Thread milling cutter with chip breaking function

Abstract

The utility model discloses a thread milling cutter with a chip breaking function. The milling cutter comprises a base, a clamping assembly arranged in the center of the base, a rotating assembly arranged on the upper side surface of the base and a scrap removing assembly arranged on the upper side of the rotating assembly, the clamping assembly comprises an inserting groove formed in the center of the base, a milling cutter column is detachably inserted in the inserting groove, and side grooves are formed in the two side walls of the inserting groove; when a milling cutter needs to be subjected to chip breaking, a top plate is pulled outwards to move outwards in a side groove, a side plate is driven to move outwards in a side groove, a second motor is controlled to operate to drive a first bevel gear to rotate and mesh to drive a second bevel gear to rotate, and an embedded column is driven to rotate in an annular groove in a surrounding mode under the limiting effect that a limiting plate is embedded in a limiting groove; and the brush plate is driven to fully rotate around the milling cutter column to remove chips, so that the chip breaking convenience of the milling cutter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thread milling cutters, in particular to a thread milling cutter with a chip breaking function. Background Art

[0002] Traditional thread processing methods mainly use thread turning tools to turn threads or use taps and dies for manual tapping and threading. With the development of CNC machining technology, especially the emergence of three-axis linkage CNC machining systems, a more advanced thread processing method - CNC milling of threads has become possible. Compared with traditional thread processing methods, thread milling has great advantages in processing accuracy and efficiency.

[0003] An existing public patent (publication number CN218135230U) discloses a thread milling cutter with a chip breaking function. The side wall of the thread milling column is provided with a spiral chip groove in an inward concave shape, and a chip breaking protrusion is provided in the chip groove. The chip groove enables the thread milling cutter to quickly discharge the waste chips generated during milling, and cut them off through the chip breaking protrusion to avoid waste chip accumulation.

[0004] However, there are some problems in the chip breaking process of existing thread milling cutters: 1. The current chip breaking structure cannot uniformly position milling cutters of different diameters. The diameter of the slot is a fixed caliber, so only milling cutters of the same model can be positioned for chip breaking; 2. The existing chip breaking structure removes chips under inertia through a separate chip removal groove, but some debris will be adsorbed and remain in the groove and cannot be fully and thoroughly processed, affecting the accuracy of subsequent milling cutter use. Utility Model Content

[0005] The purpose of the utility model is to provide a thread milling cutter with a chip breaking function to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a base, a clamping assembly arranged inside the center of the base, a rotating assembly arranged on the upper surface of the base, and a chip removal assembly arranged on the upper side of the rotating assembly;

[0007] The clamping assembly includes a slot provided in the center of the base, a milling cutter column being detachably inserted into the slot, side slots being provided on both side walls of the slot, a top plate being movably installed in the side slot, a side slot being provided on the upper side wall of the side slot, and a side plate being provided on the upper side of the top plate to cooperate with the side slot;

[0008] The rotating assembly includes a top ring arranged on the upper surface of the base, a ring groove is provided inside the top ring, an embedded column is movably installed in the ring groove, a limiting groove is provided on the side wall of the ring groove, and a limiting plate is provided on the outer surface of the lower end of the embedded column to cooperate with the limiting groove.

[0009] As a further solution of the present invention: the chip removal assembly includes a bottom groove opened inside the lower end of the embedded column, the horizontal inner wall of the bottom groove is provided with a first bevel gear, the outer end of the first bevel gear is connected to the output end of the second motor, and the upper inner wall of the bottom groove is provided with a second bevel gear that cooperates with the first bevel gear.

[0010] As a further solution of the present invention: the clamping assembly also includes a hydraulic rod arranged on the side wall of the side plate, the outer wall of the hydraulic rod is fitted with a spring, and one end of the spring is fixedly connected to the side wall of the side groove.

[0011] As a further solution of the present invention: the rotating assembly also includes a gear arranged at the end of the limiting plate away from the milling cutter column, the upper end of the gear is connected to the output end of the first motor, and the side wall of the limiting groove is provided with a gear ring that cooperates with the gear.

[0012] As a further solution of the present invention: the chip removal assembly also includes a telescopic groove opened on the outer side of the upper side of the bottom groove, a screw is installed in the telescopic groove, a telescopic plate is fitted on the outer wall of the screw, and a brush plate is installed on the upper end of the telescopic plate close to the surface of one end of the milling cutter column.

[0013] As a further solution of the present invention: the lower end of the screw and the rotating end of the second bevel gear are cooperatively connected with each other.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] When the milling cutter needs to break chips, the utility model pulls the top plate outward to move it in and out of the side groove, drives the side plate to move in and out of the side groove, squeezes the hydraulic rod and the spring to generate potential energy, inserts the milling cutter column downward into the slot, releases the pulling force on the top plate, and the spring releases the potential energy to push the side plate, drives the top plate to clamp the side wall of the milling cutter column, and positions it in the slot for subsequent stable chip breaking operation.

[0016] After the milling cutter is positioned, the utility model controls the second motor to operate to drive the first bevel gear to rotate and engage to drive the second bevel gear to rotate, drive the screw connected thereto to rotate, and engage to drive the telescopic plate to move up and down in the telescopic groove, adjust the height position of the brush plate, control the first motor to operate to drive the gear to rotate, so that it engages relatively with the surface of the gear ring, and when the limiting plate is embedded in the limiting groove, drives the embedded column to rotate around in the ring groove, drives the brush plate to perform a full rotation chip removal operation around the milling cutter column, thereby improving the chip breaking convenience of the milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of a clamping assembly and a rotating assembly according to an embodiment of the present utility model;

[0019] Figure 3 For the embodiment of the utility model Figure 2 Middle A is a schematic diagram of a partially enlarged structure;

[0020] Figure 4 This is a schematic diagram of a chip removal assembly according to an embodiment of the present invention.

[0021] In the figure: 1. base; 201. slot; 202. milling cutter column; 203. side groove; 204. top plate; 205. side groove; 206. side plate; 207. hydraulic rod; 208. spring; 301. top ring; 302. ring groove; 303. embedded column; 304. limit groove; 305. limit plate; 306. gear; 307. first motor; 308. gear ring; 401. bottom groove; 402. first bevel gear; 403. second motor; 404. second bevel gear; 405. telescopic slot; 406. screw; 407. telescopic plate; 408. brush plate. DETAILED DESCRIPTION

[0022] To facilitate solving the problem, the present invention provides a thread milling cutter with a chip breaking function. The following, in conjunction with the accompanying drawings, provides a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example 1

[0023] like Figures 1 to 4As shown, this embodiment provides a thread milling cutter with a chip breaking function, including a base 1, a clamping assembly arranged inside the center of the base 1, a rotating assembly arranged on the upper surface of the base 1 and a chip removal assembly arranged on the upper side of the rotating assembly, the clamping assembly includes a slot 201 opened in the center of the base 1, a milling cutter column 202 is detachably inserted in the slot 201, side grooves 203 are opened on both side walls of the slot 201, a top plate 204 is movably installed in the side groove 203, a side groove 205 is opened on the side wall of the side groove 203, a side plate 206 that cooperates with the side groove 205 is arranged on the upper side of the top plate 204, and a spring 208 releases potential energy to push the side plate 206, driving the top plate 20 4 is clamped on the side wall of the milling cutter column 202 and positioned in the slot 201 for subsequent stable chip breaking operation. The rotating assembly includes a top ring 301 arranged on the upper side surface of the base 1. The top ring 301 is provided with an annular groove 302. An embedded column 303 is movably installed in the annular groove 302. A limiting groove 304 is provided on the side wall of the annular groove 302. A limiting plate 305 is provided on the outer surface of the lower end of the embedded column 303 to cooperate with the limiting groove 304. The surfaces of the gear ring 308 are relatively meshed. When the limiting plate 305 is embedded in the limiting groove 304, the embedded column 303 is driven to rotate around in the annular groove 302, driving the brush plate 408 to perform a sufficient rotation and chip removal operation around the milling cutter column 202. Example 2

[0024] In addition to all the technical features of Example 1, this embodiment also includes: the chip removal assembly includes a bottom groove 401 opened inside the lower end of the embedded column 303, and the horizontal inner wall of the bottom groove 401 is provided with a first bevel gear 402, the outer end of the first bevel gear 402 is cooperatively connected to the output end of the second motor 403, and the upper inner wall of the bottom groove 401 is provided with a second bevel gear 404 that cooperates with the first bevel gear 402. The first bevel gear 402 rotates and engages to drive the second bevel gear 404 to rotate, and drives the screw 406 connected thereto to rotate. The engagement drives the telescopic plate 407 to move up and down in the telescopic groove 405, and adjusts the height position of the brush plate 408, so as to facilitate efficient adjustment of the position of the chip breaking assembly.

[0025] Furthermore, the clamping assembly also includes a hydraulic rod 207 arranged on the side wall of the side plate 206, and the outer wall of the hydraulic rod 207 is fitted with a spring 208, and one end of the spring 208 is fixedly connected to the side wall of the side groove 205. The hydraulic rod 207 and the spring 208 generate potential energy, and the milling cutter column 202 is inserted downward into the slot 201 to release the tension on the top plate 204. The spring 208 releases the potential energy to push the side plate 206, driving the top plate 204 to clamp on the side wall of the milling cutter column 202, positioning it in the slot 201, which is convenient for clamping and positioning milling cutters of different sizes.

[0026] Furthermore, the rotating assembly also includes a gear 306 arranged at the end of the limiting plate 305 away from the milling cutter column 202, the upper end of the gear 306 is cooperatively connected to the output end of the first motor 307, and the side wall of the limiting groove 304 is provided with a gear ring 308 that cooperates with the gear 306, driving the gear 306 to rotate so that it is relatively meshed on the surface of the gear ring 308. When the limiting plate 305 is embedded in the limiting groove 304, it drives the embedded column 303 to rotate around in the ring groove 302, so that the chip breaker assembly can efficiently adjust the direction around the milling cutter.

[0027] Furthermore, the chip removal assembly also includes a telescopic groove 405 opened on the upper outside of the bottom groove 401, and a screw 406 is installed in the telescopic groove 405. The outer wall of the screw 406 is fitted with a telescopic plate 407, and the upper end of the telescopic plate 407 is fitted with a brush plate 408 on the surface near one end of the milling cutter column 202. The screw 406 rotates and engages to drive the telescopic plate 407 to move up and down in the telescopic groove 405, so as to facilitate the adjustment of the height position of the brush plate 408.

[0028] Furthermore, the lower end of the screw 406 is connected to the rotating end of the second bevel gear 404, and the second bevel gear 404 rotates, driving the screw 406 connected thereto to rotate, and the meshing drives the telescopic plate 407 to move up and down in the telescopic slot 405, making the component driving process more efficient.

[0029] Working principle: When the milling cutter needs to be chip-broken, the top plate 204 is pulled outward to move it in and out of the side groove 203, driving the side plate 206 to move in and out of the side groove 205, squeezing the hydraulic rod 207 and the spring 208 to generate potential energy, inserting the milling cutter column 202 downward into the slot 201 to release the tension on the top plate 204, and the spring 208 releases the potential energy to push the side plate 206, driving the top plate 204 to clamp on the side wall of the milling cutter column 202, positioning it in the slot 201 for subsequent stable chip-breaking operations. After the milling cutter is positioned, the second motor 403 is controlled to operate to drive the first cone The bevel gear 402 rotates and engages to drive the second bevel gear 404 to rotate, and drives the screw 406 connected to it to rotate. The engagement drives the telescopic plate 407 to move up and down in the telescopic groove 405, adjusts the height position of the brush plate 408, and controls the operation of the first motor 307 to drive the gear 306 to rotate, so that it is relatively engaged with the surface of the gear ring 308. When the limit plate 305 is embedded in the limit groove 304, it drives the embedded column 303 to rotate around in the annular groove 302, and drives the brush plate 408 to perform a full rotation chip removal operation around the milling cutter column 202, thereby improving the chip breaking convenience of the milling cutter.

[0030] 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.

[0031] 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 thread milling cutter with chip breaking function, characterized in that: It comprises a base (1), a clamping assembly arranged in the center of the base (1), a rotating assembly arranged on the upper surface of the base (1), and a chip removal assembly arranged on the upper side of the rotating assembly; The clamping assembly comprises a slot (201) provided at the center of the base (1), a milling cutter column (202) being detachably inserted in the slot (201), side slots (203) being provided on both side walls of the slot (201), a top plate (204) being movably installed in the side slot (203), a side slot (205) being provided on the upper side wall of the side slot (203), and a side plate (206) cooperating with the side slot (205) being provided on the upper side of the top plate (204); The rotating assembly comprises a top ring (301) arranged on the upper surface of the base (1), a ring groove (302) is provided inside the top ring (301), an embedded column (303) is movably installed in the ring groove (302), a limiting groove (304) is provided on the side wall of the ring groove (302), and a limiting plate (305) is provided on the outer surface of the lower end of the embedded column (303) and is matched with the limiting groove (304).

2. A thread milling cutter with chip breaking function according to claim 1, characterized in that: The chip removal assembly comprises a bottom groove (401) provided inside the lower end of the embedded column (303); a first bevel gear (402) is provided on the transverse inner wall of the bottom groove (401); an outer end of the first bevel gear (402) is cooperatively connected to the output end of the second motor (403); and a second bevel gear (404) is provided on the upper inner wall of the bottom groove (401) and cooperates with the first bevel gear (402).

3. The thread milling cutter with chip breaking function according to claim 1, characterized in that: The clamping assembly further comprises a hydraulic rod (207) arranged on the side wall of the side plate (206); a spring (208) is fitted on the outer wall of the hydraulic rod (207), and one end of the spring (208) is fixedly connected to the side wall of the side groove (205).

4. The thread milling cutter with chip breaking function according to claim 1, characterized in that: The rotating assembly further comprises a gear (306) arranged at one end of the limiting plate (305) away from the milling cutter column (202), the upper end of the gear (306) being cooperatively connected to the output end of the first motor (307), and a gear ring (308) cooperating with the gear (306) being provided on the side wall of the limiting groove (304).

5. The thread milling cutter with chip breaking function according to claim 2, characterized in that: The chip removal assembly further comprises a telescopic groove (405) provided on the upper outer side of the bottom groove (401), a screw (406) being fitted in the telescopic groove (405), a telescopic plate (407) being fitted on the outer wall of the screw (406), and a brush plate (408) being fitted on the upper end of the telescopic plate (407) close to one end surface of the milling cutter column (202).

6. The thread milling cutter with chip breaking function according to claim 5, characterized in that: The lower end of the screw rod (406) and the rotating end of the second bevel gear (404) are mutually connected.

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