CN212495445U - Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine - Google Patents

Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine Download PDF

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Publication number
CN212495445U
CN212495445U CN202020795230.2U CN202020795230U CN212495445U CN 212495445 U CN212495445 U CN 212495445U CN 202020795230 U CN202020795230 U CN 202020795230U CN 212495445 U CN212495445 U CN 212495445U
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China
Prior art keywords
cutter
cutting edge
water
cast iron
machining
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Application number
CN202020795230.2U
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Chinese (zh)
Inventor
杨寒冰
张俊雄
丁胜明
黄成�
王弘
周强
潘刘铭
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FAW Jiefang Automotive Co Ltd
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FAW Jiefang Automotive Co Ltd
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Priority to CN202020795230.2U priority Critical patent/CN212495445U/en
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Abstract

The utility model discloses a special anti-boring cutter of cast iron engine cylinder cap water-stop sheet processing, including cutter body and cutting edge, the cutting edge is fixed at the cutter body front end, and the cutting edge adopts the second order blade, and the cutting edge designs into the second order and is used for rough and finish machining, is equipped with the platform section on the cutter body, and the platform section is located the cutter body anterior segment, and is located the radial symmetry side of cutting edge. Through the design of the platform section, the radial maximum length of the front section of the cutter body is smaller than the aperture above the water-stop plate, and when the cutter is fed, the cutter is fed at a deviated hole position on the main shaft, enters the aperture of the water-stop plate and then returns to the center position of the hole, so that the cutting machining can be carried out. The utility model provides a cutter unusual tipping problem promotes water-stop sheet processingquality.

Description

Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine
Technical Field
The utility model relates to a special anti-boring cutter of cast iron engine cylinder head water-stop sheet processing for processing cast iron engine cylinder head nozzle hole water-stop sheet belongs to cast iron engine cylinder head machine tooling technical field.
Background
In the engine industry, a machining method for performing circular interpolation milling on a water stop plate part of a cast iron cylinder head generally adopts a side-cutting milling cutter, and circular interpolation milling machining is performed by using a six-cutting milling cutter as shown in fig. 1. And a processing path mode of arc cutting-in, processing part milling and arc cutting-out is adopted.
The cast iron cylinder cover water-stop plate adopts a side edge milling cutter to carry out circular interpolation milling, and has the following defects: as shown in fig. 2, in the machining method of performing the arc interpolation milling by using the side edge milling cutter, the position of the water stop plate in the water channel is located at the center of the nozzle hole, and the upper aperture Φ 26 of the feed position is smaller than the aperture of the water stop plate. The diameter of the cutter bar above the processing part is smaller than that of the water-stop plate, so the diameter of the cutter bar is small, the depth is deeper, the cutter bar is long, the area of a cutting edge is large, vibration is easy to generate, abnormal edge breakage is easy to occur to the cutter, the service life of the cutter is short, the processing quality is not reliable, and the automatic and high-quality production requirements cannot be met; the production beat is low, and the method is not suitable for batch production.
The prior art discloses an adjustable inner hole reverse boring cutter, wherein a square hole is formed at the front end of a boring cutter body, a floating cutter block is arranged in the square hole, and an adjusting pad is arranged on the bottom surface of the floating cutter block to enable the floating cutter block to be in sliding fit with the square hole; the adjusting pad is fastened through a locking screw, a 60-degree V-shaped chute is arranged on the floating cutter block, a 60-degree V-shaped chute is arranged on the push rod, linkage is formed when the push rod moves axially, and an adjustable inner hole of the reverse boring cutter is realized through the floating cutter block. However, the structure is complex, although the inner hole can be machined in an adjustable mode through the floating blade, the connecting structure between the blade and the cutter body is complex, the cutter is easy to damage and damage, the service life is short, the cutter is not easy to produce and machine, and the control cost and the simplified production are not facilitated.
Disclosure of Invention
In order to solve the problem that prior art cylinder cap water-stop sheet processing beat is low, the cutter is longe-lived, the quality is insecure, the utility model provides a special anti-boring cutter of cast iron engine cylinder cap water-stop sheet processing.
The utility model aims at realizing through the following technical scheme:
the utility model provides a special anti-boring cutter of cast iron engine cylinder lid water-stop sheet processing, includes cutter body and cutting edge, and the cutting edge is fixed in the cutter body front end, and the cutting edge adopts the second order blade.
Further, the reverse boring cutter is a single-edge reverse boring cutter.
Furthermore, a platform section is arranged on the cutter body and is positioned at the front section of the cutter body and at the radial symmetrical side of the cutting edge.
The utility model has the advantages of it is following:
(1) the utility model reduces the cost of the cutter on a single cylinder cover, and saves the production cost;
(2) the production line efficiency is improved, the requirement of batch production is met, and the production beat is reduced by 25.9 seconds;
(3) the problem of abnormal tipping of the cutter is solved, and the processing quality of the water-stop plate is improved.
Drawings
In order to more clearly illustrate the technical solution in the embodiment of the present invention, the drawings to be used in the description of the embodiment of the present invention will be briefly introduced below, and obviously, the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic structural view of a six-blade milling cutter used for machining a water-stop plate of a cast iron cylinder head in the prior art;
FIG. 2 is a schematic view of the position of a water stop plate in a water channel when the water stop plate of the cast iron cylinder head is machined in the prior art;
FIG. 3 is a schematic structural view of a reverse boring cutter dedicated for machining a water-stop sheet of a cylinder head of a cast iron engine of the present invention;
FIG. 4 is a schematic view of the structure of the special reverse boring cutter belt size for processing the water-stop sheet of the cylinder head of the cast iron engine of the present invention;
fig. 5 is a flow chart of a processing process for processing the water-stop sheet of the cast iron cylinder cover by adopting the utility model.
In the figure: 1, a cutter body; 2-a blade; 11-platform section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As shown in fig. 3 and 4, the special reverse boring cutter for machining the water-stop plate of the cylinder cover of the cast iron engine comprises a cutter body 1 and a cutting edge 2, wherein the cutting edge is fixed at the front end of the cutter body and adopts a second-order cutting edge. The cutting edge is designed into a second order for rough and fine machining.
Further, the utility model discloses a single-blade reverse boring cutter.
Furthermore, the cutter body is provided with a platform section 11, and the platform section is positioned at the front section of the cutter body and positioned at the radial symmetrical side of the cutting edge. Through the design of the platform section, the radial maximum length of the front section of the cutter body is smaller than the aperture above the water-stop plate, and when the cutter is fed, the cutter is fed at a deviated hole position on the main shaft, enters the aperture of the water-stop plate and then returns to the center position of the hole, so that the cutting machining can be carried out.
Further, the utility model discloses a reverse boring cutter of quick change blade formula.
Examples
The utility model provides a special anti-boring cutter of cast iron engine cylinder lid water-stop sheet processing, is single-blade anti-boring cutter, includes cutter body and cutting edge, and the cutting edge is fixed in the cutter body front end, and the cutting edge adopts the second order cutting edge. The cutter body is provided with a platform section, and the platform section is positioned at the front section of the cutter body and positioned at the radial symmetrical side of the cutting edge.
The whole length of the reverse boring cutter is 170, the width of the platform section is 12, the length of the platform section is 100, the diameter of the cutter body is phi 20, and the distance between the plane of the platform section and the plane of the central axis at the bottom is 8. The cutting edge width of the first-step cutting edge is smaller than that of the second-step cutting edge, the bore diameter of the first-step cutting edge is phi 28, and the bore diameter of the second-step cutting edge is phi 30.
The utility model discloses a working process specifically as follows:
the utility model provides a cast iron engine cylinder lid water-stop sheet processing method, the cutter adopts the utility model provides a special anti-boring cutter, include following step:
step one, starting processing, calling a cutter to change the cutter, and starting to execute a main program;
step two, the cutter reaches the initial position, and a subprogram is called;
1. positioning a cutter on a main shaft and then moving the center of the eccentric hole;
2. feeding a tool to the inner hole of the water-stop plate to the initial processing position after the center of the eccentric hole;
3. the cutter returns to the center of the hole after entering the inner hole of the water-stop sheet;
4. starting reverse boring cutting machining, and returning the original path of the subprogram structure;
step three, returning to the initial position of the cutter to continue executing the main program;
and step four, processing the content of the cutter until the main program is finished.
In the machining principle, considering that the aperture above a machining part is smaller than that of a water-stop sheet, a cutter is used for positioning on a main shaft, then the cutter is moved back 2.8mm away from the center of a hole in the Y direction, then the cutter is moved back to the center of the hole to prepare for cutting machining, then reverse boring cutting machining is started, and after machining is finished, the original path is returned to the initial position of the cutter.
During production, after the reverse boring tool is installed in the tool magazine and is taken out of the magazine and on-line, an operator operates the machining center to install the tool in the equipment tool magazine, the machining center automatically calls a machining main program and a machining subprogram, the machining content of the reverse boring tool is executed according to the program, machining of the water stop plate is completed, and relevant detection is carried out according to set inspection requirements after machining is finished.
During operation, the processing method changes the cutter and the cutter processing mode on the original basis, and does not need to add an operator.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The special reverse boring cutter for machining the water-stop plate of the cylinder cover of the cast iron engine is characterized by comprising a cutter body and a cutting edge, wherein the cutting edge is fixed at the front end of the cutter body and adopts a second-order cutting edge.
2. The special reverse boring tool for machining the water stop plate of the cylinder cover of the cast iron engine as claimed in claim 1, wherein the reverse boring tool is a single-edge reverse boring tool.
3. The special reverse boring tool for machining the water stop plate of the cylinder cover of the cast iron engine as claimed in claim 1, wherein the tool body is provided with a platform section, and the platform section is located at the front section of the tool body and located at the radially symmetrical side of the cutting edge.
CN202020795230.2U 2020-05-14 2020-05-14 Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine Active CN212495445U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020795230.2U CN212495445U (en) 2020-05-14 2020-05-14 Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020795230.2U CN212495445U (en) 2020-05-14 2020-05-14 Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine

Publications (1)

Publication Number Publication Date
CN212495445U true CN212495445U (en) 2021-02-09

Family

ID=74379658

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020795230.2U Active CN212495445U (en) 2020-05-14 2020-05-14 Special reverse boring cutter for machining water-stop sheet of cylinder cover of cast iron engine

Country Status (1)

Country Link
CN (1) CN212495445U (en)

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