Grooving cutter grain applied to cam machine tool

Abstract

The grooving cutter grain applied to the cam machine tool comprises a base body, cutter heads are formed at the two ends of the base body, a receding groove penetrating through the cutter head is concavely formed in one side of the top of each cutter head, and the receding grooves extend to the top end faces of the cutter heads. A first cutting tool nose is formed between the face, extending towards the base body, of the outer side edge of the clearance groove, of the tool bit and the bottom face of the clearance groove, a cutting edge is formed on the bottom face of the clearance groove, a second cutting edge is formed between the side wall face of the clearance groove and the top end face of the tool bit, and the first cutting tool nose, the second cutting tool nose and the front tool face of the cutting edge are coplanar. The clearance groove is used for avoiding the part of the groove body of the cylindrical workpiece, the first cutting tool nose, the second cutting tool nose and the cutting edge are used for grooving the workpiece and trimming the outer peripheral walls of the two cylinders with large and small diameters at the same time, the driving feed of a cam machine tool is adapted, the efficiency is high, and the cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of machining tools, and more particularly, to a grooving tool used in cam machine tools. Background Art

[0002] Cam machine tools are machine tools that use the cam principle for automated processing. They are widely used in mechanical manufacturing, automated production lines, precision processing and other fields. When the tool processes the workpiece, the cam completes the processing of the workpiece in one circle, which is very efficient.

[0003] See also Figure 1 For a cylindrical workpiece 1, it is necessary to cut a groove 11 around the center of the circle and through the end surface on the outer periphery of the end portion of the workpiece, so that the cylindrical workpiece 1 forms two cylindrical structures with the same height and different diameters. After the groove 1 is formed, the outer peripheral walls of the small-diameter cylinder 12 and the large-diameter cylinder 13 need to be trimmed. In the related art, a grooving cutter is required to cut out the groove 1, and a trimming cutter is required to trim the outer peripheral walls of the large-diameter cylinder 13 and the small-diameter cylinder 12. The three parts of the cylindrical workpiece 1 are usually processed separately using a grooving cutter and a trimming cutter. The use of multiple cutting tools is inefficient and costly. Therefore, it is urgent to develop a cam machine tool that can process the groove and trim the bottom surface of the groove and the circumferential surface of the large-diameter cylinder with one tool to improve the processing efficiency of the workpiece. Utility Model Content

[0004] In order to solve the problems in the related art of low efficiency and high cost in machining a groove body for a cylindrical workpiece and trimming the outer peripheral walls of two cylinders of large and small diameters, the present application provides a grooving tool for a cam machine tool.

[0005] A grooving blade for a cam machine tool, comprising a base, both ends of the base are formed with a blade, each of the blades has a recessed side with a clearance groove running through it, the clearance groove extends to the top surface of the blade, the bottom surface of the clearance groove is a first inclined surface, the first inclined surface is inclined toward the direction of the base from one side of its width direction as the starting side, the side edge is formed as a cutting edge, the side wall surface of the clearance groove is a second inclined surface inclined toward the other side of the blade from the side edge overlapping with the top surface of the blade as the starting side, the top surface of the blade is The side edge overlapping with the second inclined surface is a third inclined surface inclined in the direction of the base from the starting side, and a side surface on the tool head extending in the direction of the base from the outer side of the first inclined surface is a fourth inclined surface, and the fourth inclined surface is inclined from the outer side of the first inclined surface to the direction of the base from the starting side, and an angle end where the first inclined surface intersects with the fourth inclined surface is formed as a first cutting tip, and an angle end where the second inclined surface intersects with the third inclined surface is formed as a second cutting tip, and the first cutting tip, the second cutting tip and the front cutting edge face are coplanar.

[0006] Preferably, the inclination angles of the first inclined surface, the second inclined surface, the third inclined surface and the fourth inclined surface are all 2-8°.

[0007] Preferably, a bolt hole is provided in the middle of the base.

[0008] Preferably, the cutter head is provided with an arc-shaped groove penetrating the cutter head on the second inclined surface, and the groove surface of the arc-shaped groove is tangent to the second inclined surface.

[0009] The beneficial technical effects of the present application are as follows: the depth of the avoidance groove is set to match the distance from the bottom surface of the cylindrical workpiece groove body to the top surface of the small diameter cylinder, and the width of the bottom surface of the avoidance groove is set to match the width of the bottom surface of the groove body. When the cutting edge contacts the end face of the cylindrical workpiece, the part of the cylindrical workpiece groove body is avoided by the avoidance groove, and the second cutting tip is simultaneously in contact with the outer peripheral wall of the large diameter cylinder and is in a position corresponding to its top end face. The cutter is fed into the axial direction of the cylindrical workpiece through the cutter grain, and the cutting edge cuts out the groove body while trimming the outer peripheral wall of the formed small diameter cylinder through the first cutting tip, and trimming the outer peripheral wall of the formed large diameter cylinder through the second cutting tip. A cutter grain is used to combine three cutting parts to realize simultaneous grooving of the cylindrical workpiece and trimming of the outer peripheral walls of the two cylinders of large and small diameters. It is adapted to the drive feed of the cam machine tool, has high efficiency and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a cylindrical workpiece in the background technology.

[0011] Figure 2 This is a front view of a grooving tool applied to a cam machine tool according to this embodiment.

[0012] Figure 3 This is a side view of a grooving tool applied to a cam machine tool according to this embodiment.

[0013] Figure 4 for Figure 3 Enlarged view of position A in the middle.

[0014] Figure numerals: 1. cylindrical workpiece; 11. trough body; 12. small-diameter cylinder; 13. large-diameter cylinder; 2. base body; 31. bolt hole; 3. cutter head; 31. air-avoidance groove; 32. first inclined surface; 33. cutting edge; 34. second inclined surface; 341. arc-shaped groove; 35. third inclined surface; 36. fourth inclined surface; 37. first cutting tip; 38. second cutting tip; 39. front cutting edge. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] See also Figure 2 and Figure 3, a grooving knife particle used in a cam machine tool, includes a base 2, the base 2 is set in a parallelogram with two opposite corner ends cut off, and the base 2 is formed with a knife head 3 at the two corner ends of the cut off, the two side surfaces in the thickness direction of the two knife heads 3 are respectively the front and the back, and the two side surfaces in the width direction of the knife head 3 are respectively tangent to the two intersecting surfaces of the corner ends of the parallelogram base 2 and are arranged flush, the back side of the knife head 3 is cut and flush with the back side of the parallelogram base 2, the thickness of the knife head 3 is less than the thickness of the base 2, so that the knife particle as a whole is light and flexible, and the top of the knife head 3 is recessed on one side of the front side with an air avoidance groove 31 extending along its own width direction and passing through itself, the air avoidance groove 31 extends to the top surface of the knife head 3, and the bottom surface of the air avoidance groove 31 is a first The inclined surface 32, the first inclined surface 32 is inclined along one side of its width direction as the starting side toward the direction of the base 2, so that the side edge is formed into a cutting edge 33, the side wall surface of the avoidance groove 31 is a second inclined surface 34 with the side edge overlapping with the top surface of the cutter head 3 as the starting side toward the other side of the cutter head 3, the top surface of the cutter head 3 is a third inclined surface 35 with the side edge overlapped by the second inclined surface 34 as the starting side toward the direction of the base 2, the side surface of the cutter head 3 extending toward the base 2 on the outer side of the first inclined surface 32 is a fourth inclined surface 36, the fourth inclined surface 36 is inclined toward the starting side toward the base 2 from the outer side of the first inclined surface 32, and the corner end where the first inclined surface 32 and the fourth inclined surface 36 intersect is formed into a first cutting tip 37 The corner end where the second inclined surface 34 and the third inclined surface 35 intersect is formed into a second cutting tip 38. The first cutting tip 37, the second cutting tip 38 and the front cutting surface 39 of the cutting edge 33 are coplanar. The front cutting surface 39 is the front face of the cutter head 3. The width of the bottom surface of the avoidance groove 31 is set to match the width of the bottom surface of the groove body to be machined of the cylindrical workpiece, so that the cutting edge 33 cuts out the groove body from the end face of the cylindrical workpiece to form two cylinders with large and small diameters. The depth of the avoidance groove 31 is set to match the distance from the bottom surface of the cylindrical workpiece groove body to the top surface of the small-diameter cylinder, so that the avoidance groove 31 avoids part of the cylindrical workpiece groove body, so that the second cutting tip 38 can simultaneously contact the large diameter cylinder when the cutting edge 33 contacts the end face of the cylindrical workpiece. The outer wall of the diameter cylinder is in a position corresponding to its top end surface. The cutting tip of the first cutting tip 37 is outside the bottom surface of the avoidance groove 31, so that the cutter grain feeds in the axial direction of the cylindrical workpiece. The cutting edge 33 cuts out the groove body while trimming the outer peripheral wall of the small diameter cylinder formed. The second cutting tip 38 also moves in the axial direction of the cylindrical workpiece to realize the trimming of the outer peripheral wall of the large diameter cylinder formed. The present application realizes the simultaneous grooving of the cylindrical workpiece and the trimming of the outer peripheral walls of the two cylinders of large and small diameters formed by a cutter grain assembly into three cutting parts. It is adapted to the drive feed of the cam machine tool, has high efficiency and low cost, and further reduces the processing cost by the design of supporting two cutter heads 3 through a base 2.

[0017] The inclination angles of the first inclined surface 32, the second inclined surface 34, the third inclined surface 35 and the fourth inclined surface 36 are all 2-8°. Through multiple experiments by the inventors, the inclination angles of the inclined surfaces in the range of 2-8° can achieve better avoidance of the workpiece processing surface while making the first cutting tip 37, the cutting edge 33 and the second cutting tip 38 have good rigidity and strength, and the tool particles are not easily worn.

[0018] See also Figure 2 A bolt hole 21 is provided in the middle of the base 2, and the blade is fixed to the external handle by bolt locking through the bolt hole 21, which is convenient and practical.

[0019] See also Figure 3 The cutter head 3 is provided with an arc-shaped groove 341 running through the second inclined surface 34. The groove surface of the arc-shaped groove 341 is tangent to the second inclined surface 34. The arc-shaped groove 341 avoids the edge of the end face of the cylindrical workpiece, which is beneficial to reduce the interference between the workpiece and the cutter particles, making the cutting process of the workpiece smoother.

[0020] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A grooving blade for a cam machine tool, characterized by: The invention comprises a base body, both ends of which are formed with a cutting head, and a clearance groove is concavely provided on one side of the top of each cutting head and passes through the same, and the clearance groove extends to the top surface of the cutting head, and the bottom surface of the clearance groove is a first inclined surface, and the first inclined surface is inclined toward the direction of the base body from one side of its width direction as the starting side, and the side edge is formed as a cutting edge, and the side wall surface of the clearance groove is a second inclined surface inclined toward the other side of the cutting head from the side edge overlapping with the top surface of the cutting head as the starting side, and the top surface of the cutting head is inclined from the second inclined surface The side edge of the overlapping surfaces is a third inclined surface inclined from the starting side toward the direction of the base, and a side surface on the tool head extending from the outer side of the first inclined surface toward the direction of the base is a fourth inclined surface. The fourth inclined surface is inclined from the outer side of the first inclined surface toward the starting side toward the direction of the base, and an angle end where the first inclined surface intersects with the fourth inclined surface is formed as a first cutting tip, and an angle end where the second inclined surface intersects with the third inclined surface is formed as a second cutting tip, and the first cutting tip, the second cutting tip and the front cutting edge face are coplanar.

2. The grooving blade for cam machine tools according to claim 1, characterized in that: The inclination angles of the first inclined surface, the second inclined surface, the third inclined surface and the fourth inclined surface are all 2-8°.

3. The grooving blade for cam machine tools according to claim 1, characterized in that: A bolt hole is provided in the middle of the base.

4. The grooving blade for cam machine tools according to claim 1, characterized in that: The cutter head is provided with an arc-shaped groove on the second inclined surface which penetrates the thickness of the cutter head, and the groove surface of the arc-shaped groove is tangent to the second inclined surface.

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