CN217193917U - Turning, milling and grinding clamping tool with outer circle positioning end face - Google Patents
Turning, milling and grinding clamping tool with outer circle positioning end face Download PDFInfo
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- CN217193917U CN217193917U CN202220119376.4U CN202220119376U CN217193917U CN 217193917 U CN217193917 U CN 217193917U CN 202220119376 U CN202220119376 U CN 202220119376U CN 217193917 U CN217193917 U CN 217193917U
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Abstract
The utility model relates to a machine tooling technical field specifically discloses a turn-milling grinds clamping frock with excircle location terminal surface, including positioning core axle, terminal surface clamp plate, lock nut, wherein in the positioning core axle periphery and be close to its one end position department and process limited boss, the positioning core axle other end is the diameter and dwindles the end and this diameter dwindles the end periphery processing and has the external screw thread for the diameter, and the terminal surface clamp plate cover is established and is served and narrow the end through the lock nut who dwindles end screw-thread fit with the positioning core axle diameter with the terminal surface clamp plate spacing on the terminal surface clamp plate's diameter dwindles distolaterally at the terminal surface clamp plate's diameter at the positioning core axle diameter. The utility model has the advantages of reasonable design, simple structure, low in manufacturing cost, application scope are wide.
Description
Technical Field
The utility model belongs to the technical field of the milling of turning in the machining grinds, a clamping frock is ground in turning that outer circle location terminal surface presss from both sides tightly is related to.
Background
The landing gear bears larger impact force during the taking off and landing of the airplane, and particularly for a landing gear bumper wheel axle part 1 (the structure is shown in figure 1 and is composed of a straight-tube-shaped small head part 1.1, a conical-tube-shaped middle part 1.2 and a straight-tube-shaped large head part 1.3, wherein the inner diameter of the large head part 1.3 is consistent and is positioned at the larger inner diameter end of the middle part 1.2, the inner diameter of the small head part 1.1 is consistent and is positioned at the smaller inner diameter end of the middle part 1.2, the inner diameter of the middle part 1.2 is gradually increased from the end close to the small head part 1.1 to the end close to the large head part 1.3, three holes 1.4 are formed in the peripheral wall of the middle part 1.2 and close to the small head part), a piston rod and a hub are required to be connected, and the wall is thin. In order to ensure the assembly precision of parts, the coaxiality requirement of an inner hole and an outer circle of the undercarriage bumper wheel shaft part 1 is higher, and hard chrome is generally plated on the inner hole, the end face and other parts of the undercarriage bumper wheel shaft part, so that the machining process difficulty of turning, milling, grinding and the like is relatively higher, and the lead cycle is long. In the prior art, in order to ensure that a part is not deformed in machining, in the processes of turning, milling and grinding, a tool must be designed and machined separately to manufacture a lathe fixture, a milling machine fixture and a grinding machine fixture respectively, and the mode has low working efficiency and seriously affects the delivery time of the product.
Disclosure of Invention
The utility model aims at providing a structural design is reasonable and can satisfy simultaneously car processing, mill processing, grind the turning-milling of excircle location terminal surface and grind the clamping frock that exists to above-mentioned prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the turning, milling and grinding clamping tool is characterized by comprising a positioning mandrel, an end face pressing plate and a locking nut, wherein a limiting boss is machined on the periphery of the positioning mandrel and close to one end of the positioning mandrel, the other end of the positioning mandrel is a diameter reducing end, external threads are machined on the periphery of the diameter reducing end, the end face pressing plate is sleeved on the diameter reducing end of the positioning mandrel, and the end face pressing plate is limited on the diameter reducing end side of the end face pressing plate through the locking nut in threaded fit with the diameter reducing end of the positioning mandrel.
Preferably, a first positioning reference surface and a second positioning reference surface are formed on the positioning mandrel, wherein the outer diameter of a circle where the first positioning reference surface is located is smaller than that of a circle where the outer edge of the limiting boss is located, and a step shape is formed between the first positioning reference surface and the second positioning reference surface; the limiting boss, the first reference surface and the second reference surface are coaxially arranged; the first positioning reference surface is attached to the inner wall of the straight-cylindrical large head part of the undercarriage buffer, and the second positioning reference surface is attached to the inner wall of the straight-cylindrical small head part of the undercarriage buffer; the end face pressing plate is located on one side of the second positioning datum plane, and the outer diameter of the end face pressing plate is larger than that of the second positioning datum plane.
Preferably, the outer diameters of the parts, located between the first positioning reference surface and the second positioning reference surface, of the positioning mandrel are smaller than the outer diameters of the first positioning reference surface and the second positioning reference surface. This design not only can effectively alleviate the utility model discloses the whole weight of frock can play the effect of stepping down when three holes above the milling machine processing undercarriage buffer moreover, avoids influencing drilling operation.
Preferably, the positioning mandrel is drilled in the axial center. This design further alleviates the utility model discloses the whole weight of frock.
Compared with the prior art, the utility model discloses the beneficial effect who possesses is:
1. the utility model can clamp the workpiece in the modes of excircle positioning and two end face pressing through the arrangement of the limiting boss on the positioning core shaft, the end face pressing plate, the locking nut and the like, and can effectively avoid the deformation of the workpiece in the clamping process;
2. the utility model can be applied to turning, milling and grinding by taking the excircle as the positioning reference, effectively improve the processing efficiency and save the processing cost;
3. the utility model has the advantages of reasonable design, simple structure, low in manufacturing cost, application scope are wide.
Drawings
FIG. 1 is a schematic view of a prior art construction of a work piece (i.e., a landing gear bumper axle portion);
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of a half-section of the structure of the present invention;
FIG. 4 is a schematic view of a half-section state of a workpiece clamped on the present invention;
1. the undercarriage bumper comprises an undercarriage bumper wheel shaft part, a small head part, a middle part, a large head part, a hole, a positioning mandrel, a diameter reduction end, a limiting boss, an end surface pressing plate, a locking nut, a first positioning reference surface, a second positioning reference surface, a middle excircle and a positioning mandrel, wherein the undercarriage bumper wheel shaft part comprises 1.1, a small head part, 1.2, the middle part, 1.3, the large head part, 1.4, the hole, 2, the positioning mandrel, 2.1, the diameter reduction end, 3, the limiting boss, 4, the end surface pressing plate, 5, the locking nut, A, the first positioning reference surface, B, the second positioning reference surface and C.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings. The following is the most preferable scheme of the present invention, but it does not limit the protection scope of the present invention, and any equivalent or similar replacement without departing from the concept of the present invention should fall within the protection scope of the present invention. And all parts not described in detail below should be performed as in the prior art.
As shown in fig. 2-4, the turning, milling, grinding and clamping tool with an excircle positioning end face of the present invention comprises a positioning mandrel 2, an end face pressing plate 4 and a locking nut 5, wherein the axis of the positioning mandrel 2 is drilled, that is, a through hole running through the positioning mandrel 2 in the length direction is formed in the positioning mandrel; a limiting boss 3 is machined on the periphery of the positioning mandrel 2 and close to the left end of the positioning mandrel, and the outer diameter of the limiting boss 3 is larger than that of the rest part of the positioning mandrel 2; a circular first positioning reference surface A is formed on the positioning mandrel 2 and positioned on the right side of the limiting boss 3, the outer wall of the first positioning reference surface A is attached to the inner wall of the large head part 1.3 of the undercarriage bumper axle part 1, and the first positioning reference surface A is used for positioning the large head part 1.3 of the undercarriage bumper axle part 1; the outer diameter of the circle where the first positioning reference surface A is located is smaller than the outer diameter of the circle where the outer edge of the limiting boss 3 is located, and a step shape is formed between the first positioning reference surface A and the limiting boss; the right end of the positioning mandrel 2 is a diameter-reduced end 2.1 with the outer diameter smaller than the outer diameter of all the rest parts of the positioning mandrel 2, a section of external thread is processed on the outer circular wall of the diameter-reduced end 2.1, a circular second positioning reference surface B is formed on the positioning mandrel 2 and on the left side of the diameter-reduced end 2.1, the outer circle of the second positioning reference surface B is attached to the inner wall of a small head part 1.1 of the undercarriage bumper axle part 1, and the second positioning reference surface B is used for positioning the small head part 1.1 of the undercarriage bumper axle part 1; a circular assembly platform matched with the end face pressing plate 4 is formed on the positioning mandrel 2 and between the diameter reduction end 2.1 and the second positioning datum plane B, the outer diameter of the circular assembly platform is smaller than that of the second positioning datum plane B, the end face pressing plate 4 is sleeved outside the circular assembly platform, a hole is formed in the center of the end face pressing plate 4, the inner wall of the hole is attached to the outer wall of the circular assembly platform, and after assembly is completed, the outer diameter of the end face pressing plate 4 is larger than that of the second positioning datum plane B; a locking nut 5 is in threaded fit with the diameter-reduced end 2.1, and the end-face pressure plate 4 is locked between the diameter-reduced end 2.1 and the second positioning reference surface B through the locking nut 5; the utility model discloses a positioning core axle 2, spacing boss 3, first reference surface A, second reference surface B, terminal surface clamp plate 4 several people keep highly coaxial setting.
The utility model discloses a positioning core axle 2 is last and be located the external diameter of the part (outer circle C in the middle of being called) between first location reference face A and the second location reference face B and all be less than first location reference face A external diameter, second location reference face B external diameter. Not only can effectively alleviate the utility model discloses the whole weight of frock can play the effect of stepping down when three holes above the milling machine processing undercarriage buffer moreover, avoids influencing drilling operation.
Before the workpiece 1 is clamped, the end surface pressing plate 4 and the locking nut 5 are removed from the positioning core shaft 2. When the undercarriage buffer wheel shaft part is used, an inner hole of a large head part 1.3 of the undercarriage buffer wheel shaft part 1 is aligned with a diameter reduction end 2.1 of the positioning mandrel 2 and inserted until the end of the large head part 1.3 of the undercarriage buffer wheel shaft part 1 is limited at a limiting boss 3, at the moment, the inner wall of the large head part 1.3 of the undercarriage buffer wheel shaft part is attached to the outer wall of a first positioning datum plane A of the positioning mandrel 2, the inner wall of a small head part 1.1 of the undercarriage buffer wheel shaft part is attached to the outer wall of a second positioning datum plane B of the positioning mandrel 2, the end surface pressing plate 4 is sleeved on the undercarriage buffer wheel shaft part, the end surface pressing plate 4 is locked by the locking nut 5, and the workpiece 1 is limited between the end surface pressing plate 4 and the limiting boss 3, so that clamping is completed. Then processing the excircle and external taper of the workpiece on a lathe, and grinding the excircle before and after plating because the excircle is required to be plated with hard chromium; and because the workpiece requires drilling, the workpiece is clamped and drilled in a two-top mode.
Claims (4)
1. The turning, milling and grinding clamping tool is characterized by comprising a positioning mandrel, an end face pressing plate and a locking nut, wherein a limiting boss is machined on the periphery of the positioning mandrel and close to one end of the positioning mandrel, the other end of the positioning mandrel is a diameter reducing end, external threads are machined on the periphery of the diameter reducing end, the end face pressing plate is sleeved on the diameter reducing end of the positioning mandrel, and the end face pressing plate is limited on the diameter reducing end side of the end face pressing plate through the locking nut in threaded fit with the diameter reducing end of the positioning mandrel.
2. The turning, milling, grinding and clamping tool for the outer circle positioning end face according to claim 1, wherein a first positioning reference face and a second positioning reference face are formed on the positioning mandrel, wherein the outer diameter of a circle where the first positioning reference face is located is smaller than the outer diameter of a circle where the outer edge of the limiting boss is located, and a step shape is formed between the first positioning reference face and the second positioning reference face; the limiting boss, the first reference surface and the second reference surface are coaxially arranged; the first positioning reference surface is attached to the inner wall of the straight-cylindrical large head part of the undercarriage buffer, and the second positioning reference surface is attached to the inner wall of the straight-cylindrical small head part of the undercarriage buffer; the end face pressing plate is located on one side of the second positioning datum plane, and the outer diameter of the end face pressing plate is larger than that of the second positioning datum plane.
3. The turning, milling, grinding and clamping tool for the excircle positioning end face according to claim 1 or 2, wherein the outer diameters of the parts, located between the first positioning reference face and the second positioning reference face, of the positioning mandrel are smaller than the outer diameters of the first positioning reference face and the second positioning reference face.
4. The turning, milling, grinding and clamping tool for the excircle positioning end face as claimed in claim 3, wherein the axis of the positioning mandrel is drilled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220119376.4U CN217193917U (en) | 2022-01-18 | 2022-01-18 | Turning, milling and grinding clamping tool with outer circle positioning end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220119376.4U CN217193917U (en) | 2022-01-18 | 2022-01-18 | Turning, milling and grinding clamping tool with outer circle positioning end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217193917U true CN217193917U (en) | 2022-08-16 |
Family
ID=82792616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220119376.4U Active CN217193917U (en) | 2022-01-18 | 2022-01-18 | Turning, milling and grinding clamping tool with outer circle positioning end face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217193917U (en) |
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2022
- 2022-01-18 CN CN202220119376.4U patent/CN217193917U/en active Active
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