Taper thread milling cutter with internal cooling structure

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to a taper thread milling cutter with an internal cooling structure, and provides the following scheme aiming at the problem that an existing taper thread milling cutter and a clamping end of a machine tool form influence: the taper thread milling cutter comprises a clamping rod, a cutter bar is fixed at the bottom end of the clamping rod, and a cutter head is connected below the cutter bar; a guide mechanism is arranged on the outer wall of the cutter bar; the upper limiting ring and the lower limiting ring are fixed to the cutter bar, the material storage shell stably rotates through the through hole, cooling liquid is stored in the material storage shell, the situation that the position of the inlet end of the cooling liquid is consistent with the position of the clamping rod can be avoided, mutual influence is avoided, and the cooling liquid can be conveniently stored. Cooling liquid enters the guide grooves through the feeding port and flows out through the discharging port, the cooling effect can be achieved, the quality problem caused by overheat of a drill bit is avoided, the two guide grooves are formed so that the cooling range can be widened, and the poor cooling effect after the thickness of a cutter bar is avoided.

Description

Technical Field

[0001] The utility model relates to a tapered thread milling cutter, in particular to a tapered thread milling cutter with an internal cooling structure, belonging to the technical field of milling cutters. Background Art

[0002] The main thread processing methods are to use thread turning tools to turn threads or to use taps and dies for manual tapping and thread cutting. With the development of CNC processing technology, a more advanced thread processing method, CNC milling of threads, has been realized. Compared with traditional thread processing methods, thread milling has great advantages in processing accuracy and efficiency. It is not restricted by thread structure and thread rotation direction during processing. It can process internal and external threads of various rotation directions. Threads with transition buckles or tool relief groove structures are not allowed. It is difficult to process them using traditional turning methods or taps and dies, but it is very easy to achieve using CNC milling.

[0003] In the prior art, a tapered thread milling cutter with an internal cooling structure disclosed in announcement number CN215698603U transports coolant into a flow structure through a liquid inlet structure, and the coolant flows in an S shape in the flow structure to cool the inside of the output end of the milling cutter body. The coolant in the flow structure is discharged through the discharge structure to cool the surface of the output end of the milling cutter body, and the cooling effect is good. At the same time, the discharged coolant can drive the debris to be discharged quickly.

[0004] However, in the implementation of relevant technologies, it was found that the tapered thread milling cutter with an internal cooling structure of the above-mentioned design has the following problems: although the existing technology can achieve an internal cooling effect through the cooperation of components such as the liquid inlet mechanism, in actual use, the coolant inlet and the machine tool clamping end of the milling cutter are at one end, which may cause the feed pipe to affect the machine tool clamping end, affecting the rotation of the milling cutter or causing the stability of the feed pipe. In view of this, a tapered thread milling cutter with an internal cooling structure is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a tapered thread milling cutter with an internal cooling structure to solve the problem that the feeding pipe may affect the clamping end of the machine tool, thereby affecting the rotation of the milling cutter or causing the stability of the feeding pipe.

[0006] The utility model achieves the above-mentioned object through the following technical solutions: a tapered thread milling cutter with an internal cooling structure, comprising a clamping rod, a tool rod is fixed to the bottom end of the clamping rod, a tool head is connected below the tool rod, and a guide mechanism is provided on the outer wall of the tool rod;

[0007] The guiding mechanism includes an upper limit ring, which is fixed above the outer wall of the knife rod, and a lower limit ring is provided below the outer wall of the knife rod. The outer part of the upper limit ring is provided with a storage shell, and the top and bottom ends of the storage shell are provided with through holes. The outer wall of the knife rod at one end of the storage shell is provided with a feed port, and a guide groove is connected to one side of the feed port, and the outer wall of the cutter head is provided with a discharge port corresponding to the guide groove.

[0008] As a further solution of the present invention: the upper limit ring passes through the interior of the material storage shell through the through hole, and a rotating structure is formed between the upper limit ring and the material storage shell.

[0009] As a further solution of the present invention: the feed port is communicated with the guide groove, and the guide groove is communicated with the discharge port.

[0010] As a further solution of the present invention: a pouring port is provided on one side of the through hole at the top end of the storage shell, and a feeding mechanism is provided inside the pouring port.

[0011] As a further solution of the present invention: the feeding mechanism includes a movable sleeve, the movable sleeve passes through the interior of the filling port, and the lower part of the movable sleeve is connected to a connecting sleeve, and the inner bottom end of the connecting sleeve is embedded with a filter screen.

[0012] As a further solution of the present invention: the feeding mechanism also includes a delivery pipe, the delivery pipe passes through the upper part of the interior of the movable sleeve, and a blocking ring is fixed to the outer wall of one end of the delivery pipe that passes through the movable sleeve, and a receiving pipe is fixed to the other end of the delivery pipe.

[0013] As a further solution of the present invention: the movable sleeve is threadedly connected to the connecting sleeve, and a sliding structure is formed between the movable sleeve and the delivery pipe.

[0014] The beneficial effects of the present invention are: first, the upper limit ring and the lower limit ring that fix the tool rod allow the storage shell to rotate stably through the through hole, and the coolant is collected by the storage shell, which can avoid the coolant entry end and the clamping rod from being in the same position, avoiding mutual influence, and the coolant enters the guide groove through the feed port and flows out through the discharge port, which can have a cooling effect to avoid quality problems caused by overheating of the drill bit, and the two guide grooves are set to increase the cooling range, avoiding poor cooling effect after the tool rod thickness exceeds.

[0015] The movable sleeve slides along the conveying pipe and penetrates the filling port to limit the storage shell. At the same time, the coolant is conveyed into the receiving pipe. The blocking ring prevents the movable sleeve from sliding excessively and detaching. The connecting sleeve is threadedly connected to the bottom end of the movable sleeve and filters the coolant through the embedded filter. The threaded connection facilitates the disassembly and assembly of the connecting sleeve for cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the upper limit ring structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the storage shell structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the planar structure of the guide groove of the utility model;

[0020] Figure 5 This is a schematic diagram of the filter structure of the utility model.

[0021] In the figure: 1. Clamping rod; 2. Knife rod; 3. Knife head; 4. Guide mechanism; 401. Upper limit ring; 402. Lower limit ring; 403. Through hole; 404. Storage shell; 405. Feed port; 406. Guide groove; 407. Discharge port; 5. Filling port; 6. Feeding mechanism; 601. Movable sleeve; 602. Connecting sleeve; 603. Filter screen; 604. Delivery pipe; 605. Blocking ring; 606. Receiver pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0023] like Figures 1 to 5As shown, a tapered thread milling cutter with an internal cooling structure includes a clamping rod 1, a tool rod 2 is fixed to the bottom end of the clamping rod 1, a cutter head 3 is connected to the bottom of the tool rod 2, and a guide mechanism 4 is provided on the outer wall of the tool rod 2; the guide mechanism 4 includes an upper limit ring 401, the upper limit ring 401 is fixed on the upper outer wall of the tool rod 2, a lower limit ring 402 is sleeved on the lower outer wall of the tool rod 2, a storage shell 404 is sleeved on the outer side of the upper limit ring 401, and the top and bottom ends of the storage shell 404 are provided with through holes 403, a feed port 405 is provided on the outer wall of the tool rod 2 at one end of the storage shell 404, a guide groove 406 is connected to one side of the feed port 405, and a discharge port 407 is provided on the outer wall of the cutter head 3 corresponding to the guide groove 406. The through hole 403 passes through the interior of the storage shell 404, and a rotating structure is formed between the upper limit ring 401 and the storage shell 404, the feed port 405 is communicated with the guide groove 406, and the guide groove 406 is communicated with the discharge port 407; first, the upper limit ring 401 and the lower limit ring 402 fixed to the tool rod 2 allow the storage shell 404 to rotate stably through the through hole 403, and the storage shell 404 is used to store the coolant, which can avoid the coolant inlet end and the clamping rod 1 from being in the same position, thereby avoiding mutual influence, and the coolant enters the guide groove 406 through the feed port 405 and flows out through the discharge port 407, which can have a cooling effect to avoid quality problems caused by overheating of the drill bit, and two guide grooves 406 are provided to increase the cooling range to avoid poor cooling effect after the thickness of the tool rod 2 is exceeded. Example 2

[0024] In addition to all the technical features of the first embodiment, the present embodiment also includes: a filling port 5 is provided on one side of the through hole 403 at the top of the storage shell 404, a feeding mechanism 6 is provided inside the filling port 5, the feeding mechanism 6 includes a movable sleeve 601, the movable sleeve 601 passes through the interior of the filling port 5, a connecting sleeve 602 is connected to the lower part of the interior of the movable sleeve 601, a filter screen 603 is embedded in the inner bottom end of the connecting sleeve 602, the feeding mechanism 6 also includes a delivery pipe 604, the delivery pipe 604 passes through the upper part of the interior of the movable sleeve 601, and a blocking ring is fixed to the outer wall of one end of the delivery pipe 604 that passes through the movable sleeve 601. 605, the other end of the delivery pipe 604 is fixed with a receiving pipe 606, the movable sleeve 601 is threadedly connected to the connecting sleeve 602, and a sliding structure is formed between the movable sleeve 601 and the delivery pipe 604; the movable sleeve 601 slides along the delivery pipe 604 to penetrate the filling port 5, limit the storage shell 404, and at the same time, the coolant is delivered in through the receiving pipe 606, and the blocking ring 605 prevents the movable sleeve 601 from sliding excessively and disengaging. The connecting sleeve 602 is threadedly connected to the bottom end of the movable sleeve 601, and the coolant is filtered through the embedded filter screen 603. The threaded connection facilitates the disassembly and assembly of the connecting sleeve 602 for disassembly, cleaning and maintenance.

[0025] Working principle: The milling cutter body is composed of a clamping rod 1, a tool bar 2 and a cutter head 3. The clamping rod 1 is used to connect with the clamping end of the machine tool. The storage shell 404 is used to store coolant. At the same time, the tool bar 2 passes through the upper limit ring 401 and the lower limit ring 402 and rotates inside the storage shell 404 through the through hole 403, thereby avoiding mutual influence with the clamping end and the feeding mechanism 6. The coolant enters the guide groove 406 through the feed port 405. Two guide grooves 406 are set without affecting the hardness of the milling cutter, and The coolant is guided to be discharged through the discharge port 407, and the cooling effect is improved through the two guide grooves 406. The receiving pipe 606 is connected to the coolant feeding equipment, and the coolant is transported into the movable sleeve 601 through the delivery pipe 604. The blocking ring 605 is used to limit the movable sleeve 601 to facilitate the insertion and exit of the filling port 5, so as to quickly disassemble and assemble with the storage shell 404. The connecting sleeve 602 threadedly connected to the movable sleeve 601 is provided with a filter screen 603 for filtering, and the threaded connection facilitates disassembly and assembly for cleaning and maintenance.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tapered thread milling cutter with an internal cooling structure, comprising a clamping rod (1), characterized in that: A knife rod (2) is fixed to the bottom end of the clamping rod (1), and a knife head (3) is connected below the knife rod (2), and a guide mechanism (4) is provided on the outer wall of the knife rod (2); The guiding mechanism (4) comprises an upper limit ring (401), the upper limit ring (401) being fixed above the outer wall of the knife rod (2), and a lower limit ring (402) being sleeved below the outer wall of the knife rod (2), a material storage shell (404) being sleeved on the outside of the upper limit ring (401), and a through hole (403) being provided at the top and bottom ends of the material storage shell (404), an outer wall of the knife rod (2) at one end of the material storage shell (404) being provided with a material feed port (405), and a guide groove (406) being connected to one side of the material feed port (405), and a material discharge port (407) being provided at a position on the outer wall of the knife head (3) corresponding to the guide groove (406).

2. The tapered thread milling cutter with an internal cooling structure according to claim 1, characterized in that: The upper limit ring (401) passes through the through hole (403) to the interior of the material storage shell (404), and a rotating structure is formed between the upper limit ring (401) and the material storage shell (404).

3. The tapered thread milling cutter with an internal cooling structure according to claim 1, characterized in that: The feed port (405) is in communication with the guide groove (406), and the guide groove (406) is in communication with the discharge port (407).

4. The tapered thread milling cutter with an internal cooling structure according to claim 1, characterized in that: A pouring port (5) is provided on one side of the through hole (403) at the top end of the storage shell (404), and a feeding mechanism (6) is provided inside the pouring port (5).

5. The tapered thread milling cutter with an internal cooling structure according to claim 4, characterized in that: The feeding mechanism (6) comprises a movable sleeve (601), the movable sleeve (601) passes through the interior of the filling port (5), and a connecting sleeve (602) is connected to the lower interior of the movable sleeve (601), and a filter screen (603) is embedded in the inner bottom end of the connecting sleeve (602).

6. The tapered thread milling cutter with an internal cooling structure according to claim 5, characterized in that: The feeding mechanism (6) further comprises a delivery pipe (604), the delivery pipe (604) passing through the upper interior of the movable sleeve (601), and a blocking ring (605) is fixed to the outer wall of one end of the delivery pipe (604) passing through the movable sleeve (601), and a receiving pipe (606) is fixed to the other end of the delivery pipe (604).

7. The tapered thread milling cutter with an internal cooling structure according to claim 6, characterized in that: The movable sleeve (601) is threadedly connected to the connecting sleeve (602), and a sliding structure is formed between the movable sleeve (601) and the delivery pipe (604).

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