CN218874017U

CN218874017U - Thread milling cutter with replaceable cutter head

Info

Publication number: CN218874017U
Application number: CN202221572505.1U
Authority: CN
Inventors: 蒋向荣
Original assignee: CHANGZHOU HENGDING TOOL MANUFACTURING CO LTD
Current assignee: CHANGZHOU HENGDING TOOL MANUFACTURING CO LTD
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2023-04-18
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a thread milling cutter with replaceable cutter head, including cutter arbor, cutter head and fixed subassembly. The utility model has the advantages that: the utility model discloses when assembling, dock fast between locating lever and the constant head tank for spacing groove and adjusting screw are in on the same axis, need not to adjust the position between spacing groove and the adjusting screw, then through screwing four adjusting screw, fix cutter arbor and tool bit, through setting up the spring, can utilize its elastic action to improve the fastness of the two connection, thereby improve the installation effectiveness of cutter arbor and tool bit, conveniently when the tool bit damages seriously, change it; the chip removal grooves are formed in the cutter head in a winding mode, waste chips generated by milling can be cleaned, the waste chips are prevented from being accumulated near the cutter head, abrasion to the cutter head is avoided, the holding part is arranged on the rod body of the cutter bar, the surface of the holding part is provided with anti-skidding lines, a user can take the cutter conveniently, and the situation that the cutter slides down from the hand is avoided.

Description

Thread milling cutter with replaceable cutter head

Technical Field

The utility model relates to a thread milling cutter specifically is a replaceable thread milling cutter of tool bit belongs to cutting tool technical field.

Background

A thread milling cutter is a rotary tool for milling having one or more cutting teeth, and when the thread milling cutter is used, the thread milling cutter needs to be connected to a mechanical device so as to be convenient for the use of the thread milling cutter.

When the existing thread milling cutters are used, the following defects often exist:

1) When the existing thread milling cutters are used, the cutter head and the cutter bar cannot be disassembled, and when the cutter head is seriously abraded in the using process, the whole cutter is often required to be replaced, so that the using cost is increased;

2) When some existing thread milling cutters are used, waste chips generated by milling are inconvenient to discharge, and the waste chips are accumulated near the cutter head and easily abrade the cutter head.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a thread milling cutter with replaceable cutting inserts for solving at least one of the above-mentioned problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a thread milling cutter with replaceable cutter head comprises

The cutter bar is arranged on the upper side of the thread milling cutter, the central position of the upper end of the cutter bar is fixedly provided with a connector, and the central position of the lower end of the cutter bar is internally and fixedly provided with a positioning groove;

the center position of the upper end of the cutter head is fixedly provided with a positioning rod, the periphery of an upper rod body of the positioning rod is provided with a limiting groove, and a lower rod body of the cutter head is provided with a thread milling edge;

the fixed assembly comprises a mounting groove formed in the cutter bar body and an adjusting screw rod arranged in the mounting groove, and the cutter bar and the cutter head are detachably connected through the fixed assembly.

As a further aspect of the present invention: a holding part is arranged on the rod body of the cutter rod, and anti-skid grains are arranged on the surface of the holding part.

As a further aspect of the present invention: the tool bit is wound with a chip removal groove.

As a further aspect of the present invention: and a rubber cushion block is fixedly connected to the inner top wall of the positioning groove.

As a further aspect of the present invention: the lower surface central point of rubber cushion puts inside and has seted up spacing hole, the upper end central point of locating lever puts fixedly connected with and spacing hole matched with stopper.

As the utility model discloses further scheme again: the threaded groove has been seted up to the intercommunication between mounting groove and the constant head tank, and threaded groove internal thread connects has adjusting screw, adjusting screw's one end extends to in the constant head tank, and in its other end extends to the mounting groove, fixedly connected with spring in the mounting groove, and the spring cup joints on adjusting screw's a side pole body, adjusting screw is provided with four.

The utility model has the advantages that:

1) The utility model discloses when assembling, dock fast between locating lever and the constant head tank for spacing groove and adjusting screw are in on the same axis, need not to adjust the position between spacing groove and the adjusting screw, then through screwing four adjusting screw, fix cutter arbor and tool bit, through setting up the spring, can utilize its elastic action to improve the fastness of the two connection, thereby improve the installation effectiveness of cutter arbor and tool bit, conveniently when the tool bit damages seriously, change it;

2) The utility model discloses a winding is provided with the chip groove on the tool bit, can clear up the sweeps that mills the production, avoids the sweeps to pile up near the tool bit, causes wearing and tearing to the tool bit, is provided with the portion of gripping on the pole body of cutter arbor moreover, and the surface of gripping is provided with anti-skidding line, and the person of facilitating the use takes, avoids taking place the condition of cutter follow mid-hand landing.

Drawings

Fig. 1 is a schematic front view structure diagram of the thread milling cutter of the present invention;

FIG. 2 is a schematic view of the internal connection structure of the thread milling cutter of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is the utility model discloses the cutter arbor overlooks the structure sketch map with the section of tool bit connection.

In the figure: 1. the cutter arbor, 2, connector, 3, the portion of gripping, 4, tool bit, 5, screw milling sword, 6, chip groove, 7, constant head tank, 8, rubber cushion, 9, mounting groove, 10, thread groove, 11, adjusting screw, 12, spring, 13, locating lever, 14, stopper, 15, spacing hole, 16, spacing groove.

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 one

As shown in fig. 1 to 4, a replaceable-bit thread milling cutter includes

The cutter bar 1 is arranged on the upper side of the thread milling cutter, the central position of the upper end of the cutter bar 1 is fixedly provided with a connector 2, and the central position of the lower end of the cutter bar 1 is internally and fixedly provided with a positioning groove 7;

a positioning rod 13 is fixedly arranged at the center of the upper end of the cutter head 4, limiting grooves 16 are formed in the periphery of an upper rod body of the positioning rod 13, and a thread milling blade 5 is arranged on a lower rod body of the cutter head 4;

the fixing component comprises a mounting groove 9 formed in the rod body of the cutter bar 1 and an adjusting screw rod 11 arranged in the mounting groove 9, and the cutter bar 1 and the cutter head 4 are detachably connected through the fixing component.

The embodiment of the utility model provides an in, rubber cushion 8's lower surface central point puts inside spacing hole 15 of having seted up, the upper end central point of locating lever 13 puts fixedly connected with and spacing hole 15 matched with stopper 14, can be when the assembly, dock fast between locating lever 13 and the constant head tank 7 for spacing groove 16 is located same axis with adjusting screw 11, need not to adjust the position between spacing groove 16 and the adjusting screw 11, thereby improves the installation effectiveness of cutter arbor 1 and tool bit 4.

The embodiment of the utility model provides an in, thread groove 10 has been seted up to the intercommunication between mounting groove 9 and the constant head tank 7, and thread groove 10 internal thread is connected with adjusting screw 11, adjusting screw 11's one end extends to in the constant head tank 7, and its other end extends to in the mounting groove 9, fixedly connected with spring 12 in the mounting groove 9, and spring 12 cup joints in one side pole body of adjusting screw 11, and adjusting screw 11 is provided with four, after docking cutter arbor 1 with tool bit 4, through screwing four adjusting screw 11, thereby fix cutter arbor 1 with tool bit 4, through setting up spring 12, can utilize its spring action to improve the fastness that the two is connected.

Example two

As shown in fig. 1 to 4, a replaceable-bit thread milling cutter includes

a positioning rod 13 is fixedly arranged at the center of the upper end of the cutter head 4, limiting grooves 16 are formed in the periphery of an upper rod body of the positioning rod 13, and a thread milling edge 5 is arranged on a lower rod body of the cutter head 4;

The embodiment of the utility model provides an in, the pole body of cutter arbor 1 is provided with the portion of gripping 3, and the 3 surfaces of portion of gripping are provided with anti-skidding line, and the person of facilitating the use takes, avoids taking place the condition of cutter follow landing in hand.

The embodiment of the utility model provides an in, the winding is provided with chip groove 6 on tool bit 4, can clear up the sweeps that mills the production, avoids the sweeps to pile up near tool bit 4, causes wearing and tearing to tool bit 4.

The embodiment of the utility model provides an in, fixedly connected with rubber pad 8 on the interior roof of constant head tank 7 can prevent direct contact between locating lever 13 and the constant head tank 7 inner wall, avoids causing wearing and tearing.

The working principle is as follows: when the thread milling cutter with the replaceable cutter bit is used, firstly, the positioning rod 13 and the positioning groove 7 are quickly butted, so that the limiting groove 16 and the adjusting screw 11 are positioned on the same axis, the position between the limiting groove 16 and the adjusting screw 11 does not need to be adjusted, then, the cutter bar 1 and the cutter bit 4 are fixed by screwing the four adjusting screws 11, and the spring 12 is arranged, so that the connecting firmness of the cutter bar 1 and the cutter bit 4 can be improved by utilizing the elastic action of the spring 12, the mounting efficiency of the cutter bar 1 and the cutter bit 4 is improved, and the cutter bit 4 is convenient to replace when being seriously damaged; be provided with chip groove 6 through the winding on tool bit 4, can clear up the sweeps that mills the production, avoid the sweeps to pile up near tool bit 4, cause wearing and tearing to tool bit 4, be provided with the portion of gripping 3 on the pole body of cutter arbor 1 in addition, and the 3 surfaces of the portion of gripping are provided with anti-skidding line, and the person of facilitating the use takes, avoids taking place the condition that the cutter slided from hand.

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. A thread milling cutter with replaceable cutter head, characterized by comprising

The cutter bar (1) is arranged on the upper side of the thread milling cutter, the central position of the upper end of the cutter bar is fixedly provided with a connector (2), and the central position of the lower end of the cutter bar is internally and fixedly provided with a positioning groove (7);

the center position of the upper end of the cutter head (4) is fixedly provided with a positioning rod (13), the periphery of an upper rod body of the positioning rod (13) is provided with a limiting groove (16), and a lower rod body of the cutter head (4) is provided with a thread milling edge (5);

the fixing component comprises a mounting groove (9) formed in the rod body of the cutter bar (1) and an adjusting screw rod (11) arranged in the mounting groove (9), and the cutter bar (1) and the cutter head (4) are detachably connected through the fixing component.

2. A replaceable-cutting-head thread milling cutter according to claim 1, wherein: a holding part (3) is arranged on the shank of the cutter bar (1), and anti-skid grains are arranged on the surface of the holding part (3).

3. A replaceable-cutting-head thread milling cutter according to claim 1, wherein: the tool bit (4) is wound with a chip removal groove (6).

4. A replaceable-cutting-head thread milling cutter according to claim 1, wherein: and a rubber cushion block (8) is fixedly connected to the inner top wall of the positioning groove (7).

5. A replaceable-cutting-head thread milling cutter according to claim 4, wherein: the lower surface central point of rubber cushion (8) puts inside spacing hole (15) of having seted up, the upper end central point of locating lever (13) puts fixedly connected with and spacing hole (15) matched with stopper (14).

6. A replaceable-cutting-head thread milling cutter according to claim 1, wherein: threaded groove (10) have been seted up in the intercommunication between mounting groove (9) and constant head tank (7), and threaded groove (10) internal thread is connected with adjusting screw (11), in adjusting screw (11) one end extended to constant head tank (7), and its other end extended to mounting groove (9), fixedly connected with spring (12) in mounting groove (9), and spring (12) cup joint on one side pole body of adjusting screw (11), adjusting screw (11) are provided with four.