Original assignee: Changzhou Carney Precision Tools Co ltd
Current assignee: Changzhou Carney Precision Tools Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-08-05
Anticipated expiration: 2032-04-12

Abstract

The utility model discloses a split type carbide milling cutter, including the body of rod and screw cavity, the inside on body of rod top is provided with the screw cavity, the bottom of screw cavity is provided with movable cavity, the top of the body of rod is provided with the tool bit, the inside of tool bit vertically is provided with the heat dissipation chamber way, be provided with the air channel between the bottom of heat dissipation chamber way both sides and the tool bit respectively. This split type carbide milling cutter is provided with the screw thread cavity through the inside on mobile jib body top, twist reverse the screw thread cavity that the tool bit made its bottom welded stub screw revolve the body top of the mobile jib, and it is fixed with it meshing, and the grafting piece that the stub screw below set up, then be arranged in promoting the fixture block of installation in the four group rectangle notches in the activity cavity and slide along its inside wall outside department, the frictional resistance that produces between cooperation outside section of thick bamboo wall and the dull polish top layer, promote the joint strength between the mobile jib body and the tool bit, the not good enough problem of split type milling cutter stability has been solved.

Description

Split type hard alloy milling cutter

Technical Field

The utility model relates to an alloy milling cutter technical field specifically is a split type carbide milling cutter.

Background

Milling cutter is as the name implies, it mills processing metal specially, pottery, plastic products's rotation type cutter even, its outside equipartition is orderly to be covered with the insection, install and to carry out behind the output of things such as sword tower, electric drill and cut off, drilling, work such as the style of polishing, in order to ensure milling cutter can not break easily, adopt hard gold preparation now more, and design for split type, in order to make things convenient for dismouting, but ordinary milling cutter very easily produces the slippage separation under the rotatory operation of high strength, both dangerous and be difficult to guarantee machining efficiency, the above-mentioned problem of neotype split type carbide milling cutter solution is proposed at present, the stability of milling cutter during operation is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a split type carbide milling cutter to propose split type milling cutter stability not good enough problem in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a split type carbide milling cutter, includes the body of rod and screw thread cavity, the inside on body of rod top is provided with the screw thread cavity, the bottom of screw thread cavity is provided with movable cavity, the top of the body of rod is provided with the tool bit, the inside of tool bit vertically is provided with the heat dissipation chamber way, be provided with the air channel between the bottom of heat dissipation chamber way both sides and the tool bit respectively, the inboard of air channel is provided with the dog, the bottom welded fastening of tool bit has short lead screw.

Preferably, the short screw rod is embedded in the threaded cavity, the bottom fixedly connected with of short screw rod inserts the piece, the both sides and the both ends of activity cavity are provided with the rectangle notch respectively, the inside swing joint of rectangle notch has the fixture block, the outside of fixture block is provided with the dull polish top layer.

Preferably, the fixture blocks are respectively embedded in the rectangular notches, and the fixture blocks can horizontally slide inside and outside along the inner walls of the rectangular notches.

Preferably, a block is inserted between the vent groove and the stop block, a dustproof gauze is longitudinally arranged inside the block, and a hollow block is fixedly welded on the inner side of the block.

Preferably, both ends and both sides of the outside below of the main rod body are fixedly connected with shell fragment respectively, the outer wall of the bottom of the main rod body is encircled and is provided with a mounting groove, a reinforcing spring is fixedly welded between the mounting groove and the shell fragment, and the outside of the shell fragment is provided with a silica gel pad.

Preferably, one end of each reinforcing spring is embedded in each mounting groove, and the reinforcing springs and the mounting grooves are arranged at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the split type hard alloy milling cutter not only realizes the prevention of cutter body separation and the heat dissipation of the cutter head, but also realizes the reinforcement of the joint of the rod body;

(1) the threaded cavity is arranged in the top end of the main rod body, the tool bit is twisted to enable the short screw rods welded at the bottom ends of the tool bit to be screwed into the threaded cavity at the top of the main rod body and to be meshed and fixed with the threaded cavity, and the inserting blocks arranged below the short screw rods are used for pushing the clamping blocks arranged in the four groups of rectangular notches in the movable cavity to slide outwards along the inner walls of the clamping blocks, so that the inserting blocks are clamped by the clamping blocks in cooperation with the friction resistance generated between the outer side cylinder wall and the frosted surface layer, and the connection strength between the main rod body and the tool bit is improved;

(2) through arranging vent grooves between the bottom ends of the two sides of the heat dissipation cavity and the cutter head respectively, the blocking blocks are inserted into the vent grooves with the stop blocks respectively and are matched with the hollow blocks and the stop blocks to be clamped and fixed, the blocking blocks are prevented from falling off, and the inner sides of the blocking blocks are provided with dustproof gauze screens, so that when the heat dissipation of the cutter head is carried out through the longitudinal heat dissipation cavity and the vent grooves, scraps or dust are prevented from entering the interior of the longitudinal heat dissipation cavity and the vent grooves;

(3) through both ends and both sides fixedly connected with shell fragment respectively in the outside below of the main pole body, when installing the main pole body, press its bottom hard until it falls into among the axostylus axostyle for four group's shell fragments that the outside distributes receive the extrusion of axostylus axostyle respectively and produce deformation, and also are connected by multiunit reinforcing spring between shell fragment and the mounting groove, can provide reverse holding power, prevent again with the silica gel pad of outside setting that the main pole body breaks away from the axostylus axostyle of installation easily.

Drawings

FIG. 1 is a schematic view of the front cross-sectional structure of the present invention;

fig. 2 is a schematic view of the cross-sectional structure of the threaded chamber according to the present invention;

fig. 3 is an enlarged partial sectional view of the utility model at a in fig. 1;

fig. 4 is a schematic view of the front view section structure of the elastic sheet of the present invention.

In the figure: 1. a main rod body; 2. an insertion block; 3. a threaded chamber; 4. a vent channel; 5. blocking; 6. a heat dissipation cavity channel; 7. a cutter head; 8. a dust-proof gauze; 9. a stopper; 10. a short screw rod; 11. a rectangular notch; 12. a clamping block; 13. a movable chamber; 14. a spring plate; 15. mounting grooves; 16. reinforcing the spring; 17. sanding the surface layer; 18. a hollow block; 19. a silica gel pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, a split type hard alloy milling cutter comprises a main rod body 1 and a thread chamber 3, wherein the thread chamber 3 is arranged inside the top end of the main rod body 1, a movable chamber 13 is arranged at the bottom of the thread chamber 3, a cutter head 7 is arranged at the top of the main rod body 1, a heat dissipation channel 6 is longitudinally arranged inside the cutter head 7, and a short screw rod 10 is fixedly welded at the bottom of the cutter head 7;

the short screw rod 10 is embedded in the threaded cavity 3, the bottom of the short screw rod 10 is fixedly connected with the insertion block 2, two sides and two ends of the movable cavity 13 are respectively provided with a rectangular notch 11, a fixture block 12 is movably connected inside the rectangular notch 11, a frosted surface layer 17 is arranged on the outer side of the fixture block 12, the fixture block 12 is respectively embedded inside the rectangular notch 11, and the fixture block 12 can horizontally slide inside and outside along the inner wall of the rectangular notch 11;

specifically, as shown in fig. 1 and 2, the cutter head 7 is twisted to make the short screw rod 10 welded at the bottom end thereof screwed into the threaded cavity 3 at the top of the main rod body 1 and engaged and fixed with the threaded cavity, and the insertion block 2 arranged below the short screw rod 10 is used for pushing the fixture blocks 12 arranged in the four groups of rectangular notches 11 in the movable cavity 13 to slide outwards along the inner wall thereof, so that the fixture blocks 12 are used for clamping the insertion block 2 in cooperation with the frictional resistance generated between the outer side cylinder wall and the frosted surface layer 17, thereby improving the connection strength between the main rod body 1 and the cutter head 7.

Example 2: vent grooves 4 are respectively arranged between the bottom ends of the two sides of the heat dissipation cavity 6 and the cutter head 7, a stop block 9 is arranged on the inner side of each vent groove 4, a blocking block 5 is inserted between each vent groove 4 and each stop block 9, a dustproof gauze 8 is longitudinally arranged inside each blocking block 5, and a hollow block 18 is fixedly welded on the inner side of each blocking block 5;

specifically, as shown in fig. 1 and 3, the blocking piece 5 is inserted into the vent groove 4 with the stop block 9, and is fixed by the hollow block 18 and the stop block 9, so as to prevent the blocking piece 5 from falling off, and the inner side of the blocking piece 5 is provided with the dust-proof gauze 8, so that when the thermal dissipation of the cutter head 7 is carried out through the longitudinal heat dissipation cavity 6 and the vent groove 4, debris or dust is prevented from entering the interior of the vent groove.

Example 3: the two ends and two sides of the lower part of the outer part of the main rod body 1 are respectively and fixedly connected with elastic sheets 14, the outer wall of the bottom of the main rod body 1 is provided with an installation groove 15 in a surrounding manner, a reinforcing spring 16 is fixedly welded between the installation groove 15 and the elastic sheets 14, the outer side of each elastic sheet 14 is provided with a silica gel pad 19, one end of each reinforcing spring 16 is embedded in the installation groove 15, and the reinforcing springs 16 and the installation grooves 15 are arranged between the elastic sheets 14 and the main rod body 1 at equal intervals;

specifically, as shown in fig. 1 and 4, when the main rod body 1 is installed, the bottom of the main rod body is pressed with force, so that four sets of elastic pieces 14 distributed on the outer side are respectively extruded by the shaft rod to generate deformation, and the elastic pieces 14 and the installation groove 15 are also connected by a plurality of sets of reinforcing springs 16, so as to provide reverse supporting force, and then the main rod body 1 is prevented from being easily separated from the installation shaft rod by an externally arranged silica gel pad 19.

The working principle is as follows: when the utility model is used, firstly, the cutter head 7 is twisted to lead the short screw rod 10 welded at the bottom end to be screwed into the thread cavity 3 at the top of the main rod body 1 and to be meshed and fixed with the thread cavity, and the inserting block 2 arranged below the short screw rod 10 is used for pushing the fixture blocks 12 arranged in four groups of rectangular notches 11 in the movable cavity 13 to slide outwards along the inner wall of the fixture blocks, the fixture blocks 5 are respectively inserted into the vent grooves 4 with the stop blocks 9 in cooperation with the friction resistance generated between the outer side cylinder wall and the frosted surface layer 17, the inserting block 2 is clamped by the fixture blocks 12, thereby improving the connection strength between the main rod body 1 and the cutter head 7, the stop blocks 5 are respectively inserted into the vent grooves 4 with the stop blocks 9 in cooperation with the hollow blocks 18 and the stop blocks 9 to be fixed, the stop blocks 5 are prevented from falling off, the inner side of the stop blocks 5 is provided with the dustproof gauze 8, when the thermal power of the cutter head 7 is discharged through the longitudinal heat dissipation cavity channel 6 and the vent grooves 4, the chips or dust are prevented from entering the interior of the main rod body, and finally when the main rod body 1 is installed, the bottom of the main rod body is pressed with force, so that the four groups of elastic sheets 14 distributed on the outer side are extruded by the shaft rod to generate deformation, and the elastic sheets 14 and the mounting groove 15 are connected by a plurality of groups of reinforcing springs 16, so that reverse supporting force can be provided, and the main rod body 1 is prevented from being easily separated from the mounting shaft rod.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a split type carbide milling cutter, includes the body of the main rod (1) and screw cavity (3), its characterized in that: the inside on the main body of rod (1) top is provided with screw cavity (3), the bottom of screw cavity (3) is provided with movable cavity (13), the top of the main body of rod (1) is provided with tool bit (7), the inside of tool bit (7) vertically is provided with heat dissipation chamber way (6), be provided with air channel (4) between the bottom of heat dissipation chamber way (6) both sides and tool bit (7) respectively, the inboard of air channel (4) is provided with dog (9), the bottom welded fastening of tool bit (7) has short lead screw (10).

2. The split carbide milling cutter according to claim 1, wherein: the short screw rod (10) is embedded in the threaded cavity (3), the bottom fixedly connected with plugging block (2) of the short screw rod (10), the two sides and the two ends of the movable cavity (13) are respectively provided with a rectangular notch (11), the inside movably connected with clamping block (12) of the rectangular notch (11), and the outer side of the clamping block (12) is provided with a frosted surface layer (17).

3. The split carbide milling cutter according to claim 2, wherein: the clamping blocks (12) are respectively embedded in the rectangular notches (11), and the clamping blocks (12) can horizontally slide inwards and outwards along the inner walls of the rectangular notches (11).

4. The split carbide milling cutter according to claim 1, wherein: a blocking block (5) is inserted between the vent groove (4) and the stop block (9), a dustproof gauze (8) is longitudinally arranged inside the blocking block (5), and a hollow block (18) is fixedly welded on the inner side of the blocking block (5).

5. The split type cemented carbide milling cutter according to claim 1, wherein: both ends and both sides difference fixedly connected with shell fragment (14) of the outside below of the body of the mast (1), the outer wall of the body of the mast (1) bottom encircles and is provided with mounting groove (15), fixed welding has reinforcing spring (16) between mounting groove (15) and shell fragment (14), the outside of shell fragment (14) is provided with silica gel pad (19).

6. The split carbide milling cutter according to claim 5, wherein: one end of each reinforcing spring (16) is embedded in each mounting groove (15), and the reinforcing springs (16) and the mounting grooves (15) are arranged at equal intervals.