CN210587526U

CN210587526U - Thread milling cutter with adjustable length

Info

Publication number: CN210587526U
Application number: CN201920650221.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Changzhou Angmai Tools Co Ltd
Current assignee: Changzhou Angmai Tools Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-05-22
Anticipated expiration: 2029-05-07

Abstract

The utility model relates to the technical field of cutters, and a thread milling cutter of adjustable length is disclosed. The thread milling cutter with the adjustable length comprises a cutter bar and a cutter head, wherein the bottom of the cutter bar is fixedly connected with the top of the cutter head. This thread milling cutter of adjustable length, when using, pass through collet chuck with the cutter arbor and press from both sides tightly, fixed mounting is in the handle of a knife, and be in the same place with the main shaft mounting, when the screw hole to the different degree of depth parts of processing, through adjusting the cutter arbor, when the part hole depth is darker, lengthen the cutter arbor through adding the connector and connecting the cutter arbor, when processing part hole depth is lighter, because the cutter handle of a knife is longer, can produce the vibration man-hour, influence the machining precision, through the instrument knob, remove partly connector and connect the cutter arbor, reduce cutter length, be difficult for producing the vibration, make the machining precision higher, the spraying has different coatings for the material on the screw cutting edge, in order to improve the life of tool bit.

Description

Thread milling cutter with adjustable length

Technical Field

The utility model relates to the technical field of cutters, specifically be a thread milling cutter of adjustable length.

Background

The traditional thread processing method mainly adopts a threading tool to turn threads or adopts a screw tap and a die to manually tap and sleeve and buckle. With the development of numerical control machining technology, particularly the appearance of a three-axis linkage numerical control machining system, a more advanced thread machining mode, namely, the numerical control milling of threads, is realized. Compared with the traditional thread machining mode, the thread milling machining mode has great advantages in machining precision and machining efficiency, and is not limited by a thread structure and the thread turning direction during machining, and for example, one thread milling cutter can machine internal threads and external threads with different turning directions. For the threads which are not allowed to have the transition buckle or the tool withdrawal groove structure, the threads are difficult to machine by adopting the traditional turning method or a screw tap or a screw die, but are easy to realize by adopting numerical control milling. In addition, the durability of the thread milling cutter is ten times or even tens of times of that of the screw tap, and the adjustment of the diameter size of the thread is very convenient in the process of numerical control milling of the thread, which is difficult to achieve by adopting the screw tap and the die.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a thread milling cutter of adjustable length possesses simple structure, is convenient for adjust length and is convenient for advantage such as repair, has solved to the screw thread that does not allow to have transition knot or tool withdrawal groove structure, adopts traditional turning method or screw tap, die to hardly process, and thread milling cutter's the blade of general use all is the fixed length, can't satisfy the problem in the needs in various degree of depth holes.

The utility model provides a technical scheme that its technical problem adopted is: the thread milling cutter with the adjustable length comprises a cutter bar and a cutter head, wherein the bottom of the cutter bar is fixedly connected with the top of the cutter head.

The inside of cutter arbor is including connecting cutter arbor, connector and pole cap, the outer wall of connecting the cutter arbor is connected with the inner wall threaded connection of connector, the inner wall of pole cap and the outer wall threaded connection who is connected the cutter arbor.

The utility model discloses a cutting tool, including the cutting tool, the inside of tool bit includes screw thread cutting edge, cutting fluid export, chip groove, tool bit seat and cutting fluid pipeline, the inner wall of screw thread cutting edge and the outer wall fixed connection of tool bit, the bottom fixed connection of cutting fluid export and tool bit, the chip groove is located the outer wall of tool bit and sets up, the bottom of tool bit seat and the top fixed connection of tool bit, the inner wall that the cutting fluid pipeline is located the tool bit is seted up.

Furthermore, the bottom of the cutter bar is in threaded connection with the top of the cutter head seat, and the cutter head is fixedly connected with the cutter bar through the cutter head seat arranged on the cutter head seat.

Furthermore, the bottom of the connecting cutter bar is in threaded connection with the top of the cutter head seat, and the cutter bar is fixedly connected with the cutter head seat through the connecting cutter bar arranged below the cutter bar

Furthermore, one side of the chip groove, which is far away from the thread cutting edge, is fixedly connected with the outer wall of the cutter head.

Further, the inner wall of the rod cap is in threaded connection with the top of the cutter rod.

Furthermore, external threads are formed at two ends of the connecting cutter rod, and internal threads are formed at two ends of the connector.

The utility model has the advantages that:

1. this thread milling cutter of adjustable length, when using, pass through collet chuck with the cutter arbor and press from both sides tightly, fixed mounting is in the handle of a knife, and be in the same place with the main shaft mounting, when the screw hole to the different degree of depth parts of processing, through adjusting the cutter arbor, when the part hole degree of depth is darker, lengthen the cutter arbor through adding the connector and connecting the cutter arbor, when processing part hole degree of depth is lighter, because the cutter handle of a knife is longer, can produce the vibration man-hour, influence the machining precision, through the instrument knob, remove partly connector and connect the cutter arbor, reduce cutter length, the difficult vibration that produces, make the machining precision higher.

2. This thread milling cutter of adjustable length adds man-hour, and the tool bit that sets up on the cutter arbor is applicable to the medium and small diameter thread milling of steel, cast iron and non ferrous metal material, cuts steadily, and the incorruptibility is high, and the spraying has different materials to use different coatings on the screw thread cutting edge, in order to improve the life of tool bit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a right side view of the present invention in fig. 1;

fig. 3 is a partial cross-sectional view of fig. 1 according to the present invention.

Description of reference numerals: 1. a cutter bar; 2. a cutter head; 3. a screw blade; 4. a cutting fluid outlet; 5. a chip groove; 6. a tool bit seat; 7. connecting the cutter bar; 8. a cutting fluid conduit; 9. a connector; 10. a rod cap.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-3, a thread milling cutter with adjustable length comprises a cutter bar 1 and a cutter head 2, wherein the bottom of the cutter bar 1 is fixedly connected with the top of the cutter head 2, the bottom of the cutter bar 1 is in threaded connection with the top of a cutter head seat 6, and the cutter head 2 is fixedly connected with the cutter bar 1 through the cutter head seat 6 arranged on the cutter bar, wherein the cutter head 2 arranged on the cutter bar 1 is suitable for milling medium and small-diameter threads made of steel, cast iron and non-ferrous metal materials during machining, the cutting is stable, the durability is high, different coatings for different materials are sprayed on a thread cutting edge, and the service life of the cutter head 2 is prolonged.

Cutter arbor 1's inside is including connecting cutter arbor 7, connector 9 and pole cap 10, the outer wall of connecting cutter arbor 7 and the inner wall threaded connection of connector 9, the inner wall of pole cap 10 and the outer wall threaded connection of connecting cutter arbor 7, the inner wall of pole cap 10 and cutter arbor 1's top threaded connection, wherein, pole cap 10 is in order to prevent when not, get into the dust in the cutting fluid pipeline 8, the bottom of connecting cutter arbor 7 and the top threaded connection of tool holder 6, cutter arbor 1 is through setting up connecting cutter arbor 7 and tool holder 6 fixed connection under it, wherein connect the both ends of cutter arbor 7 and seted up the external screw thread, the internal thread has been seted up at the both ends of connector 9, through setting up external screw thread and internal thread convenient connection and dismantlement.

The inside of tool bit 2 includes thread cutting edge 3, cutting fluid export 4, chip groove 5, tool bit seat 6 and cutting fluid pipeline 8, the inner wall of thread cutting edge 3 and the outer wall fixed connection of tool bit 2, the bottom fixed connection of cutting fluid export 4 and tool bit 2, chip groove 5 is located the outer wall of tool bit 2 and sets up, wherein, one side that thread cutting edge 3 was kept away from to chip groove 5 and the outer wall fixed connection of tool bit 2, through setting up the chip groove and in order to discharge the sweeps that produces when adding man-hour, prevent that the sweeps from scraping flower or damaging the part, the bottom of tool bit seat 6 and the top fixed connection of tool bit 2, cutting fluid pipeline 8 is located the inner wall of tool bit 2 and sets up, wherein spout in order to make things convenient for the cutting fluid from the cutter through setting up cutting fluid pipeline 8, prevent that the work.

When in use, the cutter bar 1 is clamped by the spring chuck, is fixedly arranged in the cutter handle and is arranged together with the main shaft, when the threaded holes of parts with different depths are machined, the cutter bar 1 is adjusted, when the depth of the hole of the part is deeper, the cutter bar 1 is lengthened by adding the connector 9 and the connecting cutter bar 7, when the depth of a processed part hole is shallow, the cutter handle is longer, vibration can be generated during processing, the processing precision is influenced, by using the tool knob, a part of the connector 9 and the connecting tool bar 7 are removed, the length of the tool is reduced, the vibration is not easy to generate, the processing precision is higher, when in processing, the cutter head arranged on the cutter bar is suitable for milling the medium and small diameter threads of steel, cast iron and non-ferrous metal materials, the cutting is stable, the durability is high, different materials are sprayed on the threading edges 3 with different coatings in order to increase the service life of the cutting head 2.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thread milling cutter with adjustable length comprises a cutter rod (1) and a cutter head (2), and is characterized in that: the bottom of the cutter bar (1) is fixedly connected with the top of the cutter head (2);

the cutter rod (1) comprises a connecting cutter rod (7), a connector (9) and a rod cap (10), the outer wall of the connecting cutter rod (7) is in threaded connection with the inner wall of the connector (9), and the inner wall of the rod cap (10) is in threaded connection with the outer wall of the connecting cutter rod (7);

the inside of tool bit (2) includes screw thread cutting edge (3), cutting fluid export (4), chip groove (5), tool bit seat (6) and cutting fluid pipeline (8), the inner wall of screw thread cutting edge (3) and the outer wall fixed connection of tool bit (2), the bottom fixed connection of cutting fluid export (4) and tool bit (2), the outer wall that chip groove (5) are located tool bit (2) is seted up, the top fixed connection of the bottom of tool bit seat (6) and tool bit (2), the inner wall that cutting fluid pipeline (8) are located tool bit (2) is seted up.

2. An adjustable length thread milling cutter as defined in claim 1, wherein: the bottom of the cutter bar (1) is in threaded connection with the top of the cutter head seat (6), and the cutter head (2) is fixedly connected with the cutter bar (1) through the cutter head seat (6) arranged on the cutter head seat.

3. An adjustable length thread milling cutter as defined in claim 1, wherein: the bottom of the connecting cutter bar (7) is in threaded connection with the top of the cutter head seat (6), and the cutter bar (1) is fixedly connected with the cutter head seat (6) through the connecting cutter bar (7) arranged below the cutter bar.

4. An adjustable length thread milling cutter as defined in claim 1, wherein: one side of the chip groove (5) far away from the thread cutting edge (3) is fixedly connected with the outer wall of the cutter head (2).

5. An adjustable length thread milling cutter as defined in claim 1, wherein: the inner wall of the rod cap (10) is in threaded connection with the top of the cutter rod (1).

6. An adjustable length thread milling cutter as defined in claim 1, wherein: external threads are formed at two ends of the connecting cutter rod (7), and internal threads are formed at two ends of the connecting head (9).