CN220347796U - Clamp for drilling and milling groove of eccentric shaft - Google Patents
Clamp for drilling and milling groove of eccentric shaft Download PDFInfo
- Publication number
- CN220347796U CN220347796U CN202321596385.3U CN202321596385U CN220347796U CN 220347796 U CN220347796 U CN 220347796U CN 202321596385 U CN202321596385 U CN 202321596385U CN 220347796 U CN220347796 U CN 220347796U
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- Prior art keywords
- shell
- chuck
- main
- main shaft
- fixed disk
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- 238000003801 milling Methods 0.000 title claims abstract description 21
- 238000005553 drilling Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a clamp for drilling and milling grooves of an eccentric shaft, which comprises a shell, a chuck, supporting rings and limiting rods, wherein the upper end and the lower end of the shell are both open, the top of the shell is fixedly provided with the supporting rings, the chuck is arranged in the shell, the fixed disk is placed on the supporting rings, a main shaft penetrates through the supporting rings and the chuck, the chuck clamps the main shaft, the upper end surface of the supporting rings is provided with a plurality of vertically arranged limiting rods, the limiting rods enclose the fixed disk, and the limiting rods are in contact with the side walls of the fixed disk. According to the utility model, the chuck is arranged in the shell, so that the eccentric shaft can be effectively clamped, the central axis position of the main shaft is determined, the position of the fixed disc is determined by the arrangement of the limiting rod, and the central axes of the main shaft and the fixed disc are not coincident, so that the whole eccentric shaft is fixed, the clamped posture is kept stable, and the position determination is convenient when drilling and milling grooves.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to the technical field of clamps.
Background
As shown in fig. 1, an existing eccentric shaft is composed of a fixed disc 41, a main shaft 42, a main hole 43 and a main groove 44, wherein the fixed disc 41 is a horizontally arranged disc, the bottom of the fixed disc 41 is fixed with a vertically arranged main shaft 42, the main shaft 42 is provided with a vertically arranged main hole 43, the main hole 43 extends from the top end of the fixed disc 41 to the bottom end of the main shaft 42, the central axis of the fixed disc 41, the central axis of the main shaft 42 and the central axis of the main hole 43 are located on the same vertical plane, the three central axes are not overlapped, and the upper end surface of the fixed disc 41 is provided with the main groove 44. Since the central axis of the fixed disc 41, the central axis of the main shaft 42 and the central axis of the main hole 43 are not coincident, a common chuck cannot accurately position the eccentric shaft when the main hole 43 and the main groove 44 on the eccentric shaft are processed. The applicant has developed a special fixture for such eccentric shafts or similar to such eccentric shafts.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a clamp for drilling and milling grooves of an eccentric shaft, which can fix the posture and the position of the clamped eccentric shaft, so that the eccentric shaft can be conveniently drilled and milled.
In order to achieve the above purpose, the utility model provides a clamp for drilling and milling grooves of an eccentric shaft, the eccentric shaft consists of a fixed disc, a main shaft, main holes and main grooves, the fixed disc is a disc which is horizontally arranged, the bottom of the fixed disc is fixedly provided with a main shaft which is vertically arranged, the main shaft is provided with the main holes which are vertically arranged, the main holes extend from the top end of the fixed disc to the bottom end of the main shaft, the central axes of the fixed disc, the central axes of the main shaft and the central axes of the main holes are positioned on the same vertical plane and are not overlapped every two by two, the upper end surface of the fixed disc is provided with the main groove which comprises a shell, chucks, supporting rings and limiting rods, the upper end and the lower end of the shell are respectively opened, the top of the shell is fixedly provided with the supporting rings, the chucks are internally arranged in the shell, the fixed disc is placed on the supporting rings, the main shaft penetrates through the supporting rings and the chucks to clamp the main shaft, the upper end surface of the supporting rings is provided with a plurality of limiting rods which are vertically arranged, the limiting rods enclose the fixed disc, and the limiting rods are contacted with the side walls of the fixed disc.
Preferably, the bottom of the shell is fixed on a machine table of the numerical control machine tool, a plurality of drainage grooves are formed in the machine table, and the inside of the shell is at least communicated with one drainage groove.
Preferably, the upper end face of the supporting ring comprises an auxiliary ring protruding upwards, the inner wall of the auxiliary ring is flush with the inner wall of the supporting ring, and the lower end face of the fixed disc is in contact with the upper end face of the auxiliary ring.
Preferably, a mounting ring is arranged on the inner wall of the shell, and the chuck is fixed with the mounting ring.
Preferably, the limit rod is staggered with the main groove.
The utility model has the beneficial effects that: according to the utility model, the chuck is arranged in the shell, so that the eccentric shaft can be effectively clamped, the central axis position of the main shaft is determined, the position of the fixed disc is determined by the arrangement of the limiting rod, and the central axes of the main shaft and the fixed disc are not coincident, so that the whole eccentric shaft is fixed, the clamped posture is kept stable, and the position determination is convenient when drilling and milling grooves.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of an eccentric shaft of a fixture for drilling and milling grooves of the eccentric shaft of the present utility model;
fig. 2 is a front view of the fixture for drilling and milling grooves of the eccentric shaft of the present utility model.
In the figure: 1-shell, 2-support ring, 3-board, 10-installation ring, 11-chuck, 20-auxiliary ring, 21-gag lever post, 30-drainage groove, 41-fixed disk, 42-main shaft, 43-main hole, 44-main groove.
Detailed Description
Referring to fig. 1 and 2, the fixture for drilling and milling grooves of the eccentric shaft comprises a fixed disc 41, a main shaft 42, a main hole 43 and a main groove 44, wherein the fixed disc 41 is a disc which is horizontally arranged, the bottom of the fixed disc 41 is fixedly provided with the main shaft 42 which is vertically arranged, the main shaft 42 is provided with the main hole 43 which is vertically arranged, the main hole 43 extends from the top end of the fixed disc 41 to the bottom end of the main shaft 42, the central axes of the fixed disc 41, the central axes of the main shaft 42 and the central axes of the main hole 43 are positioned on the same vertical plane and are not overlapped, the central axes of the three central axes are not overlapped, the upper end face of the fixed disc 41 is provided with the main groove 44, the fixture comprises a shell 1, a chuck 11, a supporting ring 2 and a limiting rod 21, the upper end and the lower end of the shell 1 are respectively opened, the bottom of the shell 1 is fixed on a machine table 3 of a numerical control machine tool, a plurality of drainage grooves 30 are arranged on the machine table 3, the inside the shell 1 is at least communicated with one drainage groove 30, and the drainage grooves 30 can guide cooling liquid and chips entering the fixture in the process.
The top of shell 1 is fixed with a supporting ring 2, fixes mutually through a plurality of bolt between supporting ring 2 and the shell 1, and the internally mounted of shell 1 has a chuck 11, and chuck 11 is pneumatic chuck, has offered the hole that is used for chuck 11 trachea to pass on the shell 11, is equipped with a collar 10 on the inner wall of shell 1, and chuck 11 is fixed mutually with collar 10, fixes mutually through a plurality of bolt between chuck 11 and the collar 10.
The fixed disk 41 is placed on the support ring 2, the upper end face of the support ring 2 comprises an auxiliary ring 20 protruding upwards, the inner wall of the auxiliary ring 20 is flush with the inner wall of the support ring 2, the lower end face of the fixed disk 41 is contacted with the upper end face of the auxiliary ring 20, in order to enable the fixed disk 41 to be in a horizontal state after being placed, the flatness of the surface contacted with the lower end face of the fixed disk 41 needs to be ensured, the upper end face of the auxiliary ring 20 is far smaller than the upper end face of the support ring 2, and the difficulty of processing the upper end face of the auxiliary ring 20 is smaller than the difficulty of processing the upper end face of the support ring 2 on the premise of the same processing precision, the fixed disk 41 can be better put stably, and the phenomenon of inclination of the fixed disk 41 after being placed is avoided.
The main shaft 42 passes through the support ring 2 and the chuck 11, the chuck 11 clamps the main shaft 42 and can determine the position of the central axis of the main shaft 42, the upper end surface of the support ring 2 is provided with a plurality of vertically arranged limiting rods 21, the limiting rods 21 surround the fixed disc 41, the limiting rods 21 are contacted with the side wall of the fixed disc 41, the limiting rods 21 can determine the position of the central axis of the fixed disc 41, and the central axes of the main shaft 42 and the fixed disc 41 are not overlapped, so that the whole eccentric shaft is fixed, the gesture after clamping is kept stable, the position determination is convenient when drilling and milling grooves, and the limiting rods 21 interfere the milling cutter in order to avoid the interference of the milling grooves, and the limiting rods 21 are staggered with the main groove 44.
The working process of the utility model comprises the following steps:
in the clamp for drilling and milling grooves of the eccentric shaft, the fixed disc 41 is placed in the area surrounded by the limiting rod 21 on the supporting ring 2 in the working process, the main shaft 42 needs to be ensured to penetrate through the supporting ring 2 and the chuck 11 in the placing process, and then the main shaft 42 is clamped by the chuck, so that the eccentric shaft is fixed, and the eccentric shaft cannot move in the drilling and milling grooves process. Since the chuck 11 clamps the main shaft 42 to determine the position of the central axis of the main shaft 42, the limiting rod 21 can determine the position of the central axis of the fixed disc 41, and the central axes of the main shaft 42 and the fixed disc 41 are not coincident, the whole eccentric shaft is fixed, the posture after clamping is kept stable, and the position determination is convenient when drilling and milling grooves. And then the numerical control machine tool drills and mills the grooves on the eccentric shaft.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (5)
1. The utility model provides an eccentric shaft drilling anchor clamps for milling flutes, the eccentric shaft comprises fixed disk (41), main shaft (42), main hole (43), main groove (44), fixed disk (41) are the disc of a level setting, the bottom of fixed disk (41) is fixed with main shaft (42) of a vertical setting, be equipped with main hole (43) of a vertical setting on main shaft (42), the top of main hole (43) from fixed disk (41) extends to the bottom of main shaft (42), the axis of fixed disk (41), the axis of main shaft (42), the axis of main hole (43) is located on the same vertical plane and between the two liang of three axis, be equipped with a main groove (44) on the up end of fixed disk (41), its characterized in that: including shell (1), chuck (11), holding ring (2), gag lever post (21), the upper and lower both ends of shell (1) all open, and the top of shell (1) is fixed with one holding ring (2), and the internally mounted of shell (1) has one chuck (11), fixed disk (41) are placed on holding ring (2), and main shaft (42) pass holding ring (2) and chuck (11), and main shaft (42) are cliied to chuck (11), the up end of holding ring (2) is equipped with gag lever post (21) of a plurality of vertical settings, and gag lever post (21) enclose fixed disk (41), and gag lever post (21) contact with the lateral wall of fixed disk (41).
2. The fixture for drilling and milling grooves of the eccentric shaft according to claim 1, wherein: the bottom of the shell (1) is fixed on a machine table (3) of the numerical control machine tool, a plurality of drainage grooves (30) are formed in the machine table (3), and the inside of the shell (1) is at least communicated with one drainage groove (30).
3. The fixture for drilling and milling grooves of the eccentric shaft according to claim 1, wherein: the upper end face of the supporting ring (2) comprises an upward protruding auxiliary ring (20), the inner wall of the auxiliary ring (20) is flush with the inner wall of the supporting ring (2), and the lower end face of the fixing disc (41) is in contact with the upper end face of the auxiliary ring (20).
4. The fixture for drilling and milling grooves of the eccentric shaft according to claim 1, wherein: the inner wall of the shell (1) is provided with a mounting ring (10), and the chuck (11) is fixed with the mounting ring (10).
5. The fixture for drilling and milling grooves of the eccentric shaft according to claim 1, wherein: the limiting rod (21) is staggered with the main groove (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321596385.3U CN220347796U (en) | 2023-06-20 | 2023-06-20 | Clamp for drilling and milling groove of eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321596385.3U CN220347796U (en) | 2023-06-20 | 2023-06-20 | Clamp for drilling and milling groove of eccentric shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220347796U true CN220347796U (en) | 2024-01-16 |
Family
ID=89501402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321596385.3U Active CN220347796U (en) | 2023-06-20 | 2023-06-20 | Clamp for drilling and milling groove of eccentric shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220347796U (en) |
-
2023
- 2023-06-20 CN CN202321596385.3U patent/CN220347796U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |