CN211966078U

CN211966078U - High-strength internal thread angle milling head

Info

Publication number: CN211966078U
Application number: CN202020339024.0U
Authority: CN
Inventors: 李志兵
Original assignee: Changzhou Zelda Machinery Co ltd
Current assignee: Changzhou Zelda Machinery Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-20
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a high-strength internal thread angle milling head, which comprises a cutter bar shell, a cutter disc and a cutting tool, wherein a needle bearing is arranged inside the cutter bar shell, a main shaft penetrates through the interior of the needle bearing, one end of the main shaft is connected with the cutter disc, a screw hole is formed in the center of the main shaft, and the cutter disc is rotatably sleeved on the main shaft of the connecting end of the cutter disc through a bolt; the other end of the main shaft is connected with a transmission shaft, a box body is horizontally arranged below the transmission shaft, a coupler is connected to one end of the transmission shaft in a clamped mode, a deep groove ball bearing is sleeved on the outer ring of the transmission shaft in a sleeved mode, a universal joint is arranged on the side wall of one end of the deep groove ball bearing, and a movable dragging plate is connected to one end of the coupler in a clamped mode. The milling head greatly expands the function of the cyclone milling by the bending angle head, namely the normal helix angle of the internal thread, and the rotation and the movement of the cutter of the angle head by using a universal joint transmission technology, thereby achieving the purpose of processing the large-lead ultra-long internal hole thread.

Description

High-strength internal thread angle milling head

Technical Field

The utility model relates to a machine tool accessory, machining technique specifically are a whirlwind cutter head manufacturing technology of car, milling combined machining, belong to machine tool accessory processing application technology field.

Background

At present, along with the development of the domestic machining technology, a cyclone milling head applied by turning and milling combination has a structural bottleneck, particularly when a small-aperture large-lead internal thread is machined and the helix angle of the cyclone milling head needs to be adjusted, the length of the internal thread is greatly limited due to the interference of a straight cutter bar, and the matching space of the cyclone milling internal thread machining technology and the external thread machining technology is restricted, so that the application of the cyclone milling technology is difficult to widen.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high strength internal thread angle cutter head in order to solve above-mentioned problem.

The utility model discloses a technical scheme realizes above-mentioned purpose, a high strength internal thread angle cutter head, including cutter arbor shell, blade disc and cutting tool, cutter arbor shell internally mounted needle bearing, and needle bearing inside joint has cross, the main shaft has been run through to needle bearing inside, and main shaft one end is connected with the blade disc, the main shaft center takes shape and has the screw, the blade disc rotationally overlaps on the main shaft of blade disc link through the bolt; the other end of the main shaft is connected with a transmission shaft, a box body is horizontally arranged below the transmission shaft, a coupler is connected to one end of the transmission shaft in a clamped mode, a deep groove ball bearing is sleeved on the outer ring of the transmission shaft in a sleeved mode, a universal joint is arranged on the side wall of one end of the deep groove ball bearing, and a movable dragging plate is connected to one end of the coupler in a clamped mode.

Furthermore, the outer ring of the transmission shaft is sleeved with a double-row angular contact bearing matched with the deep groove ball bearing, and a plurality of bolt holes are formed in the double-row angular contact bearing.

Further, the transmission shaft is connected with the motor through the coupler, and the motor is movably connected with the transmission shaft.

Furthermore, the outer ring of the main shaft is provided with a locking screw and a nut matched with the locking screw.

Furthermore, four cutting tools are arranged on the cutter disc.

Further, the blade disc is discoid blade disc, cutting means is numerical control triangle blade, four cutting means with form the fan blade shape structure between the blade disc, one of its angle is the obtuse angle, and one is the acute angle.

Further, the transmission shaft is installed in front of the box body and the double-row angular contact bearing.

Further, an L-shaped structure is formed between the motor and the box body.

Furthermore, the cutter disc is a fire wheel-shaped cutter disc, the cutting tool is a numerical control triangular blade, and one corner of the numerical control triangular blade corresponds to the wheel angle of the fire wheel-shaped cutter disc.

The utility model has the advantages that: the milling head changes the traditional mode that a straight cutter bar processes an internal thread and an angle head is added to the straight cutter bar by using internal transmission, the angle head is a normal helix angle of the internal thread through bending, a universal joint transmission technology is applied to the rotation of the cutter bar of the angle head, the functional performance of the cyclone milling is greatly expanded, the angle head uses a double-row angular contact bearing as a supporting bearing of a cutter disc and a universal joint, the other end of the universal joint is a transmission shaft which is supported by a needle bearing and a deep groove ball bearing, power is transmitted to the transmission shaft by a motor through a coupler, the universal joint drives the cutter disc to move, and the purpose of processing the large-lead ultra-long inner hole thread is achieved.

Drawings

Fig. 1 is the utility model discloses a high strength internal thread angle cutter head cross-sectional view.

Fig. 2 is a side view of the high-strength internal thread angle milling head of the present invention.

Fig. 3 is the utility model discloses the high strength internal thread angle cutter head spatial structure decomposes the sketch map.

Fig. 4 is the fire wheel-shaped cutter head structure schematic diagram of the high-strength internal thread angle milling head of the utility model.

Fig. 5 is the utility model discloses the discoid blade disc structure sketch map of high strength internal thread angle cutter head.

In the figure: 1. a cutter bar housing; 2. a needle bearing; 3. a cross block; 4. a main shaft; 5. locking screws; 6. a drive shaft; 7. a case body; 8. an electric motor; 9. a coupling; 10. a universal joint; 11. a deep groove ball bearing; 12. a double row angular contact bearing; 13. a nut; 14. a cutter head; 15. a movable carriage; 16. a cutting tool.

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 the ordinary skilled person in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1-5, the high-strength internal thread angle milling head comprises a cutter bar housing 1, a cutter disc 14 and a cutting tool 16, wherein a needle bearing 2 is installed inside the cutter bar housing 1, a cross block 3 is clamped inside the needle bearing 2, a main shaft 4 penetrates through the inside of the needle bearing 2, one end of the main shaft 4 is connected with the cutter disc 14, a screw hole (not shown in the figure) is formed in the center of the main shaft 4, and the cutter disc 14 is rotatably sleeved on the main shaft 4 at the connecting end of the cutter disc 14 through a bolt (not shown in the figure); the other end of the main shaft 4 is connected with a transmission shaft 6, a box body 7 is horizontally arranged below the transmission shaft 6, a coupler 9 is connected to one end of the transmission shaft 6 in a clamped mode, a deep groove ball bearing 11 is sleeved on the outer ring of the transmission shaft 6, a universal joint 10 is arranged on the side wall of one end of the deep groove ball bearing 11, and a movable dragging plate 15 is connected to one end of the coupler 9 in a clamped mode.

As a technical optimization scheme of the utility model, 6 outer lanes of transmission shaft have cup jointed the double row angular contact bearing 12 who matches with deep groove ball bearing 11 mutually, and are equipped with a plurality of keyhole on the double row angular contact bearing 12, make deep groove ball bearing 11 steady more, firm at rotatory during operation.

As a technical optimization scheme of the utility model, transmission shaft 6 passes through shaft coupling 9 and connects motor 8, and motor 8 is swing joint with transmission shaft 6, makes transmission shaft 6 can normally drive each part and carry out the transmission of working.

As a technical optimization scheme of the utility model, 4 outer lanes of main shaft are equipped with locking screw 5 to be provided with rather than assorted nut 13, make locking screw 5 can normally connect this cutter head of screw in.

As a technical optimization scheme of the utility model, set up four cutting means 16 on the blade disc 14, make this cutter head internal and external screw thread processing more high-efficient, comprehensive.

As a technical optimization scheme of the utility model, see fig. 5, blade disc 14 is discoid blade disc, cutting tool 16 is numerical control triangle blade, four cutting tool 16 with form the fan blade shape structure between the blade disc 14, one of its angle is obtuse angle alpha, and one is acute angle beta, and is more accurate when making this cutter head processing screw thread.

As a technical optimization scheme of the utility model, transmission shaft 6 is installed before box 7 and double row angular contact bearing 12, makes transmission shaft 6 place more firmly in this cutter head.

As a technical optimization scheme of the utility model, form L shape structure between motor 8 and the box 7, make motor 8 place more steadily on this cutter head, it is more accurate to the transmission of transmission shaft 6.

As a technical optimization scheme of the utility model, see fig. 4, blade disc 14 is fire wheel form blade disc, cutting means 16 is numerical control triangle blade, the one corner of numerical control triangle blade with the wheel angle of fire wheel form blade disc corresponds.

The utility model discloses when using, firstly, whole cutter head rigidity, secondly, when using this cutter head, universal joint 10 transmission is applied through 14 rotary motion of blade disc, the functional performance of whirlwind milling has been expanded greatly, as blade disc 14 and universal joint 10's supporting bearing through biserial angular contact bearing 12, universal joint 10's the other end is transmission shaft 6 and is supported by bearing 2 and deep groove ball bearing 11, power is transmitted transmission shaft 6 through shaft coupling 9 by motor 8, universal joint 10, drive blade disc 14 motion, the purpose of big helical pitch overlength hole screw thread processing has been reached, install before box 7 and biserial angular contact bearing 12 through transmission shaft 6, it is more firm to make transmission shaft 6 place in this cutter head, set up four cutting tool 16 on the blade disc 14, it is internal to make this cutter head, thread processing is more high-efficient, it is comprehensive.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a high strength internal thread angle cutter head, includes cutter arbor shell (1), blade disc (14) and cutting tool (16), its characterized in that: a needle roller bearing (2) is arranged in the cutter bar shell (1), a cross block (3) is clamped in the needle roller bearing (2), a main shaft (4) penetrates through the needle roller bearing (2), one end of the main shaft (4) is connected with a cutter head (14), a screw hole is formed in the center of the main shaft (4), and the cutter head (14) is rotatably sleeved on the main shaft (4) at the connecting end of the cutter head (14) through a bolt; the utility model discloses a deep groove ball bearing, including main shaft (4), transmission shaft (6) one end joint has shaft coupling (9), just transmission shaft (6) outer lane has cup jointed deep groove ball bearing (11), be provided with universal joint (10) on the lateral wall of deep groove ball bearing (11), just shaft coupling (9) one end joint has movable planker (15).

2. The high strength internal thread angle milling head of claim 1, wherein: the outer ring of the transmission shaft (6) is sleeved with a double-row angular contact bearing (12) matched with the deep groove ball bearing (11), and a plurality of bolt holes are formed in the double-row angular contact bearing (12).

3. The high strength internal thread angle milling head of claim 1, wherein: the transmission shaft (6) is connected with the motor (8) through the coupler (9), and the motor (8) is movably connected with the transmission shaft (6).

4. The high strength internal thread angle milling head of claim 1, wherein: the outer ring of the main shaft (4) is provided with a locking screw (5) and a nut (13) matched with the locking screw.

5. The high strength internal thread angle milling head of claim 1, wherein: four cutting tools (16) are arranged on the cutter head (14).

6. The high-strength internal thread angle milling head according to claim 1 or 5, wherein: blade disc (14) are discoid blade disc, cutting tool (16) are numerical control triangle blade, four cutting tool (16) with form fan blade shape structure between blade disc (14), one of its angle is the obtuse angle, and one is the acute angle.

7. The high strength internal thread angle milling head of claim 2, wherein: the transmission shaft (6) is arranged in front of the box body (7) and the double-row angular contact bearing (12).

8. A high strength internal thread angle milling head according to claim 3, wherein: an L-shaped structure is formed between the motor (8) and the box body (7).

9. The high-strength internal thread angle milling head according to claim 1 or 5, wherein: the cutter head (14) is a fire wheel-shaped cutter head, the cutting tool (16) is a numerical control triangular blade, and one corner of the numerical control triangular blade corresponds to the wheel angle of the fire wheel-shaped cutter head.