CN210499343U - Positioning fixture for differential shell in machining center - Google Patents
Positioning fixture for differential shell in machining center Download PDFInfo
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- CN210499343U CN210499343U CN201921605666.4U CN201921605666U CN210499343U CN 210499343 U CN210499343 U CN 210499343U CN 201921605666 U CN201921605666 U CN 201921605666U CN 210499343 U CN210499343 U CN 210499343U
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- positioning
- differential case
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Abstract
The utility model discloses a positioning fixture for a differential shell in machining center machining, which comprises a positioning table board, wherein the center of the positioning table board is provided with a positioning hole, the center of the positioning hole is provided with a positioning shaft, and the upper end of the positioning shaft is provided with a fastening nut; and a plurality of bolt holes are formed in the positioning table board. The utility model provides a positioning fixture, simple structure, the location is accurate reliable, and makes things convenient for the work piece to dismantle, can improve work efficiency.
Description
Technical Field
The utility model relates to an anchor clamps, concretely relates to positioning fixture of differential mechanism shell in processing center processing.
Background
The driving direction of an automobile is often required to be changed when the automobile is driven, and the rotating speeds of power output to hubs are different after the direction is changed in order to ensure the stability of the automobile, so that wheels can generate different linear speeds to enable the automobile to smoothly turn, and the function of a differential mechanism is realized when two driving half shafts generate different rotating speeds. As an important component, the differential case is a main part in the differential assembly and is a foundation for mounting other parts in the differential assembly. Because of the need to connect with multiple parts, a plurality of holes need to be machined, and the requirement on dimensional accuracy is high. The traditional positioning fixture is inconvenient to assemble and disassemble parts, has large positioning error, can not ensure the machining quality and is more time-consuming.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a positioning fixture of differential mechanism shell in processing center processing to above-mentioned prior art not enough.
The utility model adopts the technical proposal that:
a positioning clamp for a differential shell in machining center machining comprises a positioning table top, wherein a positioning hole is formed in the center of the positioning table top, a positioning shaft is arranged in the center of the positioning hole, and a fastening nut is mounted at the upper end of the positioning shaft; and a plurality of bolt holes are formed in the positioning table board.
Preferably, the positioning jig further comprises a pressure calculation opening gasket.
Preferably, the positioning fixture further comprises a diamond pin, and the diamond pin is connected with the bolt hole in a matched mode.
Preferably, the positioning hole is in clearance fit connection with the large end of the differential case.
More preferably, the diameter of the positioning hole is slightly larger than the outer diameter of the large end of the differential case.
Preferably, the positioning shaft is in clearance fit connection with a small end hole of the differential shell.
More preferably, the positioning shaft is slightly smaller than the inner diameter of the small end of the differential housing.
The utility model has the advantages that: the utility model provides a positioning fixture, simple structure, the location is accurate reliable, and makes things convenient for the work piece to dismantle, can improve work efficiency.
Drawings
Fig. 1 is a schematic structural view of a positioning fixture provided by the present invention;
FIG. 2 is a schematic structural view of the differential carrier housing;
fig. 3 is the utility model provides a positioning fixture clamping work piece sketch map.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a positioning fixture for differential shell in machining center machining, which comprises a positioning table board 1 and a pressure calculation opening gasket 2, wherein the center of the positioning table board 1 is provided with a positioning hole 3 (the positioning hole is in the shape of a circular groove), the center of the bottom of the positioning hole 3 is provided with a positioning shaft 4, and the upper end of the positioning shaft 4 is provided with a fastening nut 5; and a plurality of bolt holes 6 are arranged on the positioning table board 1. The positioning fixture further comprises a diamond-shaped pin 7, and the diamond-shaped pin 7 is connected with the bolt hole 6 in a matched mode.
Fig. 2 shows a schematic structural diagram of the differential case, which includes a differential case large end 11, a differential case small end 12, a differential case end face 13, and a machining hole 14. The positioning holes on the end surface 13 of the differential shell are matched with the bolt holes 6 and are connected together through mounting bolts.
As shown in fig. 3, which is a schematic view of the positioning fixture for clamping a workpiece, when the workpiece is machined, the positioning fixture is fixed on the worktable, then the big end of the differential shell is downward and is arranged in the positioning hole, the small end of the differential shell is upward, the positioning shaft penetrates out of the end hole, the end surface of the differential shell is contacted with the positioning table surface, the positioning hole on the end surface of the differential shell is matched with the bolt hole on the positioning table surface to install the bolt and is screwed up, then the fastening nut at the upper end of the positioning shaft is screwed up to prevent the workpiece from being damaged, a calculation opening gasket is arranged between the fastening nut and the small end of the differential shell, the opening of the calculation opening gasket is matched and connected with the positioning shaft, a diamond pin is installed in one bolt hole and a positioning hole in the end face of the differential case in a matched mode, the positioning hole in the clamp is used for positioning, the diamond pin is used for limiting the degree of freedom of angular rotation, the 6-point positioning principle is met, and machining of holes is conducted.
Claims (7)
1. A positioning clamp for a differential shell in machining center machining is characterized by comprising a positioning table top, wherein a positioning hole is formed in the center of the positioning table top, a positioning shaft is arranged in the center of the positioning hole, and a fastening nut is mounted at the upper end of the positioning shaft; and a plurality of bolt holes are formed in the positioning table board.
2. The differential case machining center machining fixture of claim 1, further comprising a pressure calculation split washer.
3. The positioning fixture for use in machining a center of a differential case of claim 1, further comprising a diamond pin, wherein the diamond pin is engaged with the bolt hole.
4. The differential case locating jig in a machining center according to claim 1, wherein the locating hole is in clearance fit connection with the large end of the differential case.
5. The differential case locating jig in a machining center process of claim 4, wherein the diameter of the locating hole is slightly larger than the outer diameter of the large end of the differential case.
6. The positioning fixture for machining a central part of a differential case according to claim 1, wherein the positioning shaft is in clearance fit with a small end hole of the differential case.
7. The differential case locating jig in a machining center of claim 6, wherein the locating shaft is slightly smaller than the inner diameter of the small end of the differential case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605666.4U CN210499343U (en) | 2019-09-25 | 2019-09-25 | Positioning fixture for differential shell in machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605666.4U CN210499343U (en) | 2019-09-25 | 2019-09-25 | Positioning fixture for differential shell in machining center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210499343U true CN210499343U (en) | 2020-05-12 |
Family
ID=70571421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921605666.4U Active CN210499343U (en) | 2019-09-25 | 2019-09-25 | Positioning fixture for differential shell in machining center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210499343U (en) |
-
2019
- 2019-09-25 CN CN201921605666.4U patent/CN210499343U/en active Active
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