Combined cutter set for shaft head machining

Abstract

The invention discloses a shaft head machining combined sleeve cutter which comprises a sleeve cutter body and a center drill, the sleeve cutter body comprises a handle part and a head part, a mounting hole is formed in the center of the sleeve cutter body, and the mounting hole is used for mounting the center drill; a first mounting position and a second mounting position are symmetrically arranged at the front end of the head part, and a third mounting position is arranged at the position, close to the mounting hole, of the head part; the first blade is fixed by a first blade screw, the second blade is fixed by a second blade screw, and the square blade is fixed by a third blade screw; two chip grooves are symmetrically formed in the center drill along the central axis, the center drill is provided with a tool nose, and the center drill is provided with a cone edge and a cone protecting edge; and the mounting hole is provided with a thread at the rear end of the handle part and is used for mounting an adjusting screw rod. According to the combined cutter set for shaft head machining, efficient, accurate and high-cost-efficiency shaft head machining can be achieved, and the machining quality and the production efficiency are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of shaft head processing tools, and in particular relates to a shaft head processing combined tool set. Background Art

[0002] In the traditional field of shaft head processing, different tool distributions are usually used to process various parts of the shaft head. The tool needs to be replaced many times during the processing process, which is not only inefficient, but also difficult to ensure uniform precision of the shaft head processing each time, resulting in inconsistent processing precision of various parts of the same shaft head, affecting product quality. In addition, the tools in the prior art often lack sufficient stability and consistency during the processing process, resulting in inconsistent surface quality of the shaft head after processing, affecting the installation and processing of subsequent processes.

[0003] Existing spindle head machining tools also have some limitations in design. For example, many tools lack effective positioning and clamping mechanisms, which makes the center drill easily deviate during the machining process, affecting the machining accuracy. In addition, the tool blade replacement cost is high and the blade has a limited service life, which not only increases production costs but also increases the complexity of maintenance work. Summary of the invention

[0004] In order to overcome the problems of the prior art, the present invention designs a shaft head processing combined tool set, which can achieve efficient, accurate and cost-effective shaft head processing, and significantly improve processing quality and production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a shaft head processing combined tool set, comprising a tool set and a center drill, the tool set comprising a shank and a head, the tool set is provided with a mounting hole along the central axis, the mounting hole passes through the shank and the head, the mounting hole is used to install the center drill, and the top of the center drill is provided with a tool tip; the front end of the head is provided with a first mounting position and a second mounting position which are symmetrical in center, the first mounting position is used to install a first blade, the first blade is fixed at the first mounting position with a first blade screw, the second mounting position is used to install a second blade, the second blade is fixed at the second mounting position with a second blade screw, the first blade and the second blade have the same shape and size, and the first blade and the second blade are symmetrically arranged along the central axis of the tool set;

[0006] The head is provided with a third mounting position near the mounting hole, the third mounting position is used to mount a square blade, the square blade is fixed at the third mounting position by a third blade screw, and the square blade is used to cut the end face of the shaft head. The first blade and the second blade symmetrically arranged at the front end of the head provide a stable and symmetrical cutting force.

[0007] Furthermore, the first blade and the second blade are both circular blades, the circular blade is in the shape of a truncated cone, a threaded hole is provided in the center of the circular blade, the side with a smaller diameter of the truncated cone of the circular blade fits the head, and the edge of the side with a larger diameter of the truncated cone is a cutting edge for cutting the shaft head. The circular blade has a certain guiding function and high cutting edge rigidity and impact resistance, and is suitable for high-speed processing of forged steel parts, and the circular blade has a longer contact cutting edge, which improves the wear resistance of the cutting edge while also obtaining higher processing accuracy and surface quality.

[0008] Furthermore, the four edges of the square blade are all set as cutting edges, and the threaded hole for cooperating with the third blade screw is located at the center of the square blade; the square blade can be removed and reinstalled at the third installation position by rotating the angle to replace the cutting edge. The square blade is provided with four replaceable cutting edges. If one cutting edge is worn, the direction of the square blade can be changed and another cutting edge can be used, which increases the number of times the blade can be used and reduces the cost of using the blade.

[0009] Furthermore, the mounting hole is provided with a thread at the rear end of the handle for installing an adjusting screw, and the adjusting screw abuts against the end of the center drill to prevent the center drill from falling off from the rear end of the mounting hole.

[0010] Further, the head is provided with a pin hole, the pin hole passes through the mounting hole, a positioning pin is installed in the pin hole, a positioning plane is provided on one side of the chip removal groove on the circumference of the center drill, and when the positioning pin is inserted into the pin hole, the side surface of the positioning pin abuts against the positioning plane. The positioning pin abuts against the positioning plane of the center drill to prevent the center drill from rotating relative to the tool sleeve.

[0011] Furthermore, the head is provided with a hydraulic hole on the other side of the pin hole, the handle and the head are provided with a hydraulic cavity along the outer periphery of the mounting hole, the hydraulic hole is communicated with the hydraulic cavity, a sealing ring and a pressure column are provided in the hydraulic hole, the pressure column is provided with a clamping force by a clamping screw, and the pressure column passes through the sealing ring. Tightening the clamping screw can insert the pressure column into the hydraulic hole, change the oil pressure of the hydraulic cavity, and the part of the mounting hole provided with the hydraulic cavity is deformed inward to clamp the center drill.

[0012] Furthermore, it also includes a tightening screw, the end of the pin hole is provided with a thread, the tightening screw cooperates with the thread at the end of the pin hole, and the tightening screw tightens and fixes the positioning pin.

[0013] Furthermore, the center drill is symmetrically provided with two chip removal grooves along the center axis.

[0014] Furthermore, the center drill is provided with a cone blade and a cone protection blade.

[0015] The beneficial effects of the combined tool set for processing a shaft head of the present invention are as follows: the tool integrates multi-position processing in one body, is provided with a center drill, a circular blade and a square blade, can process different positions of the shaft head at the same time, has high processing consistency, and provides very high stability for the installation and processing of subsequent processes; the two circular blades symmetrically arranged at the front end provide stable and symmetrical cutting force, and the circular blades have a certain guiding effect and high edge stiffness and impact resistance, and are suitable for high-speed processing of forged steel parts, and the circular blades have a long contact edge, which improves the wear resistance of the edge and can also obtain high processing precision The square blade is designed to provide a cutting edge for machining the end face of the shaft head, and the blade cooperates with the center drill to form a vertical cutting edge; the square blade is provided with four replaceable cutting edges, which increases the number of times the square blade can be used, thereby reducing the cost of using the blade; the center drill with hydraulic clamping can adjust the size of the machined center hole through the adjusting screw at the rear end, and the tolerance range of the center hole size can be controlled each time the center hole is replaced through adjustment; the center drill is clamped with hydraulic clamping, which has better centering force and more uniform clamping force, so that the position accuracy of the machined center hole and the outer circle of the shaft head is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An exploded view of a combined tool set for machining a shaft head according to the present invention;

[0017] Figure 2 The present invention is a cross-sectional view of a combined tool set for machining a shaft head.

[0018] Among them, 1-knife set, 11-handle, 12-head, 121-first mounting position, 122-second mounting position, 123-third mounting position, 124-mounting hole, 125-pin hole, 1251-tightening screw, 126-hydraulic hole, 127-sealing ring, 128-pressure column, 129-tightening screw, 1210-hydraulic chamber, 2-center drill, 21-positioning plane, 22-chip groove, 23-knife tip, 24-taper blade, 25-taper blade guard, 3-adjusting screw, 4-first blade, 5-first blade screw, 6-second blade, 7-second blade screw, 8-square blade, 9-third blade screw, 10-locating pin. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-2As shown, the present invention is a shaft head processing combined tool set, comprising a tool set 1, a center drill 2, the tool set 1 comprising a shank 11 and a head 12, the tool set 1 is provided with a mounting hole 124 along the central axis, the mounting hole 124 passes through the shank 11 and the head 12, the mounting hole 124 is used to install the center drill 2, and a tool tip 23 is provided on the top of the center drill 2; the front end of the head 12 is provided with a first mounting position 121 and a second mounting position 122 which are symmetrical in center, the first mounting position 121 is used to install a first blade 4, the first blade 4 is fixed at the first mounting position 121 with a first blade screw 5, the second mounting position 122 is used to install a second blade 6, the second blade 6 is fixed at the second mounting position 122 with a second blade screw 7, the first blade 4 and the second blade 6 are the same in shape and size, and the first blade 4 and the second blade 6 are symmetrically arranged along the central axis of the tool set 1;

[0021] The head 12 is provided with a third mounting position 123 near the mounting hole 124. The third mounting position 123 is used to mount a square blade 8. The square blade 8 is fixed to the third mounting position 123 by a third blade screw 9. The square blade 8 is used to cut the end face of the shaft head. The first blade 4 and the second blade 6 symmetrically arranged at the front end of the head 12 provide a stable and symmetrical cutting force.

[0022] Furthermore, the first blade 4 and the second blade 6 are both circular blades, the circular blade is in the shape of a truncated cone, a threaded hole is provided in the center of the circular blade, the side with a smaller diameter of the truncated cone of the circular blade fits the head 12, and the edge of the side with a larger diameter of the truncated cone is a cutting edge for cutting the shaft head. The circular blade has a certain guiding function and high cutting edge rigidity and impact resistance, and is suitable for high-speed processing of forged steel parts, and the circular blade has a longer contact cutting edge, which improves the wear resistance of the cutting edge while also obtaining higher processing accuracy and surface quality.

[0023] Furthermore, the four edges of the square blade 8 are all set as cutting edges, and the threaded hole for cooperating with the third blade screw 9 is located at the center of the square blade 8; the square blade 8 can be removed and reinstalled at the third installation position 123 by rotating the angle to replace the cutting edge. The square blade 8 is provided with four replaceable cutting edges. If one cutting edge is worn, the direction of the square blade 8 can be changed to use another cutting edge, which increases the number of times the blade can be used, thereby reducing the cost of using the blade.

[0024] Furthermore, the mounting hole 124 is provided with threads at the rear end of the handle 11 for mounting the adjusting screw 3, and the adjusting screw 3 abuts against the end of the center drill 2 to prevent the center drill 2 from falling off from the rear end of the mounting hole 124.

[0025] Further, the head 12 is provided with a pin hole 125, the pin hole 125 passes through the mounting hole 124, the pin hole 125 is installed with a positioning pin 10, the center drill 2 is provided with a positioning plane 21 on one side of the chip groove 22 on the circumference, and when the positioning pin 10 is inserted into the pin hole 125, the side of the positioning pin 12 abuts against the positioning plane 21. The positioning pin 12 abuts against the positioning plane 21 of the center drill 2 to prevent the center drill 2 from rotating relative to the tool sleeve 1.

[0026] Furthermore, the head 12 is provided with a hydraulic hole 126 at the other side of the pin hole 125, and a hydraulic cavity 1210 is provided inside the handle 11 and the head 12 along the outer periphery of the mounting hole 124, and the hydraulic hole 126 is communicated with the hydraulic cavity 1210, and a sealing ring 127 and a pressure column 128 are provided in the hydraulic hole 126, and the pressure column 128 is provided with a pressing force by a clamping screw 129, and the pressure column 128 passes through the sealing ring 127. Tightening the clamping screw 129 can insert the pressure column 128 into the hydraulic hole 126, change the oil pressure of the hydraulic cavity 1210, and the part of the mounting hole 124 provided with the hydraulic cavity 1210 is deformed inward to clamp the center drill 2.

[0027] Furthermore, it also includes a tightening screw 1251. The end of the pin hole 125 is provided with a thread. The tightening screw 1251 cooperates with the thread at the end of the pin hole 125. The tightening screw 1251 tightens and fixes the positioning pin 10.

[0028] Furthermore, the center drill 2 is symmetrically provided with two chip removal grooves 22 along the center axis.

[0029] Furthermore, the center drill 2 is provided with a cone blade 24 and a cone protection blade 25 .

[0030] The beneficial effects of the combined tool set for processing a shaft head of the present invention are as follows: the tool integrates multi-position processing in one body, is provided with a center drill, a circular blade and a square blade, can process different positions of the shaft head at the same time, has high processing consistency, and provides very high stability for the installation and processing of subsequent processes; the two circular blades symmetrically arranged at the front end provide stable and symmetrical cutting force, and the circular blades have a certain guiding effect and high edge stiffness and impact resistance, and are suitable for high-speed processing of forged steel parts, and the circular blades have a long contact edge, which improves the wear resistance of the edge and can also obtain high processing precision The square blade is designed to provide a cutting edge for machining the end face of the shaft head, and the blade cooperates with the center drill to form a vertical cutting edge; the square blade is provided with four replaceable cutting edges, which increases the number of times the square blade can be used, thereby reducing the cost of using the blade; the center drill with hydraulic clamping can adjust the size of the machined center hole through the adjusting screw at the rear end, and the tolerance range of the center hole size can be controlled each time the center hole is replaced through adjustment; the center drill is clamped with hydraulic clamping, which has better centering force and more uniform clamping force, so that the position accuracy of the machined center hole and the outer circle of the shaft head is higher.

[0031] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual content is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. A combined tool set for shaft head processing, characterized in that: The invention comprises a tool sleeve (1) and a center drill (2), wherein the tool sleeve (1) comprises a handle (11) and a head (12), and the tool sleeve (1) is provided with a mounting hole (124) along the central axis, wherein the mounting hole (124) passes through the handle (11) and the head (12), and the mounting hole (124) is used to mount the center drill (2), and a tool tip (23) is provided at the top of the center drill (2); a first mounting position (121) and a second mounting position (122) are provided at the front end of the head (12), and the first mounting position (121) and the second mounting position (122) are symmetrical with each other. The mounting position (121) is used to mount a first blade (4), the first blade (4) being fixed at the first mounting position (121) by a first blade screw (5), the second mounting position (122) is used to mount a second blade (6), the second blade (6) being fixed at the second mounting position (122) by a second blade screw (7), the first blade (4) and the second blade (6) having the same shape and size, and the first blade (4) and the second blade (6) being centrally symmetrically arranged along the central axis of the knife set (1); The head (12) is provided with a third mounting position (123) near the mounting hole (124), and the third mounting position (123) is used to mount a square blade (8). The square blade (8) is fixed to the third mounting position (123) by a third blade screw (9), and the square blade (8) is used to cut the end face of the shaft head.

2. The combined tool set for machining a shaft head according to claim 1, characterized in that: The first blade (4) and the second blade (6) are both circular blades, each of which is in the shape of a frustum, with a threaded hole provided at the center of the circular blade. The side of the frustum of the circular blade with a smaller diameter fits the head (12), and the edge of the side of the frustum with a larger diameter is a cutting edge for cutting the shaft head.

3. The combined tool set for machining a shaft head according to claim 1, characterized in that: The four edges of the square blade (8) are all set as cutting edges, and the threaded hole used to cooperate with the third blade screw (9) is located at the center of the square blade (8); the square blade (8) can be removed and rotated to an angle and reinstalled at the third installation position (123) to replace the cutting edge.

4. The combined tool set for machining a shaft head according to claim 1, characterized in that: The mounting hole (124) is located at the rear end of the handle (11) and is provided with a thread for mounting an adjusting screw (3), wherein the adjusting screw (3) abuts against the end of the center drill (2).

5. The combined tool set for machining a shaft head according to claim 1, characterized in that: The head (12) is provided with a pin hole (125), the pin hole (125) passes through the mounting hole (124), a positioning pin (10) is installed in the pin hole (125), and the center drill (2) is provided with a positioning plane (21) on one side of the chip groove (22) on the circumference, and when the positioning pin (10) is inserted into the pin hole (125), the side surface of the positioning pin (12) abuts against the positioning plane (21).

6. The combined tool set for machining a shaft head according to claim 5, characterized in that: The head (12) is provided with a hydraulic hole (126) on the other side of the pin hole (125); the handle (11) and the head (12) are provided with a hydraulic cavity (1210) along the outer periphery of the mounting hole (124); the hydraulic hole (126) is communicated with the hydraulic cavity (1210); a sealing ring (127) and a pressure column (128) are provided in the hydraulic hole (126); the pressure column (128) is provided with a clamping force by a clamping screw (129); and the pressure column (128) passes through the sealing ring (127).

7. The combined tool set for machining a shaft head according to claim 5, characterized in that: It also includes a tightening screw (1251), the end of the pin hole (125) is provided with a thread, the tightening screw (1251) cooperates with the thread at the end of the pin hole (125), and the tightening screw (1251) tightens and fixes the positioning pin (10).

8. The combined tool set for machining a shaft head according to claim 1, characterized in that: The center drill (2) is symmetrically provided with two chip removal grooves (22) along the center axis.

9. The combined tool set for machining a shaft head according to claim 1, characterized in that: The center drill (2) is provided with a cone blade (24) and a cone protection blade (25).

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