End face ring groove tool capable of protecting tool nose

Abstract

The utility model discloses an end face ring groove cutter capable of protecting a cutter tip, which comprises a handle part, an upper cutter head, a lower cutter head and a transition section, the upper cutter head is arranged at one end of the handle part, four cutter teeth are uniformly distributed on the upper cutter head along the central axis of the handle part, four chip removal grooves are arranged on the cutter teeth, and the transition section is arranged on the lower cutter head. A chip removal groove is formed in the lower tool bit, a front tool face and a groove bottom are formed in the chip removal groove, an included angle beta is formed between the front tool face and the central axis of the handle, a tool tooth is arranged on the lower tool bit along the central axis of the handle, a chip removal groove is formed in the tool tooth, and a front tool face and a groove bottom are formed in the chip removal groove. Due to the fact that the upper tool bit and the lower tool bit are arranged, annular grooves in the upper end face and the lower end face of a workpiece can be machined at a time, and the machining efficiency and the consistency of product precision are effectively improved. And the chip removal grooves are formed, so that machining chips can be discharged through the chip removal grooves, and the tool nose is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to an end face ring groove cutting tool capable of protecting the tool tip. Background Technique

[0002] Semiconductor shunt plates are usually used in the production and testing processes of semiconductor devices and are key components for current shunting and heat dissipation. In semiconductor devices, the design and processing of current shunt plates have an important impact on the performance and stability of the devices. In the production of semiconductor shunt plates, the processing of upper and lower end face ring grooves is a relatively important link. In practical applications, semiconductor shunt plates need to have excellent electrical conductivity and heat dissipation performance. The design and processing of upper and lower end face ring grooves can affect the current distribution and heat dissipation effect of the shunt plate. Therefore, ensuring the processing accuracy and quality of the ring grooves is crucial for guaranteeing the performance of the devices.

[0003] Most of the existing cutting tools have only one tool head. When processing the upper and lower end face ring grooves, the upper end face ring groove is processed first and then the lower end face ring groove is processed. Such a processing method will result in insufficient accuracy and consistency of the product. Moreover, the connection rigidity between the tool head of most existing cutting tools and the processing equipment is insufficient, which is unstable during processing and easily damages the tool head, reducing the processing efficiency. Content of the Utility Model

[0004] The utility model aims to solve the above-mentioned existing technical problems and provides an end face ring groove cutting tool capable of protecting the tool tip.

[0005] The technical solution of the utility model is realized as follows:

[0006] An end face ring groove cutting tool capable of protecting the tool tip includes a shank, an upper tool head, a lower tool head, and a transition section. The upper tool head is arranged at one end of the shank, and the central axis of the upper tool head is collinear with the central axis of the shank. The transition section is arranged between the upper tool head and the lower tool head, and the central axis of the transition section is collinear with the central axis of the shank. Four first cutting teeth are evenly distributed along the central axis of the shank on the upper tool head. A first chip removal groove is arranged on the upper tool head at the position of the first cutting teeth. The first chip removal groove forms a first rake face and a first groove bottom. The first rake face forms an angle β with the central axis of the shank. The central axis of the lower tool head is collinear with the central axis of the shank. One second cutting tooth is arranged along the central axis of the shank on the lower tool head. A second chip removal groove is arranged on the lower tool head at the position of the second cutting teeth. The second chip removal groove forms a second rake face and a second groove bottom. The second rake face forms an angle α with the central axis of the shank.

[0007] Preferably, the first cutting tooth includes a first outer peripheral edge, an inner peripheral edge and an end face. The first outer peripheral edge includes a first flank face and a second flank face. The inner peripheral edge is provided with a third flank face. The end of the upper tool head is provided with an end edge, which includes a fourth flank face and a fifth flank face. A first circular arc edge is provided between the first outer peripheral edge and the end edge, and the first circular arc edge includes a sixth flank face and a seventh flank face. A second circular arc edge is provided between the inner peripheral edge and the end edge; the second outer peripheral edge of the second cutting tooth includes an eighth flank face and a ninth flank face.

[0008] Preferably, the transition section is a special-shaped cylinder, which is formed by eccentrically moving a cylinder with a radius of r centered on the central axis of the handle portion to one side of itself in the radial direction, and the amount of eccentricity is TK.

[0009] Preferably, the diameter D of the first cutting tooth of the upper tool head is set between 20 and 50 mm.

[0010] Preferably, the width W1 of the first cutting tooth of the upper tool head is set between 3 and 8 mm.

[0011] Preferably, the radius d of the second cutting tooth of the lower tool head is set between 10 and 25 mm.

[0012] Preferably, the width W2 of the second cutting tooth of the lower tool head is set between 3 and 8 mm.

[0013] Preferably, the height H between the upper tool head and the lower tool head is set between 10 and 50 mm.

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

[0015] The present invention provides an end face ring groove tool capable of protecting the tool tip. By setting an upper tool head and a lower tool head, the ring grooves on the upper and lower end faces of the workpiece can be machined at one time, effectively improving the machining efficiency and the consistency of product precision. By setting chip removal grooves, the machining debris can be discharged through the chip removal grooves to avoid damaging the tool tip. The special-shaped cylinder connecting the upper and lower tool heads has higher connection rigidity under effective clearance, making the machining of the lower tool head part more stable and having higher machining efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an end face ring groove tool capable of protecting the tool tip according to the present invention;

[0017] Figure 2 is a side view of an end face ring groove tool capable of protecting the tool tip according to the present invention;

[0018] Figure 3This is the front view of an end face annular groove tool for protecting the tool tip of the present utility model.

[0019] 1 - shank; 2 - upper tool head; 201 - first cutting tooth; 202 - first chip groove; 2021 - first rake face; 2022 - first groove bottom; 203 - first outer peripheral edge; 2031 - first flank face; 2032 - second flank face; 204 - end edge; 2041 - fourth flank face; 2042 - fifth flank face; 205 - first circular arc edge; 2051 - sixth flank face; 2052 - seventh flank face; 206 - third flank face; 207 - second circular arc edge; 3 - lower tool head; 301 - second cutting tooth; 302 - second chip groove; 3021 - second rake face; 3022 - second groove bottom; 303 - second outer peripheral edge; 3031 - eighth flank face; 3032 - ninth flank face; 4 - transition section. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 - 3, the utility model relates to an end face annular groove cutter capable of protecting the tool tip, which comprises a shank 1, an upper tool head 2, a lower tool head 3 and a transition section 4. The upper tool head 2 is arranged at one end of the shank 1, and the central axis of the upper tool head 2 is collinear with the central axis of the shank 1. The transition section 4 is arranged between the upper tool head 2 and the lower tool head 3, and the central axis of the transition section 4 is collinear with the central axis of the shank 1. Four first cutting teeth 201 are evenly arranged on the upper tool head 2 along the central axis of the shank 1. Four first chip removal grooves 202 are arranged on the upper tool head 2 at the position of the first cutting teeth 201. The first chip removal grooves 202 form a first rake face 2021 and a first groove bottom 2022. The first rake face 2021 forms an angle β with the central axis of the shank 1. The central axis of the lower tool head 3 is collinear with the central axis of the shank 1. One second cutting tooth 301 is arranged on the lower tool head 3 along the central axis of the shank 1. One second chip removal groove 302 is arranged on the lower tool head 3 at the position of the second cutting tooth 301. The second chip removal groove 302 forms a second rake face 3021 and a second groove bottom 3022. The second rake face 3021 forms an angle α with the central axis of the shank 1. The setting of the upper tool head 2 can realize the functions of cutting and chip removal, which helps to effectively remove the chips generated in the processing process and improve the cutting efficiency. The setting of the lower tool head 3 can further assist in cutting and chip removal, protect the tool tip from damage, and extend the service life of the tool. The first chip removal groove 202 and the second chip removal groove 302 are used to guide and collect the chips generated in the processing process, and avoid chip accumulation on the tool surface, which may cause tool damage or affect the processing quality. The setting of the first chip removal groove 202 and the second chip removal groove 302 can ensure the smooth discharge of chips, keep the cutting surface clean, and improve the processing efficiency and quality. By setting the upper tool head 2 and the lower tool head 3, the problem that most existing tools have only one tool head, and when processing the upper and lower end face annular grooves, the upper end face annular groove is processed first and then the lower end face annular groove is processed, and such a processing method will result in insufficient accuracy and consistency of the product is solved.

[0022] The first cutting tooth 201 includes a first outer peripheral edge 203, an inner peripheral edge and an end face. The first outer peripheral edge 203 includes a first flank face 2031 and a second flank face 2032. The inner peripheral edge is provided with a third flank face 206. An end edge 204 is provided at the end of the upper tool head 2. The end edge 204 includes a fourth flank face 2041 and a fifth flank face 2042. A first circular arc edge 205 is provided between the first outer peripheral edge 203 and the end edge 204. The first outer peripheral edge 203 and the end edge 204 are transitioned through the first circular arc edge 205. The circular arc edge includes a sixth flank face 2051 and a seventh flank face 2052. A second circular arc edge 207 is provided between the inner peripheral edge and the end edge 204. The inner peripheral edge and the end edge 204 are transitioned through the second circular arc edge 207. The second outer peripheral edge 303 of the second cutting tooth 301 includes an eighth flank face 3031 and a ninth flank face 3032.

[0023] Further, the transition section 4 is a special-shaped cylinder. The special-shaped cylinder is formed by eccentrically offsetting a cylinder with a radius of r centered on the central axis of the shank 1 by an amount of TK toward one side of itself in the radial direction. The dimension H2 from the outer periphery of the lower tool head 3 to one side of the transition section 4 is smaller than H1. The transition section 4 connects the upper tool head 2 and the lower tool head 3 and has higher connection rigidity. During the machining process, the transition section 4 can effectively transmit the cutting force and maintain the precise alignment between the upper and lower tool heads, improving the stability and machining accuracy of the tool. By setting different radii of r and R, the vibration and displacement of the tool can be reduced while ensuring the structural strength of the tool, improving the machining stability, and also contributing to extending the service life of the tool, solving the problem that the connection rigidity between the tool head and the processing equipment of most existing tools is insufficient, unstable during machining, and prone to damage the tool head, resulting in reduced machining efficiency.

[0024] Further, the distance D between the first cutting teeth 201 of the upper tool head 2 opposite to each other is the diameter and is set between 20 and 50 mm.

[0025] Further, the width W1 dimension of the first cutting tooth 201 of the upper tool head 2 is set between 3 and 8 mm.

[0026] Further, the radius d of the second cutting tooth 301 of the lower tool head 3 opposite to each other is set between 10 and 25 mm.

[0027] Further, the width W2 dimension of the second cutting tooth 301 of the lower tool head 3 is set between 3 and 8 mm.

[0028] Further, the height H between the upper tool head 2 and the lower tool head 3 is set between 10 and 50 mm.

[0029] The working principle of an end face annular groove tool capable of protecting the tool tip provided by the present utility model is as follows:

[0030] During use, the tool is correctly installed on the processing equipment, and it is ensured that the matching and alignment between the tool and the workpiece are accurate. After setting appropriate cutting parameters according to the processing material and requirements, the workpiece can be processed.

[0031] The present utility model provides an end face annular groove tool capable of protecting the tool tip. By setting the upper tool head 2 and the lower tool head 3, the annular grooves on the upper and lower end faces of the workpiece can be machined at one time, effectively improving the processing efficiency and the consistency of product precision. By setting chip removal grooves, the machining debris can be discharged through the chip removal grooves to prevent damage to the tool tip. The special-shaped cylinder connecting the upper and lower tool heads has higher connection rigidity under effective clearance, making the lower tool head part more stable during machining and having higher processing efficiency.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. An end face ring groove tool capable of protecting the tool tip, characterized in that: The invention comprises a handle (1), an upper cutter head (2), a lower cutter head (3) and a transition section (4), wherein the upper cutter head (2) is arranged at one end of the handle (1), the central axis of the upper cutter head (2) is collinear with the central axis of the handle (1), the transition section (4) is arranged between the upper cutter head (2) and the lower cutter head (3), the central axis of the transition section (4) is collinear with the central axis of the handle (1), the upper cutter head (2) is evenly arranged with four first cutter teeth (201) along the central axis of the handle (1), the upper cutter head (2) is provided with a first chip removal groove (202) at the location of the first cutter tooth (201), and the first chip removal groove (202) ) forms a first rake face (2021) and a first groove bottom (2022), the first rake face (2021) forms an angle β with the central axis of the shank (1); the central axis of the lower cutter head (3) is colinear with the central axis of the shank (1), the lower cutter head (3) is provided with a second tooth (301) along the central axis of the shank (1), the lower cutter head (3) is provided with a second chip removal groove (302) at the second tooth (301), the second chip removal groove (302) forms a second rake face (3021) and a second groove bottom (3022), the second rake face (3021) forms an angle α with the central axis of the shank (1).

2. The end face annular groove tool capable of protecting the tool tip according to claim 1, characterized in that: The first tooth (201) comprises a first peripheral edge (203), an inner peripheral edge and an end face, the first peripheral edge (203) comprises a first flank face (2031) and a second flank face (2032), the inner peripheral edge is provided with a third flank face (206), an end edge (204) is provided at the end of the upper cutter head (2), the end edge (204) comprises a fourth flank face (2041) and a fifth flank face (2042), the first A first arc edge (205) is provided between the peripheral edge (203) and the end edge (204), the first arc edge (205) includes a sixth flank surface (2051) and a seventh flank surface (2052), a second arc edge (207) is provided between the inner peripheral edge and the end edge (204); the second peripheral edge (303) of the second tooth (301) includes an eighth flank surface (3031) and a ninth flank surface (3032).

3. The end face annular groove tool capable of protecting the tool tip according to claim 1, characterized in that: The transition section (4) is a special-shaped cylinder, which is composed of a cylinder with a radius of r and a central axis of the handle (1) as the center, and is eccentric to one side of itself in the radial direction, and the eccentricity is TK.

4. The end face annular groove tool capable of protecting the tool tip according to claim 2, characterized in that: The distance D between the first blade teeth (201) opposite to each other is set between 20 and 50 mm.

5. The end face annular groove tool capable of protecting the tool tip according to claim 4, characterized in that: The width W1 of the first blade tooth (201) of the upper blade head (2) is set between 3 and 8 mm.

6. The end face annular groove tool capable of protecting the tool tip according to claim 1, characterized in that: The radius d of the second blade tooth (301) of the opposite lower blade head (3) is set between 10 and 25 mm.

7. The end face annular groove tool capable of protecting the tool tip according to claim 6, characterized in that: The width W2 of the second blade teeth (301) of the lower blade head (3) is set between 3 and 8 mm.

8. The end face annular groove tool capable of protecting the tool tip according to claim 7, characterized in that: The height H between the upper cutter head (2) and the lower cutter head (3) is set between 10 and 50 mm.

Images