CN218799402U

CN218799402U - Double-end inner-cooling thread milling cutter

Info

Publication number: CN218799402U
Application number: CN202222825316.7U
Authority: CN
Inventors: 姜永杰
Original assignee: Changshu Lizhun Electromechanical Co ltd
Current assignee: Changshu Lizhun Electromechanical Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-04-07
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a cold thread milling cutter in double-end belongs to the milling cutter field, include: a link mechanism; the threaded inner hole tool bits are fixedly arranged on two sides of the connecting rod mechanism; the protection mechanism is sleeved on the outer wall of the connecting rod mechanism, and is in sliding fit with the connecting rod mechanism; and the positioning locking mechanism is arranged in the connecting rod mechanism in a penetrating way and is connected with the protection mechanism. The utility model discloses a protection machanism's setting comes to carry out the slidable outside parcel protection to screw hole tool bit, and cold thread milling cutter installs in using in this double-end, comes to contact with milling machine cutter centre gripping subassembly through location locking mechanism and carries out clamping work, effectively avoids carrying out direct centre gripping contact to the one end screw hole tool bit that does not use to avoid appearing the condition of deformation, reduce the error problem that screw hole tool bit milling thread work size appears after the centre gripping.

Description

Double-end internal cooling thread milling cutter

Technical Field

The utility model relates to a milling cutter field, more specifically says, relates to a cold thread milling cutter in double-end.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting off workpieces and the like on a milling machine, wherein the style of the milling cutter is complicated, the style and the structure of the milling cutter are different aiming at different milling work, and the milling cutter which is provided with threaded cutter heads at two ends of a milling cutter body and is internally provided with refrigerant conveying channels which are communicated in a staggered manner is called as a double-head internal cooling thread milling cutter.

As in application No.: CN202122524829.X, the utility model discloses an interior cold thread milling cutter in double-end, including the cutter body, the cutter body surface is provided with double-end mechanism, double-end mechanism comprises two tool bits, the inside self-cooling mechanism that is provided with of cutter body, self-cooling mechanism comprises through-hole and a plurality of centre bore, two tool bit fixed connection is in the horizontal both ends of cutter body. The utility model discloses in, the cutter body surface is provided with double-end mechanism, changeable cutting to one side tool bit in addition when the damage appears in one end tool bit, from cold mechanism comprises through-hole and a plurality of centre bore, add man-hour, pour into the coolant liquid into from the through-hole, the rethread centre bore is guided to the processing position, the cutter body both ends all are provided with the tool bit, the life of cutter has been improved, the cost is reduced, pour into the coolant liquid into to processing department through the centre bore at the in-process of processing, the cooling is more abundant, guarantee size precision, slow down cutter wearing and tearing, the service life of cutter is prolonged.

The existing double-head internal cooling thread milling cutter still has the following defects:

the milling cutter mounting end of a conventional single-head thread milling cutter is connected with a milling machine cutter clamping component, the milling cutter mounting end is integrally regular, the milling cutter mounting end is not easy to deform when clamped and fixed by the milling machine cutter clamping component, and normal thread machining work is not influenced if slight deformation occurs.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide an interior cold thread milling cutter of double-end to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

A double-ended, internally-cooled thread mill comprising: a link mechanism; the threaded inner hole tool bits are fixedly arranged on two sides of the connecting rod mechanism; the protection mechanism is sleeved on the outer wall of the connecting rod mechanism, and is in sliding fit with the connecting rod mechanism; and the positioning and locking mechanism is arranged in the connecting rod mechanism in a penetrating manner and is connected with the protection mechanism, wherein the optimal proportion of the connection length of the threaded inner hole cutter head and the connecting rod mechanism to the length of the threaded inner hole cutter head is 3:2, and the positioning and locking mechanism is positioned on the central axis of the protection mechanism.

Preferably, the link mechanism includes: a thickening rod disposed within the guard mechanism; the adjusting groove is formed in the thickening rod; and the positioning grooves are arranged at two ends of the adjusting groove.

Preferably, the guard mechanism comprises: the clamping sleeve shell is sleeved on the outer wall of the thickening rod; at least one mounting nut fixedly arranged on the clamping sleeve shell; and the placing groove is arranged on the inner wall of the clamping sleeve shell and connected with the mounting nut.

Preferably, the position locking mechanism comprises: the first positioning bolt penetrates through the upper side of the thickening rod; the second positioning bolt penetrates through the lower side of the thickening rod; the first positioning bolt and the second positioning bolt are in inserted fit, and are in threaded connection with the protection mechanism; and the auxiliary locking pin is arranged on the outer walls of the middle ends of the first positioning bolt and the second positioning bolt, wherein the contact surface of the auxiliary locking pin and the thickening rod is in a round table shape.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a protection machanism's setting comes to carry out the slidable outside parcel protection to screw hole tool bit, and cold thread milling cutter installs in using in this double-end, comes to contact with milling machine cutter centre gripping subassembly through location locking mechanism and carries out clamping work, effectively avoids carrying out direct centre gripping contact to the one end screw hole tool bit that does not use to avoid appearing the condition of deformation, reduce the error problem that screw hole tool bit milling thread work size appears after the centre gripping.

2. The utility model discloses an adjustment tank comes spacing to protection machanism with location locking mechanism, is convenient for adjust quick slip parcel to the suitable position of the screw hole tool bit at both ends.

3. Make supplementary closure round pin inwards remove through rotatory first positioning bolt, second positioning bolt to with supplementary closure round table face and constant head tank contact, come to the thick pole block of adding after the regulation, make centre gripping cover shell and add to be connected between the thick pole, avoid the condition that not hard up skew appears in cold thread milling cutter work in this double-end, and utilize the round table face and the assorted standing groove of supplementary closure round pin, make supplementary closure round pin and add thick pole to carry out the location connection fast.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of the link mechanism of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the protection mechanism of the present invention;

FIG. 4 is a schematic view of the protective mechanism profile clamping mechanism of the present invention;

fig. 5 is a schematic perspective view of the positioning and locking mechanism of the present invention.

The reference numbers in the figures illustrate: 1. a link mechanism; 101. adding a thick rod; 102. an adjustment groove; 103. positioning a groove; 2. a threaded bore bit; 3. a protection mechanism; 301. a clamping sleeve shell; 302. mounting a nut; 303. a placement groove; 4. a positioning and locking mechanism; 401. a first positioning bolt; 402. a second positioning bolt; 403. an auxiliary locking pin.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a double-ended, internally-cooled thread mill comprising: a link mechanism 1; the threaded inner hole tool bits 2 are fixedly arranged on two sides of the connecting rod mechanism 1; the protection mechanism 3 is sleeved on the outer wall of the connecting rod mechanism 1, wherein the protection mechanism 3 is in sliding fit with the connecting rod mechanism 1; location locking mechanism 4 wears to locate and connects in protection machanism 3 in link mechanism 1, and wherein, threaded hole tool bit 2 is 3:2 with the preferred proportion of threaded hole tool bit 2 length with link mechanism 1 connection length, and location locking mechanism 4 is located protection machanism 3 axis, the utility model discloses a setting up of protection machanism 3 comes to carry out slidable outside parcel protection to threaded hole tool bit 2, and cold thread milling cutter installation in this double-end is used, comes to contact with milling machine cutter centre gripping subassembly through location locking mechanism 4 and carries out clamping work, effectively avoids carrying out direct centre gripping contact to unused one end threaded hole tool bit 2 to avoid appearing the condition of deformation, reduce the error problem that size appears in the milling thread work of centre gripping back threaded hole tool bit 2.

It is worth mentioning that the link mechanism 1 includes: a thickening rod 101 disposed in the protection mechanism 3; the adjusting groove 102 is formed in the thickening rod 101; and positioning grooves 103 disposed at both ends of the adjustment groove 102. The utility model discloses an adjustment tank 102 comes to spacing protection machanism 3 with location locking mechanism 4, is convenient for adjust quick slip parcel to the suitable position of the screw thread hole tool bit 2 at both ends.

Notably, the guard mechanism 3 includes: the clamping sleeve shell 301 is sleeved on the outer wall of the thickening rod 101; at least one mounting nut 302 fixedly arranged on the clamping sleeve shell 301; and a placement groove 303 opened on the inner wall of the clamping sleeve 301 and coupled to the mounting nut 302.

In addition, the positioning and locking mechanism 4 includes: a first positioning bolt 401 penetrating the upper side of the thickening rod 101; a second positioning bolt 402 passing through the lower side of the thickening rod 101; the first positioning bolt 401 is in plug fit with the second positioning bolt 402, wherein the first positioning bolt 401 and the second positioning bolt 402 are in threaded connection with the protection mechanism 3; and the auxiliary locking pin 403 is arranged on the outer walls of the middle ends of the first positioning bolt 401 and the second positioning bolt 402, wherein the contact surface of the auxiliary locking pin 403 and the thickening rod 101 is in a circular truncated cone shape. Make supplementary locking round pin 403 inwards remove through rotatory first positioning bolt 401, second positioning bolt 402 to contact supplementary locking round pin 403 mesa and constant head tank 103, come the thickened pole 101 block after adjusting, make and be connected between centre gripping cover shell 301 and the thickened pole 101, avoid the condition that not hard up skew appears in this double-end internal cooling thread milling cutter work, and utilize the round table face and the assorted standing groove 303 of supplementary locking round pin 403, make supplementary locking round pin 403 and thickened pole 101 carry out the location connection fast.

The working principle is as follows: firstly, the double-end internal cooling thread milling cutter is matched through a hexagon wrench tool, then a thread inner hole cutter head 2 which needs to be milled in a working mode is determined, a first positioning bolt 401 and a second positioning bolt 402 are rotated and loosened, an auxiliary locking pin 403 and a thickening rod 101 are separated and moved, the auxiliary locking pin 403 is located in a placing groove 303 at the moment, then a positioning locking mechanism 4 is manually rotated and slides to one side, so that the thread inner hole cutter head 2 which needs to be milled in a working mode at one end is exposed, meanwhile, a protection mechanism 3 is limited through an adjusting groove 102 and the positioning locking mechanism 4, the quick sliding and wrapping to the appropriate positions of the thread inner hole cutter heads 2 at two ends can be conveniently adjusted, and the thread inner hole cutter head 2 at the other end is wrapped and protected, the first positioning bolt 401 is rotated through a hexagonal wrench, the auxiliary locking pin 403 is moved inwards through the second positioning bolt 402, the round table surface of the auxiliary locking pin 403 is contacted with the positioning groove 103, the adjusted thickening rod 101 is clamped, the clamping sleeve shell 301 is connected with the thickening rod 101, the phenomenon that the double-head internal cooling thread milling cutter is loosened and deviated during working is avoided, the round table surface of the auxiliary locking pin 403 and the matched placing groove 303 are utilized, the auxiliary locking pin 403 is quickly positioned and connected with the thickening rod 101, finally the double-head internal cooling thread milling cutter is connected with the milling machine cutter clamping assembly, the milling machine cutter clamping assembly is clamped on the protection mechanism 3 at the moment, and the milling machine cutter clamping assembly is prevented from being contacted with the threaded inner hole cutter head 2.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A double-ended internally-cooled thread milling cutter, comprising:

a link mechanism (1);

the threaded inner hole tool bit (2) is fixedly arranged on two sides of the connecting rod mechanism (1);

the protective mechanism (3) is sleeved on the outer wall of the connecting rod mechanism (1),

wherein the protection mechanism (3) is in sliding fit with the connecting rod mechanism (1);

a positioning locking mechanism (4) which is arranged in the connecting rod mechanism (1) in a penetrating way and is connected with the protection mechanism (3),

wherein the ratio of the connection length of the threaded inner hole cutter head (2) and the connecting rod mechanism (1) to the length of the threaded inner hole cutter head (2) is 3:2,

and the positioning locking mechanism (4) is positioned on the axis of the protection mechanism (3).

2. The double-ended, internally cooled thread milling cutter according to claim 1, characterized in that the linkage mechanism (1) comprises:

a thickening rod (101) arranged inside the protection mechanism (3);

the adjusting groove (102) is formed in the thickening rod (101);

and positioning grooves (103) arranged at two ends of the adjusting groove (102).

3. The double-ended, internally cooled thread milling cutter according to claim 2, characterized in that said guard means (3) comprises:

the clamping sleeve shell (301) is sleeved on the outer wall of the thickening rod (101);

at least one mounting nut (302) fixedly arranged on the clamping sleeve shell (301);

a placement groove (303) which is opened on the inner wall of the clamping sleeve shell (301) and is connected with the mounting nut (302).

4. The double-ended, internally cooled thread milling cutter according to claim 3, wherein the locking means (4) comprises:

the first positioning bolt (401) penetrates through the upper side of the thickening rod (101);

the second positioning bolt (402) is arranged on the lower side of the thickening rod (101) in a penetrating mode;

wherein the first positioning bolt (401) is matched with the second positioning bolt (402) in an inserting way,

the first positioning bolt (401) and the second positioning bolt (402) are in threaded connection with the protection mechanism (3);

an auxiliary locking pin (403) arranged on the outer walls of the middle ends of the first positioning bolt (401) and the second positioning bolt (402),

the auxiliary locking pin (403) and the thickening rod (101) are in a circular truncated cone shape in a contact surface.