CN211161970U - PCD (Poly Crystal Diamond) forming cutter for automobile steering shell - Google Patents
PCD (Poly Crystal Diamond) forming cutter for automobile steering shell Download PDFInfo
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- CN211161970U CN211161970U CN201922324062.9U CN201922324062U CN211161970U CN 211161970 U CN211161970 U CN 211161970U CN 201922324062 U CN201922324062 U CN 201922324062U CN 211161970 U CN211161970 U CN 211161970U
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- concave ring
- cutter
- chamfer
- forming blade
- forming
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Abstract
The utility model provides a PCD (Poly Crystal Diamond) forming cutter for an automobile steering shell, which comprises a cutter handle, a first cutter rod and a second cutter rod, wherein the first cutter rod and the second cutter rod are connected on the cutter handle; the second cutter bar is of a cylindrical structure, one end of the second cutter bar extends into the U-shaped arm and is fixedly connected with the first cutter bar, the outer wall of the other end of the first cutter bar is provided with a convex concave ring A forming blade and a convex concave ring B forming blade, and the concave ring B forming blade is arranged on the second cutter bar between the concave ring A forming blade and the convex ring C forming blade; a plurality of blades are arranged on one cutter, so that the inner concave ring and the outer concave ring can be formed at one time, and the processing efficiency is improved; and the tool shank adopts an integrated structure to greatly increase the rigidity of the tool, prolong the service life of the tool and reduce the production cost.
Description
Technical Field
The utility model relates to a cutter technical field especially relates to a car turns to casing PCD shaping sword.
Background
The automobile steering device is the most important part in an automobile steering system, and mainly has the functions of increasing the moment transmitted by a steering wheel to a steering transmission mechanism and changing the transmission direction of force. The hole on the steering gear shell is more, different step surfaces and chamfers are arranged on the inner wall and the outer wall of the hole, as shown in fig. 1, the structure of a processing hole on the steering gear shell is adopted, two concave rings A and B are arranged on the inner wall of the hole, chamfers are arranged at the bottom and the edge of each concave ring, and a concave ring C is arranged on the outer wall of each concave ring; in addition, frequent replacement of the tool complicates the process and reduces the machining efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: in order to overcome the not enough among the prior art, the utility model provides an automobile steering casing PCD shaping sword, inside and outside wall processing one shot forming.
The utility model provides a technical scheme that its technical problem will adopt is: a PCD (Poly Crystal Diamond) forming cutter for an automobile steering shell comprises a cutter handle, a first cutter rod and a second cutter rod, wherein the first cutter rod and the second cutter rod are connected to the cutter handle; the second cutter bar is of a cylindrical structure, one end of the second cutter bar extends into the U-shaped arm and is fixedly connected with the first cutter bar, the outer wall of the other end of the first cutter bar is provided with an outward convex concave ring A forming blade and an inward concave ring B forming blade, and the inward concave ring B forming blade is arranged on the second cutter bar between the inward concave ring A forming blade and the outward concave ring C forming blade; wherein the content of the first and second substances,
each inner concave ring A forming blade comprises a concave ring A cutting edge, a concave ring A bottom chamfer edge and a concave ring A top chamfer edge, the concave ring A cutting edge protrudes out of the side wall of the second cutter bar, the concave ring A bottom chamfer edge and the concave ring A top chamfer edge are two and are respectively positioned on two sides of the inner concave ring A forming blade, the concave ring A bottom chamfer edge is connected with the concave ring A cutting edge, and the concave ring A top chamfer edge is formed on one side, close to the second cutter bar, of the inner concave ring A forming blade;
each inner concave ring B forming blade comprises a concave ring B cutting edge, a concave ring B bottom chamfer edge and a concave ring B top chamfer edge, the concave ring B cutting edge protrudes out of the side wall of the second cutter bar, the concave ring B bottom chamfer edge and the concave ring B top chamfer edge are two and are respectively positioned at two sides of the inner concave ring B forming blade, the concave ring B bottom chamfer edge is connected with the concave ring B cutting edge, and one side of the inner concave ring B forming blade, which is close to the second cutter bar, forms the concave ring B top chamfer edge;
each outer concave ring C shaping blade includes concave ring C cutting edge and concave ring C chamfer sword, concave ring C cutting edge protrusion in the lateral wall of first cutter arbor, and the tip is cut flat and is formed concave ring C chamfer sword.
Further, in order to increase the connection strength between the first cutter rod and the cutter handle, the thickness of the bottom of the U-shaped arm is increased, if the connection part is directly a right angle, stress concentration is caused, and fracture is easily caused in the machining process, so that the excircle of the cutting edge at the side, connected with the cutter handle, of the U-shaped arm is reversely tapered to form a tapered surface, the taper angle α is 100-110 degrees, and the size of the taper angle α can be set according to the actual machining rotating speed, the depth of the concave ring and the requirement of materials, and is preferably 105 degrees.
Preferably, the inner concave ring A forming blade, the inner concave ring B forming blade and the outer concave ring C forming blade are all made of PCD materials.
Preferably, in order to improve the processing efficiency and ensure the processing quality, the cutter adopts a multi-blade structure, and the concave ring A forming blade and the concave ring B forming blade are four and are in cross-shaped symmetrical distribution. The forming blades of the inner concave ring A and the forming blades of the inner concave ring B are in one-to-one correspondence, and each group is located on the same bus of the second cutter bar.
Specifically, the rotation diameter ∅ 1 and the height H of the inner concave ring A forming blade and the inner concave ring B forming blade are the same, the rotation diameter ∅ 1 is 38mm, the tolerance is +/-0.02 mm, the height H is 2.5mm, and the tolerance is +/-0.05 mm; the diameter of revolution ∅ 2 of outer concave ring C shaping blade is 68mm, and the tolerance is 0.02 mm.
The inner concave ring A forming blade is located at the end of the second cutter bar, the inner concave ring B forming blade is located at the rear end of the inner concave ring A forming blade, and the distance between the inner concave ring A forming blade and the inner concave ring B forming blade is 6 mm.
Specifically, the length of the cutting edge of the concave ring A is 3mm, and the tolerance is 0.03 mm; the chamfer edge at the bottom of the concave ring A is an arc chamfer, and the radius R is 0.2 mm; the chamfer edge at the top of the concave ring A is a straight chamfer, and the chamfer size C1 is 1.0 mm.
Specifically, the length of the cutting edge of the concave ring B is 3mm, and the tolerance is 0.03 mm; the chamfer edge at the bottom of the concave ring B is a straight chamfer, and the chamfer size C2 is 0.2 mm; the chamfer edge at the top of the concave ring B is a straight chamfer, and the chamfer size C3 is 1.0 mm.
Specifically, the length of the cutting edge of the concave ring C is 3mm, and the tolerance is 0.03 mm; the chamfer edge of the concave ring C is a straight chamfer, and the chamfer size C4 is 1.0 mm.
Specifically, the outer diameter ∅ 3 of the outer concave ring C forming blade is 100 mm.
The utility model has the advantages that: the utility model provides a PCD forming cutter of an automobile steering shell, which is characterized in that a plurality of blades are arranged on one cutter, so that an inner concave ring and an outer concave ring can be formed at one time, and the processing efficiency is improved; the cutter handle adopts an integrated structure, so that the rigidity of the cutter is greatly improved, the service life of the cutter is prolonged, and the production cost is reduced; therefore, the problem that a customer is difficult to machine when machining the automobile steering shell is solved, the surface precision and quality of a product machined by the customer are improved, and the advantages of the PCD forming cutter are highlighted.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of a PCD forming cutter of the present invention.
Fig. 3 is an enlarged schematic view of a in fig. 2.
Fig. 4 is an enlarged schematic view of a in fig. 2.
Fig. 5a-5c are schematic flow diagrams of the process.
In the figure: 1. the cutter handle, 2, first cutter arbor, 3, second cutter arbor, 4, indent ring A shaping blade, 41, indent ring A cutting edge, 42, indent ring A bottom chamfer edge, 43, indent ring A top chamfer edge, 5, indent ring B shaping blade, 51, indent ring B cutting edge, 52, indent ring B bottom chamfer edge, 53, indent ring B top chamfer edge, 6, outer indent ring C shaping blade, 61, indent ring C cutting edge, 62, indent ring C chamfer edge.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
As shown in fig. 2, the PCD forming cutter for the automobile steering shell of the present invention comprises a handle 1, and a first cutter bar 2 and a second cutter bar 3 connected to the handle 1, wherein one end of the first cutter bar 2 is directly connected to the handle 1, and the other end is provided with a U-shaped arm structure, and the inner side of the U-shaped arm is symmetrically provided with an outer concave ring C forming blade 6; second cutter arbor 3 is the cylindricality structure, and one end extend to in the U type arm with first cutter arbor 2 fixed connection, be equipped with the indent ring A shaping blade 4 and the indent ring B shaping blade 5 of evagination on the outer wall of the 2 other ends of first cutter arbor, indent ring B shaping blade 5 is on the second cutter arbor 3 between indent ring A shaping blade 4 and outer indent ring C shaping blade 6.
In the embodiment, four inner concave ring A forming blades 4 and four inner concave ring B forming blades 5 are symmetrically distributed in a cross shape; the forming blades 4 of the inner concave ring A and the forming blades 5 of the inner concave ring B are in one-to-one correspondence, and each group is positioned on the same bus of the second cutter bar 3. Because the first cutter rod 2 is in a U-shaped arm structure, two outer concave ring C forming blades 6 are symmetrically distributed.
As shown in fig. 3, each of the inner concave ring a forming blades 4 includes a concave ring a cutting edge 41, a concave ring a bottom chamfer edge 42 and a concave ring a top chamfer edge 43, the concave ring a cutting edge 41 protrudes out of the side wall of the second cutter holder 3, two concave ring a bottom chamfer edges 42 and two concave ring a top chamfer edges 43 are respectively located at two sides of the inner concave ring a forming blade 4, the concave ring a bottom chamfer edge 42 is connected with the concave ring a cutting edge 41, the concave ring a top chamfer edge 43 is formed at one side of the inner concave ring a forming blade 4 close to the second cutter holder 3, and the concave ring a bottom chamfer edge 42 and the concave ring a top chamfer edge 43 at the same side are connected through the concave ring a cutting edge.
Every indent ring B shaping blade 5 includes indent ring B cutting edge 51, indent ring B bottom chamfer sword 52 and indent ring B top chamfer sword 53, indent ring B cutting edge 51 protrusion in the lateral wall of second cutter arbor 3, and indent ring B bottom chamfer sword 52 and indent ring B top chamfer sword 53 are two, are located the both sides of indent ring B shaping blade 5 respectively, just indent ring B bottom chamfer sword 52 is connected with indent ring B cutting edge 51, one side that indent ring B shaping blade 5 is close to second cutter arbor 3 forms indent ring B top chamfer sword 53.
In the embodiment, the rotation diameter ∅ 1 and the height H of the inner concave ring A forming blade 4 and the inner concave ring B forming blade 5 are the same, the rotation diameter ∅ 1 is 38mm, the tolerance is +/-0.02 mm, the height H is 2.5mm, and the tolerance is +/-0.05 mm; the inner concave ring A forming blade 4 is located at the end of the second cutter bar 3, the inner concave ring B forming blade 5 is located at the rear end of the inner concave ring A forming blade 4, and the distance between the inner concave ring A forming blade 4 and the inner concave ring B forming blade 5 is 6 mm. The length of the cutting edge 41 of the concave ring A is 3mm, and the tolerance is 0.03 mm; the chamfer edge 42 at the bottom of the concave ring A is an arc chamfer, and the radius R is 0.2 mm; the chamfer edge 43 at the top of the concave ring A is a straight chamfer, and the chamfer size C1 is 1.0 mm. The length of the cutting edge 51 of the concave ring B is 3mm, and the tolerance is 0.03 mm; the chamfer edge 52 at the bottom of the concave ring B is a straight chamfer, and the chamfer size C2 is 0.2 mm; the chamfer edge 53 at the top of the concave ring B is a straight chamfer, and the chamfer size C3 is 1.0 mm.
As shown in fig. 4, each of the outer female C-ring shaped inserts 6 includes a female C-ring cutting edge 61 and a female C-ring chamfer edge 62, the female C-ring cutting edge 61 protrudes from the side wall of the first shank 2, and is flattened at the end to form the female C-ring chamfer edge 62. The diameter ∅ 2 of revolution of the outer female ring C forming blade 6 in this embodiment is 68mm with a tolerance of ± 0.02 mm. The length of the cutting edge 61 of the concave ring C is 3mm, and the tolerance is 0.03 mm; the chamfer edge 62 of the concave ring C is a straight chamfer, and the chamfer size C4 is 1.0 mm. The outer diameter ∅ 3 of the outer female ring C forming blade 6 is 100 mm.
Further, in order to increase the connection strength between the first cutter bar 2 and the cutter handle 1, the thickness of the bottom of the U-shaped arm is increased, if the connection part is directly a right angle, stress concentration is caused, and fracture is easily caused in the machining process, so that the excircle of the cutting edge on the side where the U-shaped arm is connected with the cutter handle 1 is reversely tapered to form a tapered surface, and the taper angle α is 100-110 degrees, the size of the taper angle α can be set according to the actual machining rotating speed, the depth of the concave ring and the requirement of materials, and is preferably 105 degrees.
Preferably, the inner concave ring A forming blade 4, the inner concave ring B forming blade 5 and the outer concave ring C forming blade 6 are all made of PCD materials.
The processing process is as shown in fig. 5a-5c, the semi-finished product to be processed and the cutter are fixedly mounted, the inner concave ring A forming blade 4 and the inner concave ring B forming blade 5 of the cutter are close to the wall surface of the inner hole of the semi-finished product to be processed, then the semi-finished product to be processed and the cutter generate radial relative movement according to a certain feeding speed, and the processing of the inner concave ring in the hole is started, as shown in fig. 5B; because the height of the inner concave ring is different from that of the outer concave ring, the processing of the inner concave ring is only carried out at the beginning; when the relative movement reaches a certain height, the forming blade 6 of the outer concave ring C starts to process until the single hole processing of the steering shell is finished, as shown in figure 1.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides an automobile steering casing PCD becomes cutting tool which characterized in that: the cutter comprises a cutter handle (1), and a first cutter bar (2) and a second cutter bar (3) which are connected to the cutter handle (1), wherein one end of the first cutter bar (2) is directly connected with the cutter handle (1) into a whole, the other end of the first cutter bar is provided with a U-shaped arm structure, and the inner side of the U-shaped arm is symmetrically provided with an outer concave ring C-shaped forming blade (6); the second cutter bar (3) is of a cylindrical structure, one end of the second cutter bar extends into the U-shaped arm and is fixedly connected with the first cutter bar (2), an outer wall of the other end of the first cutter bar (2) is provided with an outer convex concave ring A forming blade (4) and an outer concave ring B forming blade (5), and the inner concave ring B forming blade (5) is arranged on the second cutter bar (3) between the inner concave ring A forming blade (4) and the outer concave ring C forming blade (6); wherein the content of the first and second substances,
each inner concave ring A forming blade (4) comprises a concave ring A cutting edge (41), a concave ring A bottom chamfer edge (42) and a concave ring A top chamfer edge (43), the concave ring A cutting edge (41) protrudes out of the side wall of the second cutter bar (3), the number of the concave ring A bottom chamfer edges (42) and the number of the concave ring A top chamfer edges (43) are two, the concave ring A bottom chamfer edges (42) and the concave ring A top chamfer edges (43) are respectively located on two sides of the inner concave ring A forming blade (4), the concave ring A bottom chamfer edges (42) are connected with the concave ring A cutting edge (41), and one side, close to the second cutter bar (3), of the inner concave ring A forming blade (4) forms the concave ring A top chamfer edge (43);
each inner concave ring B forming blade (5) comprises a concave ring B cutting edge (51), a concave ring B bottom chamfer edge (52) and a concave ring B top chamfer edge (53), the concave ring B cutting edge (51) protrudes out of the side wall of the second cutter bar (3), the number of the concave ring B bottom chamfer edges (52) and the number of the concave ring B top chamfer edges (53) are two, the concave ring B bottom chamfer edges (52) and the concave ring B top chamfer edges (53) are respectively positioned on two sides of the inner concave ring B forming blade (5), the concave ring B bottom chamfer edges (52) are connected with the concave ring B cutting edge (51), and one side, close to the second cutter bar (3), of the inner concave ring B forming blade (5) forms the concave ring B top chamfer edge (53);
each outer concave ring C forming blade (6) comprises a concave ring C cutting edge (61) and a concave ring C chamfering edge (62), wherein the concave ring C cutting edge (61) protrudes out of the side wall of the first cutter rod (2), and the end part of the concave ring C cutting edge is flattened to form the concave ring C chamfering edge (62).
2. The PCD-shaped cutter for the steering housing of the automobile according to claim 1, wherein the side of the U-shaped arm connected with the cutter handle (1) is a conical surface, and the cone angle α is 100-110 degrees.
3. The automotive steering housing PCD forming cutter of claim 1, wherein: the inner concave ring A forming blade (4), the inner concave ring B forming blade (5) and the outer concave ring C forming blade (6) are all made of PCD materials.
4. The automotive steering housing PCD forming cutter of claim 1, wherein: the inner concave ring A forming blades (4) and the inner concave ring B forming blades (5) are four and are symmetrically distributed in a cross shape.
5. The automotive steering housing PCD forming cutter of claim 1, wherein: the rotation diameter ∅ 1 and the height H of the inner concave ring A forming blade (4) and the inner concave ring B forming blade (5) are the same, the rotation diameter ∅ 1 is 38mm, the tolerance is +/-0.02 mm, the height H is 2.5mm, and the tolerance is +/-0.05 mm; the rotary diameter ∅ 2 of the outer concave ring C forming blade (6) is 68mm, and the tolerance is +/-0.02 mm.
6. The automotive steering housing PCD forming cutter of claim 1, wherein: the distance between the forming blade (4) of the inner concave ring A and the forming blade (5) of the inner concave ring B is 6 mm.
7. The automotive steering housing PCD forming cutter of claim 1, wherein: the length of the cutting edge (41) of the concave ring A is 3mm, and the tolerance is 0.03 mm; the chamfer edge (42) at the bottom of the concave ring A is an arc chamfer, and the radius R is 0.2 mm; the chamfer edge (43) at the top of the concave ring A is a straight chamfer, and the chamfer size C1 is 1.0 mm.
8. The automotive steering housing PCD forming cutter of claim 1, wherein: the length of the cutting edge (51) of the concave ring B is 3mm, and the tolerance is 0.03 mm; the chamfer edge (52) at the bottom of the concave ring B is a straight chamfer, and the chamfer size C2 is 0.2 mm; the chamfer edge (53) at the top of the concave ring B is a straight chamfer, and the chamfer size C3 is 1.0 mm.
9. The automotive steering housing PCD forming cutter of claim 1, wherein: the length of the cutting edge (61) of the concave ring C is 3mm, and the tolerance is 0.03 mm; the chamfer edge (62) of the concave ring C is a straight chamfer, and the chamfer size C4 is 1.0 mm.
10. The automotive steering housing PCD forming cutter of claim 1, wherein: the outer diameter ∅ 3 of the outer concave ring C-shaped blade (6) is 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922324062.9U CN211161970U (en) | 2019-12-21 | 2019-12-21 | PCD (Poly Crystal Diamond) forming cutter for automobile steering shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922324062.9U CN211161970U (en) | 2019-12-21 | 2019-12-21 | PCD (Poly Crystal Diamond) forming cutter for automobile steering shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211161970U true CN211161970U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922324062.9U Active CN211161970U (en) | 2019-12-21 | 2019-12-21 | PCD (Poly Crystal Diamond) forming cutter for automobile steering shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN211161970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000875A (en) * | 2019-12-21 | 2021-06-22 | 常州冶戈工具有限公司 | PCD (Poly Crystal Diamond) forming cutter for automobile steering shell |
-
2019
- 2019-12-21 CN CN201922324062.9U patent/CN211161970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000875A (en) * | 2019-12-21 | 2021-06-22 | 常州冶戈工具有限公司 | PCD (Poly Crystal Diamond) forming cutter for automobile steering shell |
| CN113000875B (en) * | 2019-12-21 | 2024-05-10 | 常州冶戈工具有限公司 | PCD forming cutter for steering shell of automobile |
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