CN220761022U - Tool for turning white alloy surface of large marine diesel engine thrust block - Google Patents
Tool for turning white alloy surface of large marine diesel engine thrust block Download PDFInfo
- Publication number
- CN220761022U CN220761022U CN202322137856.0U CN202322137856U CN220761022U CN 220761022 U CN220761022 U CN 220761022U CN 202322137856 U CN202322137856 U CN 202322137856U CN 220761022 U CN220761022 U CN 220761022U
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- bolts
- thrust block
- pressing plate
- white alloy
- tool
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- 239000000956 alloy Substances 0.000 title claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000003801 milling Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The tool for turning the white alloy surface of the large marine diesel engine thrust block is provided with radial T-shaped grooves which are uniformly distributed in the circumferential direction of a disc chuck fixed on a lathe, connecting bolts penetrating out are arranged in the middle of each T-shaped groove of every two T-shaped grooves, the upper section of the tool also penetrates through a through hole in the middle of a trapezoidal pressing plate to be connected with a fixed nut, two ends of the trapezoidal pressing plate are propped against the side surface of the thrust block, threaded holes below two ends of the trapezoidal pressing plate are screwed with bolts and are provided with adjusting nuts, and an adjustable round pad is arranged at the lower part of the tool; the outside and the inside of the two radial T-shaped grooves are respectively provided with a penetrating positioning bolt, a positioning block and a fastening nut. The special fixture for grouped processing of the thrust blocks is developed, the white alloy surfaces of the six thrust blocks are turned once, the surface quality of the white alloy is obviously improved, the requirements are met, and the single test is qualified.
Description
Technical Field
The utility model relates to a tool for turning a white alloy surface of a large marine diesel engine thrust block.
Background
The marine diesel engine thrust block is used as a thrust bearing accessory, and the white alloy surface of the marine diesel engine thrust block has the requirements of bearing impact load and high wear resistance, and has the roughness of Ra0.8. Because the thrust block is lack of necessary clamping points structurally, the thrust block white alloy surface is generally processed in a milling mode on a milling machine, the hardness of the white alloy surface is low, the milled white alloy surface is easy to generate cutter lines and cutter receiving platforms, and the requirements of the test are not met.
Disclosure of Invention
Aiming at the processing problem of the white alloy surface of the thrust block, the utility model provides a tool solution which is safe and reliable, has low cost and convenient operation and can meet the drawing requirements.
The technical scheme of the utility model is as follows:
the utility model relates to a tool for turning a white alloy surface of a large marine diesel engine thrust block, which is shown in the accompanying drawing, and comprises a disc chuck (2) fixed on a lathe chuck, wherein the middle part of the disc chuck is provided with an indexing positioning center hole, radial T-shaped grooves are uniformly distributed on the disc chuck along the circumference outside the center hole, connecting bolts (9) penetrating out are arranged at the middle positions of the T-shaped grooves which are separated by two T-shaped grooves, the upper section of each bolt also penetrates through a through hole in the middle part of a trapezoidal pressing plate (7) to be connected with a fixed nut, the two ends of the trapezoidal pressing plate are propped against the side surface of the thrust block (1), threaded holes are respectively arranged below the two ends of the trapezoidal pressing plate, bolts (4) are screwed in the threaded holes, the upper sections of the bolts are also provided with adjusting nuts (6), and adjustable round pads (5) are arranged below hexagonal heads below the bolts; the outside and the inside of the two radial T-shaped grooves are respectively provided with a penetrating positioning bolt (3), the positioning bolts are sleeved with positioning blocks, and the positioning bolts on the positioning blocks are matched with fastening nuts.
The large marine diesel engine thrust block white alloy surface turning device is characterized in that bolts (4) are screwed into M16 threaded holes on the upper side and the lower side of each thrust block, the hexagon heads of the bolts are parallel to the placing surface, adjustable round pads (5) are placed on the lower portions of the hexagon heads, the heights of the round pads are rotatably adjusted to be supported below the hexagon heads of the bolts, and the upper surfaces of the hexagon heads are tightly pressed by trapezoidal pressing plates (7) and fixedly screwed by screw rods (8) and bottom caps (9).
S1, replacing milling by using vertical lathe grouping processing, and creating a thrust block turning clamping mode;
the utility model discloses a method for machining a white alloy surface, which comprises the following steps of machining by 6 thrust blocks in a group vertical lathe, creating thrust block clamping positioning points through a clamp, and releasing a white alloy surface machining space.
Compared with the prior art, the utility model has the beneficial effects that: the tool solves the problems that cutter lines and cutter receiving platforms are easy to appear in the processing of the white alloy surface of the thrust block, improves the surface quality, and the turning quality of the white alloy surface of the thrust block completely meets the installation and use requirements after verification.
Drawings
The above and other features, properties and advantages of the present utility model will become more apparent from the following description of the embodiments in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic top view of a tooling clamping thrust block for turning a white alloy surface of a large marine diesel engine thrust block.
Fig. 2 is a schematic front view of a fixture clamping thrust block for turning a white alloy surface of a large marine diesel engine thrust block.
Fig. 3 is a schematic perspective view of a fixture clamping thrust block for turning a white alloy surface of a large marine diesel engine thrust block.
Detailed Description
In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.
The tool for turning the white alloy surface of the large marine diesel engine thrust block is shown in the attached drawing, and comprises a disc chuck (2) fixed on a lathe chuck, wherein the middle part of the disc chuck is provided with an indexing positioning center hole, radial T-shaped grooves are uniformly distributed on the disc chuck along the circumference outside the center hole, connecting bolts (9) penetrating out are arranged at the middle positions of the T-shaped grooves which are separated by two T-shaped grooves, the upper section of each bolt also penetrates through a through hole in the middle part of a trapezoidal pressing plate (7) to be connected with a fixed nut, the two ends of the trapezoidal pressing plate are propped against the side surface of the thrust block (1), threaded holes are respectively arranged below the two ends of the trapezoidal pressing plate, bolts (4) are screwed in the threaded holes, the upper sections of the bolts are also provided with adjusting nuts (6), and adjustable round pads (5) are arranged below hexagon heads below the bolts; the outside and the inside of the two radial T-shaped grooves are respectively provided with a penetrating positioning bolt (3), the positioning bolts are sleeved with positioning blocks, and the positioning bolts on the positioning blocks are matched with fastening nuts. Preferably, a bolt (4) is screwed into an M16 threaded hole on the upper side and the lower side of each thrust block, the hexagon head of the bolt is parallel to the placing surface, an adjustable round pad (5) is placed on the lower portion of the hexagon head, the height of the round pad is adjusted through rotation, the round pad is supported below a hexagon of the bolt, the upper portion of the hexagon head is tightly pressed by a trapezoid pressing plate (7), and the hexagon head is fixedly screwed by a screw rod (8) and a bottom cap.
S1, replacing milling by using vertical lathe grouping processing, and creating a thrust block turning clamping mode: fig. 1 is a schematic top view of a thrust block clamp: the thrust blocks (1) are uniformly distributed on the flower disc (2), and after the thrust blocks are aligned according to scribing lines, the inner arc surfaces and the outer arc surfaces of the thrust blocks are fixed by the positioning blocks (3); fig. 2 is a schematic front view of a thrust block clamping: screw bolts (4) are screwed into threaded holes on two sides M16 of each thrust block, note that the hexagon heads of the bolts are parallel to the placing surface, adjustable round pads (5) are placed at the lower parts of the hexagon heads, the height of the round pads is adjusted through a rotating assembly (6) to be supported below the hexagon heads of the bolts, the upper parts of the hexagon heads are tightly pressed by trapezoidal pressing plates (7), and the hexagon heads are fixedly screwed by screw rods (8) and bottom caps; thereby realizing the omnibearing positioning and clamping of the periphery of the thrust block shown in fig. 3.
Claims (2)
1. The tool for turning the white alloy surface of the large marine diesel engine thrust block is characterized by comprising a disc chuck (2) fixed on a lathe chuck, wherein an indexing positioning center hole is formed in the middle of the disc chuck, radial T-shaped grooves are uniformly distributed in the circumferential direction outside the center hole of the disc chuck, connecting bolts (9) penetrating out are arranged in the middle of each T-shaped groove which is separated by two T-shaped grooves, the upper section of each bolt is connected with a fixed nut through a through hole in the middle of a trapezoid pressing plate (7), two ends of the trapezoid pressing plate are propped against the side surface of the thrust block (1), threaded holes are respectively formed below two ends of the trapezoid pressing plate, bolts (4) are screwed into the threaded holes, adjusting nuts (6) are further arranged at the upper sections of the bolts, and adjustable round pads (5) are placed at the lower parts of hexagon heads below the bolts; the outside and the inside of the two radial T-shaped grooves are respectively provided with a penetrating positioning bolt (3), the positioning bolts are sleeved with positioning blocks, and the positioning bolts on the positioning blocks are matched with fastening nuts.
2. The tooling for turning a white alloy surface of a large marine diesel engine thrust block according to claim 1, wherein the tooling is characterized in that: screw bolts (4) are screwed into M16 threaded holes on the upper side and the lower side of each thrust block, the hexagon heads of the bolts are parallel to the placing surface, adjustable round pads (5) are placed on the lower portions of the hexagon heads, the height of the round pads is adjusted through rotation, the round pads are supported below the hexagon heads of the bolts, the upper surfaces of the hexagon heads are tightly pressed by trapezoid pressing plates (7), and screw rods (8) and bottom caps are used for fixing and screwing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322137856.0U CN220761022U (en) | 2023-08-10 | 2023-08-10 | Tool for turning white alloy surface of large marine diesel engine thrust block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322137856.0U CN220761022U (en) | 2023-08-10 | 2023-08-10 | Tool for turning white alloy surface of large marine diesel engine thrust block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220761022U true CN220761022U (en) | 2024-04-12 |
Family
ID=90619771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322137856.0U Active CN220761022U (en) | 2023-08-10 | 2023-08-10 | Tool for turning white alloy surface of large marine diesel engine thrust block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220761022U (en) |
-
2023
- 2023-08-10 CN CN202322137856.0U patent/CN220761022U/en active Active
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