CN221019898U - Special fixture for milling cam shape - Google Patents
Special fixture for milling cam shape Download PDFInfo
- Publication number
- CN221019898U CN221019898U CN202322930509.3U CN202322930509U CN221019898U CN 221019898 U CN221019898 U CN 221019898U CN 202322930509 U CN202322930509 U CN 202322930509U CN 221019898 U CN221019898 U CN 221019898U
- Authority
- CN
- China
- Prior art keywords
- cam
- bottom plate
- nut
- threaded rod
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003801 milling Methods 0.000 title claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 9
- 238000003754 machining Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model discloses a special clamp for milling a cam shape, and belongs to the technical field of machining. Including bottom plate, packing ring, nut, dabber and locating pin, U-shaped recess has been seted up to the bottom plate both sides, the shaft hole has been seted up at the center, dabber and the shaft hole interference fit location of bottom plate, the dabber of bottom plate top is hexagonal axle structure, hexagonal axle is unanimous with the shaft hole shape of cover cam in top for the cam is fixed a position just, hexagonal axle top is the threaded rod, the packing ring cover is on the threaded rod, the screw thread screw in has the nut on the threaded rod of packing ring top, a pair of locating hole has been seted up on the bottom plate, the locating pin that passes the cam earhole has been inserted in the locating hole for the cam is fixed a position completely. The washer is provided with a notch, the width of the notch is larger than the diameter of the threaded rod at the top of the mandrel, and the diameter of the nut is smaller than the diameter of the hexagonal shaft of the mandrel. The clamp can directly sleeve the cam into the mandrel without completely disassembling the nut, and the nut is screwed by inserting the gasket from the side face, so that the fastening operation efficiency is improved.
Description
Technical Field
The utility model relates to a special clamp for milling a cam shape, and belongs to the technical field of machining.
Background
In the field of machining, the appearance of certain parts is very complicated, as shown in fig. 2, when the appearance of the parts is machined, clamping alignment is difficult to finish even impossible due to the special appearance of the parts, a simple and universal clamping device is used, the clamping process is time-consuming and labor-consuming, the clamping machining precision is often not guaranteed, the machining efficiency is low, and the product consistency is low. At this time, a special jig is often required for processing such special parts.
Disclosure of utility model
In order to solve the defects in the prior art, the utility model provides the special clamp for milling the cam profile, which is convenient to clamp during processing and has high processing efficiency.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a mill cam appearance special fixture, includes bottom plate, packing ring, nut, dabber and locating pin, and U-shaped recess has been seted up to the bottom plate both sides, and the shaft hole has been seted up at the center, and dabber and the shaft hole interference fit location of bottom plate, dabber in bottom plate top are hexagonal axle structure, and hexagonal axle top is the threaded rod, and the packing ring cover is on the threaded rod, and the screw thread screw in has the nut on the threaded rod of packing ring top has seted up a pair of locating hole on the bottom plate, has inserted the locating pin that passes cam earhole in the locating hole.
Further, the hexagonal shaft of the mandrel is smaller than the cam, and the hexagonal shaft is consistent with the cam shaft hole in size and shape.
Further, the outer diameter of the gasket is larger than the diameter of the hexagonal shaft, the gasket is provided with a notch, the width of the notch is larger than the diameter of the threaded rod at the top of the mandrel, and the diameter of the nut is smaller than the diameter of the hexagonal shaft of the mandrel.
The beneficial effects of the utility model are as follows: the problem of difficult clamping and machining efficiency are low during cam appearance processing is solved, the clamp plate of facilitating the use and bolt-up are on milling machine table, the dabber be equipped with work piece complex hexagonal axle, the quick fixed when making things convenient for the initial stage of work piece to place, the rethread locating pin cooperation realizes the work piece completely to fix a position fast, convenient clamping during processing, machining efficiency is high.
Drawings
The utility model is further described below with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the cam member.
FIG. 3 is a schematic diagram of the structure of the present utility model in use.
Fig. 4 is a top view of the mandrel of the present utility model.
Reference numerals in the drawings:
1. The device comprises a bottom plate, 2, washers, 3, nuts, 4, a mandrel, 5, a locating pin, 6 and a cam.
Detailed Description
As shown in figures 1-4, the special clamp for milling the shape of the cam comprises a bottom plate 1, a gasket 2, a nut 3, a mandrel 4 and a positioning pin 5, wherein the bottom plate 1 is made of a No. 50 steel material, U-shaped grooves are formed in two sides of the bottom plate 1, and the clamp can be clamped on a milling machine workbench through bolts and pressing plates which are convenient to use.
The center of the bottom plate 1 is provided with a shaft hole, the mandrel 4 is in interference fit with the shaft hole of the bottom plate 1 for positioning, and a rectangular sinking groove is formed around the shaft hole of the bottom surface of the bottom plate 1 through welding and fixing, so that the purpose that the welding bead of the bottom plate and the mandrel protrudes out of the bottom plane and the flatness of the bottom plane is prevented from being influenced is achieved.
The mandrel 4 adopts 40Cr material, and the mandrel 4 of bottom plate 1 top is hexagonal axle construction, and this hexagonal axle construction and the shaft hole cooperation of cam 6, and the hexagonal axle height of mandrel 4 is less than the cam 6 height, and its hexagonal axle size shape is unanimous with the cam 6 shaft hole, and its hexagonal axle design has guaranteed positioning accuracy, also convenient quick installation and definite direction. The top end of the hexagonal shaft is a threaded rod, and a tool retracting groove is processed at the joint of each shaft rod.
The gasket 2 is sleeved on the threaded rod, the gasket 2 is made of Q235 material, a nut 3 is screwed into the threaded rod above the gasket 2, and the nut is a standard component with the code of: GB/T41-2016; the washer 2 is provided with a gap, the width of the gap is larger than the diameter of a threaded rod at the top of the mandrel 4, and the outer diameter of the washer 2 is larger than the diameter of a hexagonal shaft, so that the washer can be tightly pressed against the fixed cam 6 through screwing the nut 3; the diameter of the nut 3 is smaller than that of the hexagonal shaft of the mandrel 4, so that the clamp can directly sleeve the cam 6 on the mandrel 4 without completely disassembling the nut 3, and the nut 3 is screwed by inserting the gasket 2 from the side, so that the fastening operation efficiency is improved.
The bottom plate 1 is provided with a pair of positioning holes, and positioning pins 5 penetrating through lug holes of the cam 6 are inserted into the positioning holes. The purpose is to be matched with the locating pin for the complete locating of the workpiece. The locating pin adopts 50 steel materials, is two sections ladder circular shaft, and the small one end of diameter passes the earhole of cam 6, and the one side that the diameter is big is the tang.
The using method of the clamp comprises the following steps:
1. During processing, the clamp is fixed on a milling machine workbench through the pressing plate and the bolts, so that the clamp is ensured to be parallel to the x axis of the milling machine;
2. the shaft hole of the cam 6 passes through the mandrel 4 and is positioned by using the positioning pin 5;
3. the upper end of the cam 6 is attached through the gasket 2 and is fastened by the nut 3;
4. Processing the shape of the cam;
5. and after the processing is finished, loosening the clamping nut 5, and unloading the workpiece.
The fixture fully utilizes the characteristic points of the workpiece to fix, is simple and easy to operate, is provided with two positioning holes, is convenient for the positive and negative use of the workpiece, and fully ensures the positioning accuracy according to the characteristic points of the part in the use process of the fixture, and improves the production efficiency and the product consistency.
Claims (3)
1. A milling cam appearance special fixture which characterized in that: including bottom plate (1), packing ring (2), nut (3), dabber (4) and locating pin (5), U-shaped recess has been seted up to bottom plate (1) both sides, the shaft hole has been seted up at the center, dabber (4) are located with the shaft hole interference fit of bottom plate (1), dabber (4) of bottom plate (1) top are hexagonal axle structure, hexagonal axle top is the threaded rod, packing ring (2) cover is on the threaded rod, the screw thread screw in has nut (3) on the threaded rod of packing ring (2) top, a pair of locating hole has been seted up on bottom plate (1), locating pin (5) that pass cam (6) earhole have been inserted in the locating hole.
2. The special clamp for milling cam profiles according to claim 1, wherein: the height of the hexagonal shaft of the mandrel (4) is smaller than that of the cam (6), and the size and shape of the hexagonal shaft are consistent with those of the shaft hole of the cam (6).
3. The special clamp for milling cam profiles according to claim 1, wherein: the outer diameter of the gasket (2) is larger than the diameter of the hexagonal shaft, the gasket (2) is provided with a notch, the width of the notch is larger than the diameter of the threaded rod at the top of the mandrel (4), and the diameter of the nut (3) is smaller than the diameter of the hexagonal shaft of the mandrel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322930509.3U CN221019898U (en) | 2023-10-31 | 2023-10-31 | Special fixture for milling cam shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322930509.3U CN221019898U (en) | 2023-10-31 | 2023-10-31 | Special fixture for milling cam shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221019898U true CN221019898U (en) | 2024-05-28 |
Family
ID=91171690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322930509.3U Active CN221019898U (en) | 2023-10-31 | 2023-10-31 | Special fixture for milling cam shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221019898U (en) |
-
2023
- 2023-10-31 CN CN202322930509.3U patent/CN221019898U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |