Split type thread milling cutter

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to a split type thread milling cutter, and aims to solve the problems that a cutter head of an existing thread milling cutter cannot be independently taken down for replacement and maintenance, a cutter bar is scrapped when cutter teeth are used to the limit, and the corresponding processing cost is very high. A plurality of anti-skid lines are arranged on the outer surface of the milling cutter handle, the front end of the milling cutter handle is connected with a milling mechanism used for machining a workpiece, and a heat dissipation mechanism used for dissipating heat of the milling cutter is arranged in the milling cutter handle; the milling mechanism comprises a milling cutter head; and the milling cutter head is arranged at the front end of a milling cutter handle. According to the utility model, the fixed screw on the milling cutter head is unscrewed, so that the fixed screw is separated from the fixed hole, the fixation of the milling cutter head is relieved, and the milling cutter head can be pulled under the matching of the connecting hole and the fixed rod, so that the milling cutter head can be taken down from the milling cutter handle and is convenient to replace independently.

Description

Technical Field

[0001] The utility model relates to a thread milling cutter, in particular to a split thread milling cutter, belonging to the technical field of milling cutters. Background Art

[0002] Thread milling primarily creates threads by micro-cutting between the teeth. The principle of thread milling is based on the three-axis interpolation capability of machining centers, which enables the interpolation of spatial helices. During thread milling, circular motion generates the thread diameter, while synchronized linear motion generates the pitch. The thread is completed with one complete tool rotation and one axial feed.

[0003] In the prior art, a thread milling cutter disclosed in announcement number CN210996924U includes a thread milling cutter body, a tool holder provided at the inner center of the thread milling cutter body, a bearing seat sleeved on the outer end of the tool holder, a sleeve plate provided at the inner center of the tool holder, a cutter body threadedly connected at the front end of the sleeve plate, a limit block threadedly connected at the rear end of the sleeve plate, a connecting frame fixedly connected at the bottom end of the limit block, a tool handle provided at the inner center of the cutter body, a threaded groove provided on the tool handle, and an outer plate provided at the inner bottom of the bearing seat. The bearing seat is installed to allow the cutter head to rotate, and when the outer plate rotates, it can drive the cutter head and the first baffle to rotate. When not in contact with the mold, the ball bearing in the center can help absorb stress and transmit it through the rotational force to achieve idling protection.

[0004] In the above technical solution, the ball bearing in the center can help absorb stress and transmit it through rotational force to achieve idling protection. However, the thread milling cutter head cannot be removed separately for replacement and maintenance. When the teeth are used to the limit, the cutter rod will also be scrapped, and the corresponding processing cost is very high. In view of this, a split thread milling cutter is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides a split thread milling cutter to solve the problem that the cutter head of the thread milling cutter cannot be removed separately for replacement and maintenance, the cutter rod is scrapped when the cutter teeth are used to the limit, and the corresponding processing cost is very high.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a split thread milling cutter, comprising a milling cutter handle, the outer surface of the milling cutter handle is provided with a plurality of anti-slip grooves, the front end of the milling cutter handle is connected to a milling mechanism for processing a workpiece, and the interior of the milling cutter handle is provided with a heat dissipation mechanism for dissipating heat from the milling cutter;

[0007] The milling mechanism includes a milling cutter head, which is placed at the front end of the milling cutter handle. A connecting hole is provided inside the milling cutter head, and a fixing rod is plugged into the inside of the connecting hole. Three fixing holes are provided on the upper surface of the fixing rod, and the insides of the three fixing holes are all plugged into fixing screws threadedly connected to the milling cutter head.

[0008] As a further solution of the present invention: the outer wall of the milling cutter head is symmetrically provided with four chip removal grooves.

[0009] As a further solution of the present invention: a sealing groove is provided inside one end of the milling cutter handle, and a sealing gasket is plugged and connected inside the sealing groove.

[0010] As a further solution of the present invention: the heat dissipation mechanism includes a liquid storage cavity, and the liquid storage cavity is opened inside the milling cutter handle.

[0011] As a further solution of the present invention: a heat-conducting block fixedly connected to the fixing rod is installed inside the liquid storage chamber.

[0012] As a further solution of the present invention: two groups of heat-conducting rods are passed through the inner wall of the liquid storage cavity, and the ends of the two groups of heat-conducting rods are fixed with heat-conducting rings sleeved on the milling cutter handle.

[0013] As a further solution of the present invention: three heat sinks are fixed on the outer surface of the heat conducting ring.

[0014] The beneficial effect of the utility model is that the fixing screw on the milling cutter head is unscrewed, so that the fixing screw and the fixing hole are separated, and the fixation of the milling cutter head is released. Under the cooperation of the connecting hole and the fixing rod, the milling cutter head can be pulled, and then the milling cutter head can be removed from the milling cutter handle, so that it is convenient to replace it separately.

[0015] The heat in the heat exchange fluid is absorbed again by the heat conducting rod and transferred to the heat conducting ring. The high-speed rotation of the milling cutter handle drives the heat sink to rotate, and then the heat absorbed by the heat conducting ring and dissipated by air ventilation, achieving the effect of active heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the milling cutter handle of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the milling cutter handle of the utility model;

[0019] Figure 4 For this utility model Figure 1Enlarged view of point A in the middle.

[0020] In the figure: 1. Milling cutter handle; 2. Anti-slip pattern; 3. Milling cutter head; 31. Connecting hole; 32. Fixing rod; 33. Fixing hole; 34. Fixing screw; 4. Chip groove; 5. Sealing groove; 6. Sealing gasket; 7. Liquid storage chamber; 71. Heat transfer block; 72. Heat transfer rod; 73. Heat transfer ring; 74. Heat sink. DETAILED DESCRIPTION

[0021] 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

[0022] like Figures 1 to 4 As shown, a split thread milling cutter includes a milling cutter handle 1, the outer surface of the milling cutter handle 1 is provided with a plurality of anti-slip grooves 2, the front end of the milling cutter handle 1 is connected to a milling mechanism for processing a workpiece, and the interior of the milling cutter handle 1 is provided with a heat dissipation mechanism for dissipating heat from the milling cutter;

[0023] The milling mechanism includes a milling cutter head 3, which is placed at the front end of the milling cutter handle 1. A connecting hole 31 is provided inside the milling cutter head 3, and a fixing rod 32 is connected to the inside of the connecting hole 31. Three fixing holes 33 are provided on the upper surface of the fixing rod 32. The insides of the three fixing holes 33 are all connected to fixing screws 34 threadedly connected to the milling cutter head 3. Four chip removal grooves 4 are symmetrically provided on the outer wall of the milling cutter head 3. A sealing groove 5 is provided inside one end of the milling cutter handle 1, and a sealing gasket 6 is connected to the inside of the sealing groove 5. The milling cutter handle 1 is driven to rotate by the device, and then the milling cutter head 3 is driven to rotate. The workpiece is processed, and the waste chips generated by the workpiece processing can be discharged to the outside through the chip discharge groove 4 on the milling head 3. When the milling head 3 is worn and needs to be replaced, the fixing screw 34 on the milling head 3 can be unscrewed to separate the fixing screw 34 and the fixing hole 33, thereby releasing the fixation of the milling head 3. With the cooperation of the connecting hole 31 and the fixing rod 32, the milling head 3 can be pulled, and then the milling head 3 can be removed from the milling cutter shank 1, which is convenient for separate replacement. The sealing groove 5 and the sealing gasket 6 set can play a sealing role to ensure the sealing effect between the milling head 3 and the milling cutter shank 1. Example 2

[0024] In addition to all the technical features of Example 1, this embodiment also includes: the heat dissipation mechanism includes a liquid storage chamber 7, which is opened inside the milling cutter handle 1, and a heat-conducting block 71 fixedly connected to the fixed rod 32 is installed inside the liquid storage chamber 7. Two groups of heat-conducting rods 72 are passed through the inner wall of the liquid storage chamber 7. The ends of the two groups of heat-conducting rods 72 are fixed with heat-conducting rings 73 sleeved on the milling cutter handle 1, and three heat sinks 74 are fixed on the outer surface of the heat-conducting ring 73. The heat generated when the milling cutter head 3 processes the workpiece is transferred to the heat-conducting block 71 through the fixed rod 32, and the heat exchange fluid is stored in the liquid storage chamber 7, so that the heat is absorbed by the heat exchange fluid, and the heat-conducting rods 72 absorb the heat in the heat exchange fluid again and transfer the heat to the heat-conducting ring 73. The high-speed rotation of the milling cutter handle 1 drives the heat sink 74 to rotate, and then the heat absorption of the heat-conducting ring 73 and air ventilation are used for heat dissipation, thereby achieving the effect of active heat dissipation and improving practicality.

[0025] Working principle: Before using the split thread milling cutter, first connect and fix the milling cutter shank 1 of the milling cutter and the output shaft of the driving device. The anti-slip grooves 2 set on the milling cutter shank 1 can play an anti-slip role, thereby reducing the slippage of the milling cutter shank 1 and the output shaft of the driving device. The milling cutter shank 1 is driven by the equipment to rotate, and then the milling head 3 is driven to rotate to process the workpiece. The waste chips generated by the workpiece processing can be discharged to the outside through the chip groove 4 on the milling head 3. The heat generated by the milling head 3 when processing the workpiece is transferred to the heat conduction block 71 through the fixed rod 32. The heat exchange fluid is stored in the liquid storage chamber 7, so that the heat is absorbed by the heat exchange fluid, and the heat conduction rod 72 absorbs the heat in the heat exchange fluid again. , the heat is transferred to the heat conducting ring 73, and the high-speed rotation of the milling cutter handle 1 drives the heat sink 74 to rotate, thereby absorbing the heat of the heat conducting ring 73 and the air collision wind for heat dissipation, achieving the effect of active heat dissipation and improving practicality. When the milling cutter head 3 is worn and needs to be replaced, the fixing screw 34 on the milling cutter head 3 can be unscrewed, so that the fixing screw 34 and the fixing hole 33 are separated, and the fixation of the milling cutter head 3 is released. With the cooperation of the connecting hole 31 and the fixing rod 32, the milling cutter head 3 can be pulled, and then the milling cutter head 3 can be removed from the milling cutter handle 1, which is convenient for separate replacement. The sealing groove 5 and the sealing gasket 6 provided can play a sealing role to ensure the sealing effect between the milling cutter head 3 and the milling cutter handle 1.

[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 split thread milling cutter, comprising a milling cutter handle (1), characterized in that: The outer surface of the milling cutter shank (1) is provided with a plurality of anti-slip grooves (2); the front end of the milling cutter shank (1) is connected to a milling mechanism for processing a workpiece; the interior of the milling cutter shank (1) is provided with a heat dissipation mechanism for dissipating heat from the milling cutter; The milling mechanism comprises a milling cutter head (3), the milling cutter head (3) being arranged at the front end of a milling cutter shank (1), a connecting hole (31) being provided inside the milling cutter head (3), a fixing rod (32) being plugged into and connected to the inside of the connecting hole (31), three fixing holes (33) being provided on the upper surface of the fixing rod (32), and fixing screws (34) being threadedly connected to the milling cutter head (3) being plugged into and connected to the inside of the three fixing holes (33).

2. A split thread milling cutter according to claim 1, characterized in that: Four chip removal grooves (4) are symmetrically formed on the outer wall of the milling cutter head (3).

3. The split thread milling cutter according to claim 1, characterized in that: A sealing groove (5) is provided inside one end of the milling cutter handle (1), and a sealing gasket (6) is plugged and connected inside the sealing groove (5).

4. The split thread milling cutter according to claim 1, characterized in that: The heat dissipation mechanism comprises a liquid storage cavity (7), and the liquid storage cavity (7) is opened inside the milling cutter handle (1).

5. The split thread milling cutter according to claim 4, characterized in that: A heat conducting block (71) fixedly connected to the fixing rod (32) is installed inside the liquid storage cavity (7).

6. The split thread milling cutter according to claim 5, characterized in that: Two groups of heat-conducting rods (72) are passed through the inner wall of the liquid storage cavity (7), and heat-conducting rings (73) sleeved on the milling cutter handle (1) are fixed to the ends of the two groups of heat-conducting rods (72).

7. The split thread milling cutter according to claim 6, characterized in that: Three heat sinks (74) are fixed on the outer surface of the heat conducting ring (73).

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