Machine clamping type thread milling cutter

Abstract

The utility model relates to a mechanically-clamped thread milling cutter which comprises a cutter body and a blade arranged on the surface of the cutter body through a mounting piece, two clamping grooves are formed in one side of the cutter body; a mounting sleeve is arranged at the top of the cutter body, a limiting piece used for fixing the cutter body is arranged on one side of the mounting sleeve, and the limiting piece comprises a frame body embedded in the surface of the mounting sleeve. When the cutter body is installed, the moving plate drives the two limiting columns to move and break away from the clamping grooves in the surface of the cutter body, at the moment, the supporting springs are stretched, the cutter body can be smoothly separated from the installation sleeve, when the cutter body is installed, the movement process is repeated, the limiting columns are connected with the clamping grooves in a clamped mode, and under the effect of the supporting springs, the initial installation effect can be achieved; and one end of the abutting rod is attached to the surface of the movable plate, movement of the movable plate is avoided, and therefore the cutter body is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter equipment, in particular to a machine-clamped thread milling cutter. Background Art

[0002] A thread milling cutter is a type of milling cutter, which is mainly used for thread processing on workpieces. Thread milling cutters are divided into: integral thread milling cutters, machine-clamped thread milling cutters, and welded thread milling cutters. In the prior art, when replacing a milling cutter on a CNC machine tool, it is necessary to first remove the locking nut and then take out the milling cutter. When installing, it is necessary to align the end notch of the milling cutter with the flat key on the spindle, and then turn the locking nut to lock it. The entire replacement process is relatively complicated, which reduces the processing efficiency of parts.

[0003] For example, a machine-clamped milling cutter disclosed in the authorized patent document with application number CN202222008513.X relates to the field of mechanical processing technology, including a cutter body rotating around a first axis, at least one elastic slot is provided on the circumferential side wall of the cutter body, each blade can be inserted and fixed in an elastic slot along a first direction, the first direction is perpendicular to the first axis, and one end of each blade away from the cutter body can protrude from the circumferential side wall of the cutter body, each elastic slot is provided with a first limiting portion on one side wall for clamping the blade, each blade is provided with a second limiting portion, the first limiting portion has a first limiting surface, the second limiting portion has a second limiting surface, the first limiting surface and the second limiting surface can be engaged and matched to prevent the blade from moving in the first direction away from the cutter body. The engagement of the first limiting portion and the second limiting portion can prevent the blade from escaping from the elastic slot along the first direction when the cutter body rotates, so that the blade can be stably and firmly clamped in the elastic slot to prevent the blade from flying out and causing harm to the person.

[0004] The above patent has the problem that the replacement of the milling cutter is too complicated, which reduces the processing efficiency of parts. Therefore, we need to provide a machine-clamped thread milling cutter. Utility Model Content

[0005] The purpose of the utility model is to provide a machine-clamped thread milling cutter. When replacing the cutter body, the pulling frame is first moved to drive the moving plate to move within the frame. The moving plate drives the two limit posts to move and disengage from the slots on the surface of the cutter body. At this time, the support spring is stretched, and the cutter body can be smoothly separated from the mounting sleeve. When installing the cutter body, the above movement process is repeated to engage the limit posts with the slots. Under the action of the support spring, a preliminary installation effect can be achieved. By rotating the resistance rod, one end of the resistance rod is fitted with the surface of the moving plate to avoid movement of the moving plate, thereby preventing the cutter body from falling off and solving the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a machine-clamped thread milling cutter, comprising:

[0007] A cutter body, and a blade arranged on the surface of the cutter body through a mounting member;

[0008] Two slots are provided on one side of the knife body;

[0009] A mounting sleeve is provided on the top of the knife body, and a limiting member for fixing the knife body is provided on one side of the mounting sleeve;

[0010] The limiting member includes a frame embedded in the surface of the mounting sleeve, a movable plate is slidably installed inside the frame, two limiting columns are fixedly installed on one side of the movable plate, one end of the two limiting columns passes through the inner wall of the mounting sleeve and is clamped with the clamping groove, two supporting springs are clamped between one side of the movable plate and the surface of the mounting sleeve, the interior of the supporting spring is movably sleeved on the surface of the limiting column, and a pulling frame is fixedly installed on one side of the movable plate.

[0011] Preferably, one side of the pulling frame passes through one side of the frame body and extends, and a resistance rod for limiting the movable plate is slidably installed inside the pulling frame, and the surface of the resistance rod is threadably installed with the internal thread of the frame body.

[0012] Preferably, sliders are embedded in the top and bottom of the movable plate, and balls are rotatably mounted inside the sliders, and the surfaces of the balls are in contact with the inner walls of the frame.

[0013] Preferably, the top and the bottom of the inner wall of the frame are both provided with sliding grooves for the balls to slide.

[0014] Preferably, a guide rod is integrally machined on one side of the cutter body, and a guide groove matched with the guide rod is provided inside the mounting sleeve.

[0015] Preferably, the mounting member comprises a threaded groove and a limiting bolt, the limiting bolt is slidably mounted inside the blade, and the surface of the blade body is provided with a threaded groove threadably mounted with the limiting bolt.

[0016] Preferably, two mounting grooves are provided on one side of the blade, and a mounting strip slidably mounted with the mounting grooves is fixedly mounted on the surface of the blade body.

[0017] Preferably, a limiting ring which fits with the bottom of the mounting sleeve is fixedly mounted on the surface of the blade body.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] When the utility model replaces the knife body, first move the pulling frame to drive the moving plate to move in the frame, and the moving plate drives the two limit posts to move and disengage from the slots on the surface of the knife body. At this time, the supporting spring is stretched, and the knife body can be smoothly separated from the installation sleeve. When installing the knife body, repeat the above movement process, and connect the limit posts with the slots. Under the action of the supporting spring, a preliminary installation effect can be achieved. By rotating the resistance rod, one end of the resistance rod is fitted with the surface of the moving plate to avoid movement of the moving plate, thereby preventing the knife body from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a three-dimensional exploded view of the mounting member of the utility model;

[0022] Figure 3 It is a three-dimensional cross-sectional view of the installation sleeve of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the limiting member of the utility model;

[0024] Figure 5 It is a partial structural stereogram of the utility model.

[0025] In the figure: 1. knife body; 2. blade; 3. slot; 4. mounting sleeve; 5. limit piece; 51. frame; 52. movable plate; 53. limit column; 54. support spring; 55. pull frame; 6. resistance rod; 7. slider; 8. ball bearing; 9. sliding groove; 10. guide rod; 11. guide groove; 12. mounting piece; 121. threaded groove; 122. limit bolt; 13. mounting groove; 14. mounting strip; 15. limit ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 The utility model provides a technical solution: a machine-clamped thread milling cutter, comprising: a cutter body 1, and a blade 2 arranged on the surface of the cutter body 1 through a mounting member 12; two slots 3 are provided on one side of the cutter body 1; a mounting sleeve 4 is provided on the top of the cutter body 1, and a limiting member 5 for fixing the cutter body 1 is provided on one side of the mounting sleeve 4.

[0028] The limiting member 5 includes a frame 51 embedded in the surface of the mounting sleeve 4, a movable plate 52 is slidably installed inside the frame 51, two limiting columns 53 are fixedly installed on one side of the movable plate 52, one end of the two limiting columns 53 penetrates the inner wall of the mounting sleeve 4 and is clamped with the slot 3, two supporting springs 54 are clamped between one side of the movable plate 52 and the surface of the mounting sleeve 4, the interior of the supporting spring 54 is movably sleeved with the surface of the limiting column 53, and a pulling frame 55 is fixedly installed on one side of the movable plate 52.

[0029] One side of the pulling frame 55 passes through one side of the frame body 51 and extends. A resisting rod 6 for limiting the moving plate 52 is slidably installed inside the pulling frame 55. The surface of the resisting rod 6 is threadedly installed with the internal thread of the frame body 51.

[0030] In this embodiment, when replacing the knife body 1, first move the pulling frame 55 to drive the movable plate 52 to move in the frame 51, and the movable plate 52 drives the two limit columns 53 to move and disengage from the slot 3 on the surface of the knife body 1. At this time, the support spring 54 is stretched, and the knife body 1 can be smoothly separated from the installation sleeve 4. When installing the knife body 1, repeat the above movement process, and the limit column 53 is clamped with the slot 3. Under the action of the support spring 54, a preliminary installation effect can be achieved. By rotating the resistance rod 6, one end of the resistance rod 6 is fitted with the surface of the movable plate 52 to avoid movement of the movable plate 52, thereby preventing the knife body 1 from falling off.

[0031] The top and bottom of the moving plate 52 are both embedded with a slider 7, and a ball 8 is rotatably mounted inside the slider 7, and the surface of the ball 8 is in contact with the inner wall of the frame 51;

[0032] Specifically, when the moving plate 52 slides, the balls 8 in the slider 7 on the surface thereof will roll on the inner wall of the frame 51, making the pulling of the moving plate 52 smoother and reducing friction.

[0033] The top and bottom of the inner wall of the frame 51 are provided with sliding grooves 9 for the balls 8 to slide;

[0034] Furthermore, a sliding groove 9 is provided for the sliding of the ball 8 , which has a guiding effect on the movement of the ball 8 .

[0035] A guide rod 10 is integrally formed on one side of the cutter body 1, and a guide groove 11 adapted to the guide rod 10 is formed inside the mounting sleeve 4;

[0036] It is worth noting that a guide rod 10 is installed on one side of the blade body 1. When the blade body 1 is installed with the mounting sleeve 4, the guide rod 10 is inserted into the guide groove 11, so that when the blade body 1 enters the mounting sleeve 4, the slot 3 on the surface of the blade body 1 can be smoothly engaged with the limiting column 53.

[0037] The mounting member 12 includes a thread groove 121 and a limiting bolt 122. The limiting bolt 122 is slidably mounted inside the blade 2. The surface of the blade body 1 is provided with a thread groove 121 threadably mounted with the limiting bolt 122.

[0038] Specifically, the blade 2 will wear out after long-term use. The limiting bolt 122 can be rotated to disengage from the thread groove 121. The blade 2 can be replaced without replacing the entire cutter body 1, which saves resources. After disassembly, it should be cleaned in time to remove chips and dust to keep the blade 2 clean. In addition, regular maintenance and lubrication of the blade 2 can extend its service life.

[0039] Two mounting grooves 13 are provided on one side of the blade 2, and a mounting strip 14 is fixedly mounted on the surface of the blade body 1 and is slidably mounted with the mounting grooves 13;

[0040] Among them, a mounting strip 14 is fixedly installed on the surface of the blade body 1 and is compatible with the mounting groove 13 on the surface of the blade 2, which facilitates the installation and use of the blade 2 and enhances the stability of the installation of the blade 2.

[0041] In order to facilitate the smooth connection and fixation between the slot 3 in the blade body 1 and the limiting column 53, when the limiting ring 15 on the surface of the blade body 1 fits with the surface of the mounting sleeve 4, the slot 3 and the limiting column 53 are in the same direction, and the surface of the blade body 1 is fixedly installed with a limiting ring 15 that fits with the bottom of the mounting sleeve 4.

[0042] When the knife body 1 is replaced by the device, the pulling frame 55 is first moved to drive the movable plate 52 to move in the frame 51, and the movable plate 52 drives the two limit posts 53 to move and disengage from the slot 3 on the surface of the knife body 1. At this time, the support spring 54 is stretched, and the knife body 1 can be smoothly separated from the installation sleeve 4. When installing the knife body 1, the above movement process is repeated to engage the limit post 53 with the slot 3. Under the action of the support spring 54, a preliminary installation effect can be achieved. By rotating the resistance rod 6, one end of the resistance rod 6 is fitted with the surface of the movable plate 52 to avoid movement of the movable plate 52, thereby preventing the knife body 1 from falling off.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine-clamped thread milling cutter, characterized in that: include: A knife body (1), and a blade (2) arranged on the surface of the knife body (1) via a mounting member (12); Two slots (3) are provided on one side of the knife body (1); A mounting sleeve (4) is provided on the top of the blade body (1), and a limiting member (5) for fixing the blade body (1) is provided on one side of the mounting sleeve (4); The limiting member (5) comprises a frame (51) embedded in the surface of the mounting sleeve (4), a movable plate (52) is slidably mounted inside the frame (51), two limiting columns (53) are fixedly mounted on one side of the movable plate (52), one end of each of the two limiting columns (53) passes through the inner wall of the mounting sleeve (4) and is clamped with the clamping groove (3), two supporting springs (54) are clamped between one side of the movable plate (52) and the surface of the mounting sleeve (4), the interior of the supporting spring (54) is movably sleeved with the surface of the limiting column (53), and a pulling frame (55) is fixedly mounted on one side of the movable plate (52).

2. A machine-clamped thread milling cutter according to claim 1, characterized in that: One side of the pulling frame (55) passes through one side of the frame body (51) and extends, and a resisting rod (6) for limiting the position of the moving plate (52) is slidably installed inside the pulling frame (55), and the surface of the resisting rod (6) is threadedly installed with the internal thread of the frame body (51).

3. A machine-clamped thread milling cutter according to claim 2, characterized in that: The top and bottom of the movable plate (52) are both embedded with a slider (7), and a ball (8) is rotatably mounted inside the slider (7), and the surface of the ball (8) is in contact with the inner wall of the frame (51).

4. The machine-clamped thread milling cutter according to claim 3, characterized in that: The top and bottom of the inner wall of the frame (51) are both provided with sliding grooves (9) for the balls (8) to slide.

5. The machine-clamped thread milling cutter according to claim 1, characterized in that: A guide rod (10) is integrally formed on one side of the cutter body (1), and a guide groove (11) adapted to the guide rod (10) is provided inside the mounting sleeve (4).

6. The machine-clamped thread milling cutter according to claim 1, characterized in that: The mounting member (12) comprises a thread groove (121) and a limiting bolt (122); the limiting bolt (122) is slidably mounted inside the blade (2); and the surface of the blade body (1) is provided with a thread groove (121) threadably mounted with the limiting bolt (122).

7. The machine-clamped thread milling cutter according to claim 6, characterized in that: Two mounting grooves (13) are provided on one side of the blade (2), and a mounting strip (14) is fixedly mounted on the surface of the blade body (1) and is slidably mounted with the mounting grooves (13).

8. The machine-clamped thread milling cutter according to claim 1, characterized in that: A limiting ring (15) is fixedly mounted on the surface of the blade body (1) and is fitted with the bottom of the mounting sleeve (4).

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