CN209850379U - Self-adaptive supporting base for machining clamp - Google Patents
Self-adaptive supporting base for machining clamp Download PDFInfo
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- CN209850379U CN209850379U CN201920168996.5U CN201920168996U CN209850379U CN 209850379 U CN209850379 U CN 209850379U CN 201920168996 U CN201920168996 U CN 201920168996U CN 209850379 U CN209850379 U CN 209850379U
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- hemisphere
- support
- self
- cylindrical rod
- class part
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Abstract
The utility model relates to a self-adaptation supports base for add clamping apparatus, support the hemisphere and support the ladder cylinder pole by the magnetism matter and constitute, the magnetism matter supports the hemisphere and installs on supporting the ladder cylinder pole through the sphere cooperation, the magnetism matter supports the hemisphere and can self-adaptation rotation under the exogenic action, thereby make casing class part and magnetism matter support hemisphere be the face-to-face contact, avoid the point (line) contact that leads to because of casing class part locating surface plane degree is not good, the deformation of casing class part clamping in-process has been reduced, thereby the machining precision of casing class part has been guaranteed, the simple structure that this self-adaptation adjustment supported simultaneously, be fit for extending the multiple spot location, thereby improve the flexibility and the precision of modular fixture.
Description
Technical Field
The utility model belongs to the technical field of gearbox housing class parts machining, in particular to self-adaptation support base for add clamping apparatus.
Background
At present, the automobile transmission shell is mainly made of aluminum alloy materials, small-batch trial production is mainly used in the research and development stage, the limit of the period and the cost is met, the blank of the transmission shell is mainly cast by sand molds, and simple clamps and cutters are used for finishing machining.
The machining size precision of the automobile transmission shell is mostly 6-level precision and above, the requirement on the position degree of a positioning pin hole and a bearing hole is generally 0.025mm, and the machining precision of the shell directly influences the assembly quality, NVH (noise vibration harshness) and other performances of the transmission assembly. As the transmission shell is a typical thin-wall part, the wall thickness is generally 3-4 mm, and the transmission shell is easy to clamp and deform in the machining process. Therefore, in the small-batch trial production process, the design and manufacture of the shell clamping mode and the simple clamp are important factors for ensuring the machining precision of the shell.
In the development stage of the automobile transmission, the blank machining allowance of the transmission shell cast by sand mold is large and uneven, the casting reference is not accurate, the consistency of the blank machined by a common machine is poor, the clamping and positioning accuracy of the existing simple clamp is limited, the shell deforms in the clamping process, and the machining accuracy cannot be guaranteed.
Disclosure of Invention
The utility model discloses an aim at just lies in to above-mentioned prior art not enough, provides a self-adaptation support base for add clamping apparatus, can effectively improve sand cast blank clamping positioning accuracy, reduces casing clamping deformation degree, and then guarantees casing machining precision.
The utility model aims at realizing through the following technical scheme:
a self-adaptive supporting base for a machining clamp is composed of a magnetic supporting hemisphere 1 and a supporting stepped cylindrical rod 2. The magnetic support hemisphere 1 is arranged on the support stepped cylindrical rod 2 in a matched mode through a spherical surface, and the magnetic support hemisphere 1 can rotate in a self-adaptive mode under the action of external force; the magnetic support hemisphere (1) and the support stepped cylindrical rod (2) can slide relatively without displacement change.
One side of the plane of the magnetic substance supporting hemisphere 1 is a sawtooth-shaped surface.
The diameter D2 of the upper cylinder of the supporting stepped cylindrical rod 2 is slightly smaller than the diameter D1 of the ball of the magnetic supporting hemisphere, and the end face of the upper cylinder of the supporting stepped cylindrical rod 2 is processed into an inner spherical surface with the diameter D1.
The sphere diameter of the magnetic support hemisphere (1) is more than or equal to 20 mm.
Compared with the prior art, the beneficial effects of the utility model reside in that: the locating surface of casing class part and the sawtooth plane contact and the casing class part atress of magnetism matter support hemisphere compress tightly the back, support the sphere cooperation between hemisphere and the support cylinder pole through magnetism matter, but magnetism matter supports hemisphere self-adaptation rotation, thereby make casing class part and magnetism matter support hemisphere be the face-to-face contact, avoid because of the not good point (line) contact that leads to of casing class part locating surface plane degree, the deformation of casing class part clamping in-process has been reduced, thereby the machining precision of casing class part has been guaranteed, the simple structure of this self-adaptation regulation support simultaneously, be fit for expanding to the multiple spot location, thereby improve modular fixture's flexibility and precision.
Drawings
Fig. 1 is a schematic structural view of an adaptive support base for a machining fixture according to the present invention;
fig. 2 is an assembly view of an adaptive support base for a machining fixture.
In the figure, 1, a magnetic support hemisphere 2, a support stepped cylindrical rod 3, a pressure plate 4 and a shell part are arranged.
Detailed Description
A self-adaptive supporting base for a machining clamp is composed of a magnetic supporting hemisphere 1 and a supporting stepped cylindrical rod 2. The magnetic substance supporting hemisphere 1 adopts magnetic steel as a raw material, preferably more than or equal to 20mm is selected according to the requirements of supporting rigidity, the size of a positioning contact surface of a shell part and the like, and the size is further enlarged according to specific requirements. The magnetic steel ball is cut off into saw-toothed shape by wire cutting, the density of the saw-toothed shape can be adjusted according to the actual size of the steel ball, and the surface is processed by deburring. The diameter of the upper end cylinder of the support stepped cylindrical rod 2 is slightly smaller than the spherical diameter of the magnetic support hemisphere 1, and the upper end of the support stepped cylindrical rod is processed into an inner spherical surface consistent with the spherical diameter of the magnetic support hemisphere 1. The magnetic support hemisphere 1 is placed in the support stepped cylindrical rod 2 through spherical surface matching, and due to strong adsorption of magnetic steel, the two parts cannot fall off after being combined and can slide relatively without displacement change.
As shown in fig. 2, an adaptive support base with a proper size is selected according to the structure and size of the shell part 4, and before the adaptive support base is pressed by the pressing plate 3, the sawtooth surface of the magnetic support hemisphere 1 is confirmed to be completely attached to the positioning contact surface of the shell part 4.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a processing is self-adaptation support base for anchor clamps which characterized in that: the magnetic support device is characterized by comprising a magnetic support hemisphere (1) and a support stepped cylindrical rod (2), wherein the magnetic support hemisphere (1) is installed on the support stepped cylindrical rod (2) in a matched mode through a spherical surface, the magnetic support hemisphere (1) can rotate in a self-adaptive mode under the action of external force, and the magnetic support hemisphere (1) and the support stepped cylindrical rod (2) can slide relatively but have no displacement change;
one side of the plane of the magnetic support hemisphere (1) is a sawtooth-shaped surface, the diameter D2 of the upper cylinder of the support stepped cylindrical rod (2) is smaller than the diameter D1 of the sphere of the magnetic support hemisphere (1), and the end face of the upper cylinder of the support stepped cylindrical rod (2) is processed into an inner spherical surface with the sphere diameter D1.
2. The adaptive support base for a machining jig according to claim 1, characterized in that: the sphere diameter of the magnetic support hemisphere (1) is more than or equal to 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168996.5U CN209850379U (en) | 2019-01-31 | 2019-01-31 | Self-adaptive supporting base for machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168996.5U CN209850379U (en) | 2019-01-31 | 2019-01-31 | Self-adaptive supporting base for machining clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209850379U true CN209850379U (en) | 2019-12-27 |
Family
ID=68931578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920168996.5U Active CN209850379U (en) | 2019-01-31 | 2019-01-31 | Self-adaptive supporting base for machining clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209850379U (en) |
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2019
- 2019-01-31 CN CN201920168996.5U patent/CN209850379U/en active Active
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