High speed single start thread milling cutter with in-process cooling channel

Abstract

The utility model discloses a high -speed single tooth thread milling cutter of taking in -cold passageway, including bracing plate, support seat, linkage seat, butt joint cylinder, thread milling cutter and reciprocating feed mechanism, support seat is fixed on bracing plate, is provided with the notched in the support seat on the penetration, linkage seat sliding joint is in the notched, butt joint cylinder is fixed in linkage seat one side, thread milling cutter is connected and is locked in butt joint cylinder. In the utility model through setting reciprocating feed mechanism, and then through two driven gears intermeshing, realize double screw rod synchronous reverse rotation, and through the setting of baffle make passive board can rotate under the spacing action of baffle direction, and through spring pull adjusting plate rotation, and then through the dolly linkage lever rotation, make the abutment plate of corresponding position and screw thread cooperation, and then realize milling cutter linkage component automatic switching feed direction, eliminate motor frequent positive and negative rotation demand, reduce motor loss rate and reduce the dependence on high -priced bidirectional motor.

Description

Technical Field

[0001] This utility model relates to a thread milling cutter, specifically a high-speed single-tooth thread milling cutter with an internal cooling channel, belonging to the field of thread milling cutter technology. Background Technology

[0002] Thread milling cutters are one of the commonly used cutting tools in CNC machine tool processing. They are mainly used to process helical grooves and end face grooves on cylindrical or conical surfaces. They have advantages such as strong cutting force, small chip deformation, and large chip space, which can significantly improve production efficiency. There are many types of thread milling cutters. For example, single-tooth thread milling cutters can greatly increase the depth of thread processing due to the reduction of cutting force. The effective cutting depth of the tool can reach 3 to 4 times the diameter of the tool body. Therefore, they are also widely used in deep hole processing operations in many fields.

[0003] However, most existing single-tooth thread milling cutters have various problems. For example, in a thread milling cutter disclosed in publication number CN222002110U, although it can perform more effective grinding on the cutting part, enhance the grinding effect on the thread, make the thread surface smoother, have higher surface finish, better thread retention, and reduce the workload of subsequent polishing processes, in this technical solution and most current thread milling cutters, during milling, the traditional tool needs to complete the thread forming through the reciprocating feed motion of the workpiece or the tool. This processing method requires the drive component (such as the lead screw) to frequently reverse forward and reverse to achieve reciprocating feed, resulting in the motor being in a high-load state of starting, stopping, and reversing for a long time, accelerating the wear of the motor windings and commutator, significantly shortening the equipment life, and the frequent reversing increases the non-cutting time and reduces the processing efficiency, which is especially prominent in mass production. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a high-speed single-tooth thread milling cutter with an internal cooling channel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-speed single-tooth thread cutter with an internal cooling channel includes a support plate, a support seat, a linkage seat, a docking cylinder, a thread cutter, and a reciprocating feed mechanism. The support seat is fixed on the support plate and has a through slot. The linkage seat is slidably engaged in the slot. The docking cylinder is fixed on one side of the linkage seat. The thread cutter is connected and locked in the docking cylinder. The reciprocating feed mechanism is disposed between the support plate and the support seat.

[0007] The reciprocating feed mechanism includes a lead screw, a driven gear, a linkage rod, a stop plate, and an adjustment unit. The lead screw is rotatably connected to the support plate, and two lead screws are arranged side by side. The driven gear is coaxially fixed to one end of the lead screw, and two adjacent driven gears mesh with each other. One end of the linkage rod is rotatably connected to the side wall of the linkage seat. The stop plate is fixed to the other end of the linkage rod, and two stop plates are symmetrically arranged. The stop plate is provided with an arc-shaped threaded groove, and the stop plate is threadedly engaged with the lead screw through the threaded groove.

[0008] As a further embodiment of this utility model: the adjustment unit includes an adjustment plate and a lever plate. One end of the adjustment plate is rotatably connected to the side wall of the linkage seat. The lever plate is fixed at the edge of the rotating end of the adjustment plate, and a protrusion is provided at the edge of the rotating end of the linkage rod, and the protrusion is slidably engaged in the groove of the lever plate.

[0009] As a further embodiment of this utility model: the adjustment unit further includes a passive plate and a spring, one end of the passive plate is rotatably connected to the rotatable connection end of the adjustment plate and the linkage seat, and the spring is disposed between the ends of the adjustment plate and the passive plate that are far apart from each other.

[0010] As a further embodiment of this utility model: the adjustment unit also includes a stop block, and a strip-shaped groove is provided on the side wall of the support. The stop block is slidably engaged in the strip-shaped groove, and two are symmetrically arranged. The two stop blocks are connected to the support in an adjustable position by screws, and the passive plate is located between two adjacent stop blocks.

[0011] As a further embodiment of this utility model: a drive gear is rotatably connected to one side of the bottom of the support plate, the drive gear meshes with one of the driven gears, and the drive gear is coaxially fixed with an external drive device.

[0012] As a further improvement of this utility model: a water injection pipe is fixed on the shank of the thread milling cutter, and an internal cooling channel is provided inside the thread milling cutter, wherein the water injection pipe is connected to the internal cooling channel.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, a reciprocating feed mechanism is set up, and two driven gears mesh with each other to achieve synchronous reverse rotation of the double lead screws. The setting of the stop allows the passive plate to rotate under the limiting action of the stop. The spring pulls the adjustment plate to rotate, and then the lever drives the linkage rod to rotate, so that the abutment plate at the corresponding position engages with the lead screw thread. This realizes the automatic switching of the feed direction of the milling cutter linkage component, eliminating the need for frequent forward and reverse rotation of the motor, reducing the motor loss rate and reducing the dependence on expensive bidirectional motors. At the same time, the mechanical direction switching has a faster response than the traditional motor commutation, reducing non-cutting time. It is economical and practical, and also greatly improves milling efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the reciprocating feed mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the linkage seat and its overall connection structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the thread milling cutter structure of this utility model.

[0019] In the diagram: 1. Support plate, 2. Support seat, 3. Linkage seat, 4. Connecting cylinder, 5. Thread milling cutter, 6. Reciprocating feed mechanism, 61. Lead screw, 62. Driven gear, 63. Linkage rod, 64. Abutment plate, 65. Adjusting plate, 66. Paddle plate, 67. Passive plate, 68. Spring, 69. Stop block, 610. Drive gear, 7. Water injection pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] like Figures 1 to 4 As shown, a high-speed single-tooth thread cutter with an internal cooling channel includes a support plate 1, a support seat 2, a linkage seat 3, a docking cylinder 4, a thread cutter 5, and a reciprocating feed mechanism 6. The support seat 2 is fixed on the support plate 1, and a slot is provided through the support seat 2. The linkage seat 3 is slidably engaged in the slot. The docking cylinder 4 is fixed on one side of the linkage seat 3. The thread cutter 5 is connected and locked in the docking cylinder 4. The reciprocating feed mechanism 6 is arranged between the support plate 1 and the support seat 2.

[0022] The reciprocating feed mechanism 6 includes a lead screw 61, a driven gear 62, a linkage rod 63, a contact plate 64, and an adjustment unit. The lead screw 61 is rotatably connected to the support plate 1, and two of them are arranged side by side. The driven gear 62 is coaxially fixed to one end of the lead screw 61, and two adjacent driven gears 62 mesh with each other. One end of the linkage rod 63 is rotatably connected to the side wall of the linkage seat 3. The contact plate 64 is fixed to the other end of the linkage rod 63, and two of them are arranged symmetrically. An arc-shaped threaded groove is provided on the contact plate 64, and the contact plate 64 is threadedly engaged with the lead screw 61 through the threaded groove.

[0023] The adjustment unit includes an adjustment plate 65 and a lever 66. One end of the adjustment plate 65 is rotatably connected to the side wall of the linkage seat 3. The lever 66 is fixed at the edge of the rotating end of the adjustment plate 65, and a protrusion is provided at the edge of the rotating end of the linkage rod 63. The protrusion is slidably engaged in the groove of the lever 66.

[0024] The adjustment unit also includes a passive plate 67 and a spring 68. One end of the passive plate 67 is rotatably connected to the adjustment plate 65 and the rotatable connection end of the linkage seat 3. The spring 68 is disposed between the ends of the adjustment plate 65 and the passive plate 67 that are far apart from each other.

[0025] The adjustment unit also includes a stop block 69. A strip-shaped slot is provided on the side wall of the support 2. The stop block 69 is slidably engaged in the strip-shaped slot, and two are symmetrically arranged. The two stop blocks 69 are connected to the support 2 in an adjustable position by screws. The passive plate 67 is located between the two adjacent stop blocks 69.

[0026] In this invention, a reciprocating feed mechanism 6 is provided, and two driven gears 62 mesh with each other to achieve synchronous reverse rotation of the double lead screws. The passive plate 67 can rotate under the limiting action of the stop block 69, and the adjusting plate 65 is pulled by the spring 68 to rotate. In turn, the linkage rod 63 is driven to rotate by the lever plate 66, so that the abutment plate 64 at the corresponding position is threaded with the lead screw 61. This realizes the automatic switching of the feed direction of the milling cutter linkage component, eliminating the need for frequent forward and reverse rotation of the motor, reducing the motor loss rate and reducing the dependence on expensive bidirectional motors. At the same time, the mechanical direction switching is faster than the traditional motor commutation response, reducing non-cutting time. It is economical and practical, and also greatly improves milling efficiency. Example 2

[0027] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0028] A drive gear 610 is rotatably connected to one side of the bottom of the support plate 1. The drive gear 610 meshes with one of the driven gears 62, and the drive gear 610 is coaxially fixed with the external drive device. The drive gear 610 drives one of the driven gears 62 to mesh and link together, thereby enabling two adjacent driven gears 62 to drive the lead screw 61 to rotate synchronously in opposite directions.

[0029] A water injection pipe 7 is fixed on the shank of the thread milling cutter 5, and an internal cooling channel is provided inside the thread milling cutter 5. The water injection pipe 7 is connected to the internal cooling channel. The water injection pipe 7 allows external coolant to be quickly injected into the thread milling cutter 5, and the internal cooling channel achieves a rapid cooling effect on the thread milling cutter 5.

[0030] Working principle: When using this thread milling cutter, first fix the thread milling cutter 5 inside the docking cylinder 4, then fix the drive gear 610 coaxially with the external drive device, and drive the driven gear 62 to mesh and link through the drive gear 610. At this time, the two lead screws 61 rotate synchronously in opposite directions, and the abutment plate 64 is threadedly engaged with one of the lead screws 61, which drives the linkage seat 3 and the thread milling cutter 5 to make axial feed motion as a whole. When moving, the passive plate 67 abuts and rotates with the stop block 69. At this time, the spring 68 pulls the adjusting plate 65 to rotate, and drives the linkage rod 63 to rotate through the lever plate 66, so that the other abutment plate 64 meshes with the other lead screw 61. At this time, the linkage seat 3 and the thread milling cutter 5 can move in opposite directions as a whole.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed single-tooth thread cutter with an internal cooling channel, comprising a support plate (1), a support seat (2), a linkage seat (3), a connecting sleeve (4), a thread cutter (5), and a reciprocating feed mechanism (6), characterized in that, The support seat (2) is fixed on the support plate (1). A slot is provided through the support seat (2). The linkage seat (3) is slidably engaged in the slot. The docking cylinder (4) is fixed on one side of the linkage seat (3). The thread milling cutter (5) is connected and locked in the docking cylinder (4). The reciprocating feed mechanism (6) is arranged between the support plate (1) and the support seat (2). The reciprocating feed mechanism (6) includes a lead screw (61), a driven gear (62), a linkage rod (63), abutment plate (64), and an adjustment unit. The lead screw (61) is rotatably connected to the support plate (1), and two of them are arranged side by side. The driven gear (62) is coaxially fixed to one end of the lead screw (61), and two adjacent driven gears (62) mesh with each other. One end of the linkage rod (63) is rotatably connected to the side wall of the linkage seat (3). The abutment plate (64) is fixed to the other end of the linkage rod (63), and two of them are symmetrically arranged. An arc-shaped threaded groove is provided on the abutment plate (64), and the abutment plate (64) is threadedly engaged with the lead screw (61) through the threaded groove.

2. A high-speed single-tooth thread milling cutter with an internal cooling channel according to claim 1, characterized in that: The adjustment unit includes an adjustment plate (65) and a lever (66). One end of the adjustment plate (65) is rotatably connected to the side wall of the linkage seat (3). The lever (66) is fixed at the edge of the rotating end of the adjustment plate (65), and a protrusion is provided at the edge of the rotating end of the linkage rod (63), and the protrusion is slidably engaged in the groove of the lever (66).

3. A high-speed single-tooth thread milling cutter with an internal cooling channel according to claim 2, characterized in that: The adjustment unit also includes a passive plate (67) and a spring (68). One end of the passive plate (67) is rotatably connected to the rotating connection end of the adjustment plate (65) and the linkage seat (3). The spring (68) is disposed between the ends of the adjustment plate (65) and the passive plate (67) that are far apart from each other.

4. A high-speed single-tooth thread milling cutter with an internal cooling channel according to claim 3, characterized in that: The adjustment unit also includes a stop block (69). A strip groove is provided on the side wall of the support (2). The stop block (69) is slidably engaged in the strip groove, and two are symmetrically arranged. The two stop blocks (69) are connected to the support (2) in an adjustable position by screws. The passive plate (67) is located between two adjacent stop blocks (69).

5. A high-speed single-tooth thread milling cutter with an internal cooling channel according to claim 1, characterized in that: The bottom side of the support plate (1) is rotatably connected to a drive gear (610), which meshes with one of the driven gears (62), and the drive gear (610) is coaxially fixed with an external drive device.

6. A high-speed single-tooth thread milling cutter with an internal cooling channel according to claim 1, characterized in that: A water injection pipe (7) is fixed on the shank of the thread milling cutter (5), and an internal cooling channel is provided inside the thread milling cutter (5). The water injection pipe (7) is connected to the internal cooling channel.

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