CN111922423B - Combined type hook cutter for machining main pin hole of steering knuckle and machining method for main pin hole of steering knuckle - Google Patents
Combined type hook cutter for machining main pin hole of steering knuckle and machining method for main pin hole of steering knuckle Download PDFInfo
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- CN111922423B CN111922423B CN202010598293.3A CN202010598293A CN111922423B CN 111922423 B CN111922423 B CN 111922423B CN 202010598293 A CN202010598293 A CN 202010598293A CN 111922423 B CN111922423 B CN 111922423B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D43/00—Broaching tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/12—Cutters specially designed for producing particular profiles
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Abstract
The invention relates to the technical field of steering knuckle processing and discloses a combined type hooking cutter for processing a steering knuckle main pin hole and a steering knuckle main pin hole processing method, wherein the combined type hooking cutter comprises a first hooking cutter, a second hooking cutter and an inverse milling cutter, the first hooking cutter comprises a first handle part, a first cutter bar and a first hooking cutter head, and a first bottom cutting edge on the first hooking cutter head is vertical to the axis of the first handle part; the second hook cutter comprises a second handle part, a second cutter bar and a second hook cutter head, and a second bottom cutting edge on the second hook cutter head is vertical to the axle center of the second handle part; the reverse milling cutter comprises a third handle part, a third cutter bar and a reverse milling cutter head, and a third peripheral cutting edge on the reverse milling cutter head is parallel to the axis of the third handle part. The invention has the following advantages and effects: the first hook cutter and the second hook cutter move linearly in the machining process, the hook cutters only need to retreat back from the main pin holes in the opposite direction to be machined in place, the machining time is shortened from original 10min to 2-3min, and the machining efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of steering knuckle processing, in particular to a combined type hook cutter for processing a main pin hole of a steering knuckle and a method for processing the main pin hole of the steering knuckle.
Background
The steering knuckle is also called as a cleat, is one of important parts in an automobile steering axle, and can enable an automobile to stably run and sensitively transmit the running direction. The steering knuckle is used for transmitting and bearing the front load of the automobile, supporting and driving the front wheel to rotate around the main pin so as to steer the automobile. In the driving state of the vehicle, it is subjected to a variable impact load, and therefore, it is required to have a high strength.
As shown in fig. 4, the knuckle z includes a master pin hole z2, and during machining, the root portion z1 of the knuckle blank needs to be chamfered, the master pin hole z2 needs to be finished to ensure that the inner diameter of the master pin hole reaches a set value, and the perpendicularity of the inner surface z3 of the master pin hole and the end surface z4 is ensured to be at ≠ 0.08. At present, when a machining mode of a main pin hole z2 is adopted, the position of a steering knuckle z is firstly fixed, then a reamer is used for reaming the main pin hole z2, the machining process needs about 10 minutes, the machining efficiency is low, the diameter of a cutter head of the reamer head cannot exceed the set inner diameter of the main pin hole z2, and chamfering cannot be carried out on the root z1 of the main pin hole, so that other cutters are further used for machining the root z1 of the main pin hole.
Disclosure of Invention
The invention aims to provide a combined type hook cutter for machining a main pin hole of a steering knuckle and a method for machining the main pin hole of the steering knuckle, and the combined type hook cutter and the method have the effects of high machining efficiency and high machining precision.
The technical purpose of the invention is realized by the following technical scheme: the cutter comprises a first hooking cutter, a second hooking cutter and a reverse milling cutter, wherein the first hooking cutter comprises a first handle part, an L-shaped first cutter bar fixed on the first handle part, and a first hooking cutter head detachably connected to the side part of one end, far away from the first handle part, of the first cutter bar, a first peripheral cutting edge is arranged on the periphery of the first hooking cutter head, a first bottom cutting edge is arranged at one end, far away from the first handle part, of the first hooking cutter head, and the first bottom cutting edge is perpendicular to the axis of the first handle part;
the second hook cutter comprises a second handle part, an L-shaped second cutter bar fixed on the second handle part and a second hook cutter head detachably connected to the second cutter bar and far away from the side part of one end of the second handle part, a second peripheral cutting edge is arranged on the periphery of the second hook cutter head, a second bottom cutting edge is arranged at one end far away from the second handle part, the second bottom cutting edge is perpendicular to the axis of the second handle part, and the perpendicular distance from the first peripheral cutting edge to the axis of the first handle part is smaller than the perpendicular distance from the second peripheral cutting edge to the axis of the second handle part;
the reverse milling cutter comprises a third handle part, a third cutter rod which is L-shaped and is fixed on the third handle part, and the third cutter rod can be detachably connected with the reverse milling cutter head on one end side part of the third handle part, a third peripheral cutting edge is arranged on the periphery of the reverse milling cutter head and is kept away from the third handle part, a third bottom cutting edge is arranged on one end of the third handle part, the third peripheral cutting edge is parallel to the axis of the third handle part, and the third peripheral cutting edge is equal to the second peripheral cutting edge from the second handle part along the axis of the third handle part along the vertical distance.
The invention is further provided with: the first hook tool bit is provided with a first corner R cutting edge which connects the first peripheral cutting edge with the first bottom cutting edge, and the radius of the first corner R cutting edge is 0.6-1.0 mm.
The invention is further provided with: and a second corner R cutting edge which connects the second peripheral cutting edge with the second bottom cutting edge is arranged on the second hook cutter head, and the radius of the second corner R cutting edge is 0.6-1.0 mm.
The invention is further provided with: and a third corner R cutting edge which connects the third peripheral cutting edge with the third bottom cutting edge is arranged on the reverse milling cutter head, and the radius of the third corner R cutting edge is 3-3.5 mm.
The invention is further provided with: the cross sections of the first cutter bar and the second cutter bar are both elliptical.
The invention is further provided with: the first cutter bar, the second cutter bar and the third cutter bar are all made of heavy metal alloy.
The invention is further provided with: the first handle part is a side-fixed type knife handle.
The invention is further provided with: the second handle is a CAPTO-C6 knife handle.
The invention is further provided with: the combined type hook cutter processing method for processing the main pin hole of the steering knuckle is characterized by comprising the following steps of: the method comprises the following steps:
s1, fixing the first handle part and the steering knuckle to make the axle center of the first handle part coincide with the axle center of a main pin hole of the steering knuckle;
s2, moving the first handle part to enable the first hooking cutter head to penetrate through a main pin hole of the steering knuckle, then moving the first handle part to enable the axle center of the first handle part to coincide with the axle center of the main pin hole of the steering knuckle, and then rotating the first handle part and enabling the first hooking cutter head to drive the first hooking cutter head to move along the axle center direction of the first handle part to withdraw from the main pin hole of the steering knuckle to process the inner diameter of the main pin hole of the steering knuckle so as to enable the inner diameter of the main pin hole of the steering knuckle to be enlarged;
s3, detaching the first handle part and mounting the second handle part to make the axle center of the second handle part coincide with the axle center of the main pin hole of the steering knuckle;
s4, moving the second handle part to enable the second hook cutter head to penetrate through the main pin hole of the steering knuckle, then moving the second handle part to enable the axle center of the second handle part to coincide with the axle center of the main pin hole of the steering knuckle, and then rotating the second handle part and simultaneously driving the second hook cutter head to move along the axle center direction of the second handle part to withdraw from the main pin hole of the steering knuckle to further process the inner diameter of the main pin hole of the steering knuckle, so that the inner diameter of the main pin hole of the steering knuckle reaches a set value;
s5, detaching the second handle part and mounting a third handle part to make the third handle part coincide with the axle center of the main pin hole of the steering knuckle;
s6, moving the third handle part to enable the reverse milling cutter head to penetrate through the main pin hole of the knuckle, then moving the third handle part to a set position, rotating the third handle part to enable a third corner R cutting edge on the reverse milling cutter head to chamfer the root of the main pin hole of the knuckle, then transversely moving the third handle part to enable the axis of the third handle part to coincide with the axis of the main pin hole of the knuckle, and rotating the third handle part while driving the reverse milling cutter head to move along the axis direction of the third handle part to exit from the inner surface of the main pin hole of the knuckle for finish machining, so that the perpendicularity between the inner surface of the main pin hole of the knuckle and the end surface is perpendicular to 0.08. .
The invention has the beneficial effects that:
1. the original reverse milling process is changed into a reverse drawing and reverse milling process, partial allowance is removed firstly by utilizing the reverse drawing of the first hooking cutter, and then the reverse milling cutter is adopted for reverse milling and finish machining to ensure the planeness and the root fillet, so that the machining efficiency is improved.
2. The first hooking cutter, the second hooking cutter and the reverse milling cutter are adopted to process the main pin hole, the first hooking cutter and the second hooking cutter move linearly in the processing process, the main pin hole can be processed in place only by inserting the hooking cutters into the main pin hole and then retreating the hooking cutters out of the main pin hole in the opposite direction, the first hooking cutter is rough processed, the second hooking cutter and the reverse milling cutter are finish processed, the fine and coarse cutters are separated, the fine and coarse processing adopts different processing modes and different blades, the optimal efficiency is achieved by the aid of the respective fine and coarse processing methods, the processing time can be shortened from original 10min to 2-3min, and the processing efficiency is greatly improved.
3. A third peripheral cutting edge on the reverse milling cutter head is parallel to the axis of the third handle part, and the inner surface of the main pin hole can be further finely processed, so that the perpendicularity between the inner surface of the main pin hole and the end surface reaches inverted T0.08; the reverse milling cutter head is also provided with a third corner cutting edge with the radius of 3-3.5 mm, the root of the main pin hole can be chamfered, the operation is convenient, and the processing precision is high.
4. The cross sections of the first cutter bar and the second cutter bar are elliptical, so that the volumes of the first cutter bar and the second cutter bar can be increased, the cutter bars are more stable in the machining process, the jumping shake of the cutter point is reduced, and the machining precision is improved.
5. First cutter arbor, second cutter arbor and third cutter arbor are heavy metal alloy, can improve the rigidity of first cutter arbor, second cutter arbor and third cutter arbor, and it is good to inhale the ability, can accelerate the rate of processing.
6. The first hooking cutter is fixed on a cutter holder of a machining lathe through the side fixing type cutter handle, the side fixing type cutter handle is high in clamping degree and concentricity, strong in directivity and convenient to disassemble and assemble, the machining speed of the first hooking cutter can be guaranteed by adopting the side fixing type cutter handle when the hole diameter of the main pin hole is machined for the first time, the cutter is convenient to replace, and the machining efficiency is improved; the second hooking cutter adopts a CAPTO-C6 cutter handle, so that the accessibility of the cutter head of the second hooking cutter is good, the processing precision of the second hooking cutter is ensured, and the first hooking cutter and the second hooking cutter are jointly used, so that the processing of the master pin hole can be quickly and accurately realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of the first hook blade of this embodiment.
Fig. 2 is a schematic structural view of the second hook blade of the present embodiment.
Fig. 3 is a schematic structural view of a third hook blade of the present embodiment.
Fig. 4 is a schematic view of a knuckle structure.
In the figure, 1, a first hook knife; 11. a first handle; 12. a first cutter bar; 13. a first hooking cutter head; 131. a first peripheral cutting edge; 132. a first bottom cutting edge; 133. a first corner R cutting edge;
2. a second hook cutter; 21. a second handle; 22. a second cutter bar; 23. a second hooking cutter head; 231. a second peripheral cutting edge; 232. a second bottom cutting edge; 233. a second corner R cutting edge;
3. a reverse milling cutter; 31. a third handle portion; 32. a third cutter bar; 33. a reverse milling head; 331. a third peripheral cutting edge; 332. a third bottom cutting edge; 333. a third corner R cutting edge;
z, a knuckle; z1, root; z2, king pin hole; z3, inner surface; z4, end face.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example (b): as shown in fig. 4, the fillet radius of the root z1 of the knuckle z blank to be processed is 5mm, the fillet radius needs to be processed to be 3.2mm, the inner hole diameter of the king pin hole z2 needs to be processed to be 92mm, and the allowance of the end face z4 of the king pin hole z2 is 3-4 mm. A combined type hook cutter for processing a king pin hole z2 of a steering knuckle z, as shown in fig. 1-3, comprising a first hook cutter 1, a second hook cutter 2 and a reverse milling cutter 3, wherein the first hook cutter 1 comprises a first handle part 11, the first handle part 11 is a side-fixed type cutter handle, a first cutter rod 12 is fixed on the first handle part 11, the cross section of the first cutter rod 12 is elliptical, the first cutter rod 12 is made of tungsten alloy, one end of the first cutter rod 12, which is far away from the first handle part 11, is bent into an L-shaped elbow, a first hook cutter 1 is fixed on the L-shaped elbow through a bolt, a first peripheral cutting edge 131 is arranged on the periphery of the first hook cutter 1, the vertical distance between the outer side of the first peripheral cutting edge 131 and the axis of the first handle part 11 is 39mm, a first bottom cutting edge 132 is arranged at the end, which is far away from the first handle part 11, the first peripheral cutting edge 131 and the first bottom cutting edge 132 are connected by a first corner R cutting edge 133, the radius of the first corner R cutting edge 133 is 0.8mm, the first corner R cutting edge 133 can reduce the stress of the tool nose of the tool bit and avoid edge breakage; the first bottom cutting edge 132 is perpendicular to the axis of the first handle 11, the first peripheral cutting edge 131 is arc-shaped, the first bottom cutting edge 132 of the hook cutter expands the inner diameter of a king pin hole z2, a certain allowance is reserved for the inner diameter of a king pin hole z2 of a turning knuckle z blank, the first bottom cutting edge 132 is in surface contact with the allowance of the inner diameter of the king pin hole z2, and the allowance of the blank of the turning knuckle z can be quickly removed in the machining process of the first hook cutter 1, so that the inner diameter of the king pin hole z2 is 78 mm.
As shown in fig. 2, the second hook cutter 2 includes a second shank 21, the second shank 21 is a CAPTO-C6 cutter holder, a second cutter bar 22 is fixed on the second shank 21, the cross section of the second cutter bar 22 is elliptical, the second cutter bar 22 is made of tungsten alloy, one end of the second cutter bar 22 away from the second shank 21 is bent into an L-shaped elbow, a second hook cutter 2 head is fixed on the L-shaped elbow by a bolt, a second peripheral cutting edge 231 is arranged on the periphery of the second hook cutter 2 head, the perpendicular distance between the outer side of the second peripheral cutting edge 231 and the axis of the second shank 21 is 46mm, a second bottom cutting edge 232 is arranged on one end away from the second shank 21, the second peripheral cutting edge 231 and the second bottom cutting edge 232 are connected by a second corner R cutting edge 233, the radius of the second corner R cutting edge 233 is 0.8mm, and the second corner R cutting edge 233 is arranged to reduce the stress of the cutter head, avoiding tipping; the second bottom cutting edge 232 is perpendicular to the axis of the second shank 21, the second peripheral cutting edge 231 is arc-shaped, and the inner diameter of the king pin hole z2 is further enlarged by the second bottom cutting edge 232 of the hook cutter, and the inner diameter of the king pin hole z2 reaches 92 mm.
As shown in fig. 3, the reverse milling cutter 3 includes a third shank 31, a third cutter bar 32 is fixed to the third shank 31, the third cutter bar 32 is made of tungsten alloy, one end of the third cutter bar 32, which is far away from the third shank, is bent into an L-shaped bend, an end of the L-shaped bend is fixed to a reverse milling cutter 3 head through a bolt, a third peripheral cutting edge 331 is arranged on the periphery of the end of the reverse milling cutter 3 head, a third bottom cutting edge 332 is arranged on one end of the reverse milling cutter 3 head, which is far away from the third shank 31, the third peripheral cutting edge 331 is parallel to the axis of the third shank 31, the perpendicular distance between the outer side of the third peripheral cutting edge 331 and the axis of the third shank 31 is 46mm, and the third peripheral cutting edge 331 can finish-machine the perpendicularity of the inner surface 3 of the main pin hole z2, so that the perpendicularity of the inner surface z3 of the main pin hole z2 and the end surface z4 is reverse 0.08; the third peripheral cutting edge 331 and the third bottom cutting edge 332 are connected by a third corner R cutting edge 333; the third corner R cutting edge 333 radius is 3.1mm and the knuckle z root z1 fillet radius can be machined to the desired 3.1 mm.
The invention also provides a method for machining the main pin hole of the steering knuckle by using the combined type hook cutter for machining the main pin hole of the steering knuckle, which comprises the following steps of:
s1, fixing the first handle part 11 and the knuckle z to make the axle center of the first handle part 11 coincide with the axle center of a main pin hole z2 of the knuckle z;
s2, transversely moving the first handle part 11 to enable the axle center of the first handle part 11 and the axle center of a main pin hole z2 of a steering knuckle z to deviate a certain distance, then moving the first hooking cutter head 13 to a set position, rotating the first handle part 11 to remove the allowance of the root z1 of the main pin hole of the steering knuckle, then longitudinally moving the first handle part 11 to enable the first hooking cutter 1 to penetrate through the main pin hole z2 of the steering knuckle, then transversely moving the first handle part 11 to enable the axle center of the first handle part 11 to be overlapped with the axle center of the main pin hole z2 of the steering knuckle, and finally rotating the first handle part 11 and simultaneously driving the first handle part 11 to drive the first hooking cutter 1 to longitudinally move to exit the main pin hole z2 of the steering knuckle, wherein the first hooking cutter 1 processes the inner diameter of the main pin hole z2 of the steering knuckle, and enables the inner diameter of the main pin hole z2 of the steering knuckle to reach 78 mm;
s3, detaching the first handle part 11 and mounting the second handle part 21, making the axle center of the second handle part 21 coincide with the axle center of the steering knuckle main pin hole z 2;
s4, transversely moving the second handle part 21 to enable the axle center of the second handle part 21 and the axle center of a steering knuckle main pin hole z2 to deviate for a certain distance, then longitudinally moving the second handle part 21 to enable the second hooking cutter 2 head to penetrate through the steering knuckle main pin hole z2, then transversely moving the second handle part 21 to enable the axle center of the second handle part 21 and the axle center of a steering knuckle main pin hole z2 to be coincided, finally rotating the second handle part 21 and enabling the second handle part 21 to drive the second hooking cutter 2 head to longitudinally move to exit the steering knuckle main pin hole z2, and further processing the inner diameter of the steering knuckle main pin hole z2 by the second hooking cutter 2 head to enable the inner diameter of the steering knuckle main pin hole z2 to reach 92 mm;
s5, removing the second shank 21 and attaching the third shank 31 such that the third shank 31 overlaps the spindle center of the knuckle king pin hole z 2;
s6, moving the third shank 31 laterally to make the axis of the third shank 31 offset a certain distance from the axis of the knuckle king pin hole z2, then moving the third shank 31 longitudinally to make the end mill 3 pass through the knuckle king pin hole z2, then moving the third shank 31 laterally to a set position, rotating the third shank 31 to make the third corner R cutting edge 333 on the end mill 3 chamfer the knuckle king pin hole root z1 with a knuckle king pin hole root z1 fillet radius of 3.2mm, finally moving the third shank 31 laterally to make the axis of the third shank 31 coincide with the axis of the knuckle king pin hole z2, rotating the third shank 31 while the third shank 31 drives the end mill 3 to move longitudinally to exit the knuckle z2, and finishing the inner surface z3 of the knuckle king pin hole z2 by the end mill 3 to make the inner surface z3 of the knuckle king pin hole perpendicular to the end surface z4 be at plus 0.08.
The combined type hooking cutter for machining the steering knuckle main pin hole z2 provided by the invention is used for machining the main pin hole z2 by adopting the first hooking cutter 1, the second hooking cutter 2 and the reverse milling cutter 3, when the inner diameter of the main pin hole z2 is enlarged, firstly, the first hooking cutter 1 is used for removing part of allowance, then, the second hooking cutter 2 is used for finish machining to enable the inner diameter of the main pin hole z2 to reach a set value, the first hooking cutter 1 and the second hooking cutter 2 are in surface contact with the z3 on the inner surface of the main pin hole z2, and the main pin hole z2 can be machined in place when the first hooking cutter 1 and the second hooking cutter 2 retreat out of the main pin hole z2, so that the machining time can be greatly shortened, and the machining efficiency is greatly improved; when a knuckle root z1 fillet is machined, firstly, a first hooking cutter 1 is adopted to remove the allowance of the knuckle root z1, then an inverse milling cutter 3 is adopted to perform finish machining, machining efficiency is high, the inverse milling cutter 3 can be adopted to simultaneously complete finish machining of a knuckle root z1 chamfer and the perpendicularity of a main pin hole z2 inner surface z3, and machining precision of a main pin hole z2 can be further improved.
Claims (8)
1. The combined hook cutter for machining the main pin hole of the steering knuckle is characterized in that: the cutter comprises a first hooking cutter (1), a second hooking cutter (2) and a reverse milling cutter (3), wherein the first hooking cutter (1) comprises a first handle part (11), an L-shaped first cutter bar (12) fixed on the first handle part (11), and a first hooking cutter head (13) detachably connected to the first cutter bar (12) and far away from the side part of one end of the first handle part (11), a first peripheral cutting edge (131) is arranged on the periphery of the first hooking cutter head (13), a first bottom cutting edge (132) is arranged at one end far away from the first handle part (11), and the first bottom cutting edge (132) is perpendicular to the axis of the first handle part (11);
the second hook cutter (2) comprises a second handle part (21), an L-shaped second cutter bar (22) fixed on the second handle part (21), and a second hook cutter head (23) detachably connected to the second cutter bar (22) and far away from the side part of one end of the second handle part (21), wherein a second peripheral cutting edge (231) is arranged on the periphery of the second hook cutter head (23), a second bottom cutting edge (232) is arranged at one end far away from the second handle part (21), the second bottom cutting edge (232) is perpendicular to the axis of the second handle part (21), and the perpendicular distance from the first peripheral cutting edge (131) to the axis of the first handle part (11) is smaller than the perpendicular distance from the second peripheral cutting edge (231) to the axis of the second handle part (21);
the reverse milling cutter (3) comprises a third handle part (31), an L-shaped third cutter bar (32) fixed on the third handle part (31), and a reverse milling cutter head (33) detachably connected to one end side part of the third cutter bar (32) far away from the third handle part (31), wherein a third outer peripheral cutting edge (331) is arranged on the outer periphery of the reverse milling cutter head (33), a third bottom cutting edge (332) is arranged at one end far away from the third handle part (31), the third outer peripheral cutting edge (331) is parallel to the axial center of the third handle part (31), and the vertical distance from the third outer peripheral cutting edge (331) to the axial center of the third handle part (31) is equal to the vertical distance from the second outer peripheral cutting edge (231) to the axial center of the second handle part (21);
the combined type hook cutter processing method for processing the main pin hole of the steering knuckle comprises the following steps:
s1, fixing the first handle part (11) and the knuckle (z) to make the axle center of the first handle part (11) coincide with the axle center of the knuckle king pin hole (z 2);
s2, moving the first handle part (11) to enable the head of the first hooking cutter (1) to penetrate through a kingpin hole (z 2) of a steering knuckle (z), then moving the first hooking cutter head (13) to a set position, rotating the first handle part (11) to remove the allowance of the kingpin hole root (z 1) of the steering knuckle, then moving the first handle part (11) to enable the axle center of the first handle part (11) to coincide with the axle center of the kingpin hole (z 2) of the steering knuckle (z), and then rotating the first handle part (11) and enabling the head of the first hooking cutter (1) to move along the axle center direction of the first handle part (11) to exit the kingpin hole (z 2) of the steering knuckle to machine the inner diameter of the kingpin hole (z 2) of the steering knuckle;
s3, detaching the first handle part (11) and mounting the second handle part (21) to make the axle center of the second handle part (21) coincide with the axle center of the steering knuckle main pin hole (z 2);
s4, moving the second handle part (21) to enable the head of the second hook cutter (2) to penetrate through a main pin hole (z 2) of the steering knuckle, then moving the second handle part (21) to enable the axis of the second handle part (21) to coincide with the axis of the main pin hole (z 2) of the steering knuckle, and then rotating the second handle part (21) and enabling the second handle part (21) to drive the head of the second hook cutter (2) to move along the axis direction of the second handle part (21) to exit the main pin hole (z 2) of the steering knuckle to further process the inner diameter of the main pin hole (z 2) of the steering knuckle;
s5, detaching the second handle part (21) and mounting the third handle part (31) to make the third handle part (31) and the spindle center of the steering knuckle king pin hole (z 2) coincide;
s6, moving the third shank (31) to enable the head of the reverse milling cutter (3) to penetrate through a main pin hole (z 2) of the steering knuckle, then moving the third shank (31) to a set position, rotating the third shank (31) to enable a third corner R cutting edge (333) on the head of the reverse milling cutter (3) to chamfer the root (z 1) of the main pin hole of the steering knuckle, then transversely moving the third shank (31) to enable the axle center of the third shank (31) to be overlapped with the axle center of the main pin hole (z 2) of the steering knuckle, rotating the third shank (31) and simultaneously enabling the head of the reverse milling cutter (3) to move along the axle center direction of the third shank (31) to be withdrawn from the main pin hole (z 2) of the steering knuckle, and carrying out finish machining on the inner surface (z 3) of the main pin hole of the steering knuckle.
2. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: be provided with on first colluding tool bit (13) with first periphery cutting edge (131) with first bottom cutting edge (132) connect up first corner R cutting edge 133, first corner R cutting edge (133) radius is 0.6mm ~1.0 mm.
3. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: the second collude tool bit (23) is provided with second outer peripheral cutting edge (231) with second bottom cutting edge (232) connected second corner R cutting edge (233), second corner R cutting edge (233) radius is 0.6mm ~1.0 mm.
4. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: the reverse milling cutter head (33) is provided with a third corner R cutting edge (333) which connects the third peripheral cutting edge (331) and the third bottom cutting edge (332), and the radius of the third corner R cutting edge (333) is 3 mm-3.5 mm.
5. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: the cross sections of the first cutter bar (12) and the second cutter bar (22) are both oval.
6. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: the first cutter bar (12), the second cutter bar (22) and the third cutter bar (32) are all made of heavy metal alloy.
7. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: the first handle part (11) is a side-fixed type knife handle.
8. The combined type hook cutter for machining the main pin hole of the steering knuckle according to claim 1, wherein the combined type hook cutter comprises: the second handle portion (21) is a CAPTO-C6 knife handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598293.3A CN111922423B (en) | 2020-06-28 | 2020-06-28 | Combined type hook cutter for machining main pin hole of steering knuckle and machining method for main pin hole of steering knuckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598293.3A CN111922423B (en) | 2020-06-28 | 2020-06-28 | Combined type hook cutter for machining main pin hole of steering knuckle and machining method for main pin hole of steering knuckle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111922423A CN111922423A (en) | 2020-11-13 |
| CN111922423B true CN111922423B (en) | 2022-03-11 |
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| CN112139516A (en) * | 2020-11-24 | 2020-12-29 | 万鑫精工(湖南)股份有限公司 | Planetary flange integrated machining device based on numerical control lathe |
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| JP2000141121A (en) * | 1998-11-11 | 2000-05-23 | Toyota Motor Corp | Rotary tool and inverted tapered hole working method using the same |
| CN202824700U (en) * | 2012-11-02 | 2013-03-27 | 杭州汽轮机股份有限公司 | Eccentric boring tool |
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