CN213615417U - Special clamp for milling arc - Google Patents
Special clamp for milling arc Download PDFInfo
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- CN213615417U CN213615417U CN202022790820.9U CN202022790820U CN213615417U CN 213615417 U CN213615417 U CN 213615417U CN 202022790820 U CN202022790820 U CN 202022790820U CN 213615417 U CN213615417 U CN 213615417U
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Abstract
The utility model discloses a mill arc special fixture belongs to artillery part machining technical field. The frame plate consists of a vertical plate and a bottom plate, the top of the rear end of the bottom plate is fixedly welded with the vertical plate, fixing grooves which are fixed on a milling machine workbench through a pressure plate and bolts are arranged on the left side and the right side of the bottom plate, two through holes are processed in the same circle center at positions of the left upper part and the right lower part of the vertical plate corresponding to the double holes of the special-shaped shaft seat part, and a stepped sink groove is formed in the vertical plate at the rear end of each; the upper positioning pin and the lower positioning pin are both threaded stepped shafts and are in interference fit with the stepped holes of the vertical plate, a via hole cylinder fixedly connected with the front end of the stepped cylinder is in interference fit with the via holes of the vertical plate, a threaded column at the end part of the positioning pin is screwed in a hexagonal nut with a shoulder for fixing the special-shaped shaft seat part in a threaded manner, the lower positioning pin and the upper positioning pin are identical in size, shape and size, the rhomboid cylinder corresponding to the upper positioning pin is replaced by a positioning cylinder, and the diameter of the positioning cylinder is identical to that of the via hole of the special-.
Description
Technical Field
The utility model relates to a mill arc special fixture belongs to artillery part machining technical field.
Background
The problem of machining the cambered surface of a special part which is difficult to clamp is often related to the field of machining, for example, a special-shaped shaft seat is used for clamping a simple parallel jaw vice, a dividing head, a pressing plate, a bolt and the like, the size requirement and form and position tolerance of the part are difficult to guarantee or even impossible, the clamping process time is long, and the clamping machining precision often depends on the experience of an operator. In this case, a special jig is often required to machine the irregular curved surface of such a special part.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies existing in the prior art, the utility model provides a mill arc special fixture can process special-shaped axle bed part, has solved the actual problem such as cambered surface clamping is loaded down with trivial details, difficult assurance machining precision, machining efficiency are low of cambered surface clamping.
The utility model provides a technical scheme that its technical problem adopted is: a special clamp for milling an arc comprises a frame plate, an upper positioning pin, a lower positioning pin and a hexagonal nut with a shoulder, wherein the frame plate is provided with the upper positioning pin and the lower positioning pin; the frame plate is composed of vertical plates and a bottom plate, the bottom plate is a rectangular plate body, the vertical plates are regular trapezoid plate bodies, the bottom edges of the vertical plates are long edges and have the same width as the bottom plate, the top of the rear end of the bottom plate is fixedly welded with the vertical plates, fixing grooves which are fixed on a milling machine workbench through a pressure plate and bolts are arranged on the left side and the right side of the bottom plate, two through holes are machined in the same circle center at positions of the double holes of the special-shaped shaft seat part, which correspond to the upper left side and the lower right side of the vertical plate, and stepped sinking; the upper positioning pin and the lower positioning pin are both threaded stepped shafts, the upper positioning pin consists of a threaded column, a rhomboid cylinder, a via hole cylinder and a stepped cylinder, the stepped cylinder is in interference fit with a stepped sink groove of the vertical plate, the via hole cylinder fixedly connected with the front end of the stepped cylinder is in interference fit with the via hole of the vertical plate, the front end of the via hole cylinder is fixedly connected with the rhomboid cylinder extending out from the end surface of the vertical plate, the length of the rhomboid cylinder is slightly smaller than the thickness of a seat plate of the special-shaped shaft seat part, the maximum diameter of the rhomboid cylinder is the diameter of a hole of the special-shaped shaft seat part, the end part of the rhomboid cylinder is fixedly connected with the threaded column, the root part of the threaded column is provided with a threaded relief groove, the upper thread of the threaded column is screwed in a hexagon nut with a shoulder for fixing the, the diameter of the positioning cylinder is the same as that of the through hole of the special-shaped shaft seat part.
Go up the type rhombus cylinder of locating pin and the location cylinder and the cooperation of dysmorphism axle bed part hole of lower locating pin, it is spacing that lower locating pin passes through the location cylinder about with the upper and lower of dysmorphism axle bed part lower half, it is spacing about going up the locating pin through type rhombus cylinder with first one of dysmorphism axle bed part, and spacing around with the dysmorphism axle bed part through taking shoulder hexagon nut, there is the amount of advance about the type rhombus cylinder makes the installation of dysmorphism axle bed part, convenient quick installation avoids the card to pause, and make the dysmorphism axle bed part fixed with lower locating pin and taking shoulder hexagon nut.
The utility model has the advantages that: the special clamp for processing the cambered surface of the special-shaped shaft seat part is provided, the workpiece is fully utilized for hole positioning and fixing, the operation is more convenient, the shaft hole positioning can also fully ensure the processing precision, the traditional alignment process is avoided, the processing precision is ensured, the production efficiency is improved, and the production cost is reduced.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the special-shaped shaft seat part.
Fig. 3 is a schematic structural diagram of the installation of the special-shaped shaft seat part on the utility model.
Fig. 4 is a sectional view of the special-shaped shaft seat part installed on the utility model.
Fig. 5 is a side view of the special-shaped shaft seat part installed on the utility model with a partial section.
Fig. 6 is an exploded view of the mounting of the special-shaped shaft seat part on the utility model.
Fig. 7 is a schematic structural view of the frame plate of the present invention.
Fig. 8 is a front view of the upper positioning pin of the present invention.
Fig. 9 is a side view of the lower positioning pin of the present invention.
Reference numbers in the figures:
1. frame plate, 2, special-shaped axle bed part, 3, go up the locating pin, 4, lower locating pin, 5, take shoulder hexagon nut, 11, riser, 12, bottom plate, 13, fixed recess, 14, ladder heavy groove, 15, via hole, 21, area processing riser, 31, screw thread post, 32, class rhombus cylinder, 33, via hole cylinder, 34, ladder cylinder, 43, location cylinder.
Detailed Description
As shown in fig. 1-9, a special fixture for milling an arc shape comprises a frame plate 1, an upper positioning pin 3, a lower positioning pin 4 and a hexagonal nut with shoulder 5, wherein the frame plate 1 is provided with the upper positioning pin 3 and the lower positioning pin 4, a special-shaped shaft seat part 2 is fixed on the upper positioning pin 3 and the lower positioning pin 4 of the frame plate 1 through the hexagonal nut with shoulder 5, and the frame plate 1 is fixed on a milling machine table-board, so that a vertical plate 21 with processing of the special-shaped shaft seat part 2 is parallel to the milling machine table-board; the frame plate 1 is composed of a vertical plate 11 and a bottom plate 12, the bottom plate 12 is a rectangular plate body, the vertical plate 11 is a regular trapezoid plate body, the bottom edge of the vertical plate 11 is a long edge and has the same width as the bottom plate 12, the top of the rear end of the bottom plate 12 is fixed with the vertical plate 11 by welding, fixing grooves 13 which are fixed on a milling machine workbench by a pressing plate and bolts are arranged on the left side and the right side of the bottom plate 12, two through holes 15 are concentrically processed at positions of the two holes of the special-shaped shaft seat part 2 corresponding to the upper left side and the lower right side of the vertical plate 11, and a step sink 14 is arranged on the; the upper positioning pin 3 and the lower positioning pin 4 are both threaded stepped shafts, the upper positioning pin 3 consists of a threaded column 31, a rhomboid cylinder 32, a via hole cylinder 33 and a stepped cylinder 34, the stepped cylinder 34 is in interference fit with a stepped sunken groove 14 of the vertical plate 11, the via hole cylinder 33 fixedly connected with the front end of the stepped cylinder 34 is in interference fit with a via hole 15 of the vertical plate 11, the rhomboid cylinder 32 extending from the end surface of the vertical plate 11 is fixedly connected with the front end of the via hole cylinder 33, the rhomboid cylinder 32 is slightly smaller than the thickness of a seat plate of the special-shaped shaft seat part 2 in length, the maximum diameter of the rhomboid cylinder 32 is the hole diameter of the special-shaped shaft seat part 2, the end part of the rhomboid cylinder 32 is fixedly connected with the threaded column 31, a threaded relief groove is formed in the root part of the threaded column 31, a shoulder nut 5 for fixing the special-, The shape and the size are the same, the rhomboid column 32 corresponding to the upper positioning pin 3 is replaced by a positioning column 43, and the diameter of the positioning column 43 is the same as that of the through hole of the special-shaped shaft seat part 2.
Go up type rhombus cylinder 32 of locating pin 3 and the positioning cylinder 43 and the cooperation of dysmorphism axle bed part 2 hole of lower locating pin 4, it is spacing about the upper and lower of dysmorphism axle bed part 2 lower half through positioning cylinder 43 down to locate pin 4, it is spacing about the upper of type rhombus cylinder 32 with the first of dysmorphism axle bed part 2 to go up locating pin 3, and spacing around 2 special-shaped axle bed parts 2 through taking shoulder hexagon nut 5, there is the amount of advance about when type rhombus cylinder 32 makes 2 installation of dysmorphism axle bed parts, convenient quick installation, avoid the card to pause, and make 2 fixed of special-shaped axle bed parts with lower locating pin 4 and 5 of taking shoulder hexagon nuts.
Claims (1)
1. A special clamp for milling an arc comprises a frame plate (1), an upper positioning pin (3), a lower positioning pin (4) and a hexagonal nut with a shoulder (5), wherein the frame plate (1) is provided with the upper positioning pin (3) and the lower positioning pin (4), a special-shaped shaft seat part (2) is fixed on the upper positioning pin (3) and the lower positioning pin (4) of the frame plate (1) through the hexagonal nut with the shoulder (5), the frame plate (1) is fixed on a milling machine table board, and a vertical plate (21) with a processing function of the special-shaped shaft seat part (2) is parallel to the milling machine table board; the method is characterized in that: the frame plate (1) is composed of a vertical plate (11) and a bottom plate (12), the bottom plate (12) is a rectangular plate body, the vertical plate (11) is a regular trapezoid plate body, the bottom edge of the vertical plate (11) is a long edge and has the same width with the bottom plate (12), the top of the rear end of the bottom plate (12) is fixedly welded with the vertical plate (11), fixing grooves (13) which are fixed on a milling machine workbench through pressing plates and bolts are arranged on the left side and the right side of the bottom plate (12), two through holes (15) are concentrically processed at positions, corresponding to double holes of the special-shaped shaft seat part (2), of the upper left side and the lower right side of the vertical plate (11), and a stepped sink (14) is formed in the vertical plate (11) at; the upper positioning pin (3) and the lower positioning pin (4) are threaded stepped shafts, the upper positioning pin (3) consists of a threaded column (31), a diamond-like cylinder (32), a via hole cylinder (33) and a stepped cylinder (34), the stepped cylinder (34) is in interference fit with a stepped sink (14) of the vertical plate (11), the via hole cylinder (33) fixedly connected with the front end of the stepped cylinder (34) is in interference fit with a via hole (15) of the vertical plate (11), the diamond-like cylinder (32) extending out of the end face of the vertical plate (11) is fixedly connected with the front end of the via hole cylinder (33), the length of the diamond-like cylinder (32) is slightly smaller than the thickness of a seat plate of the special-shaped shaft seat part (2), the maximum diameter of the diamond-like cylinder (32) is the diameter of the hole of the special-shaped shaft seat part (2), the threaded column (31) is fixedly connected with the end part of the diamond, the threaded column (31) is screwed with a hexagonal nut (5) with a shoulder for fixing the special-shaped shaft seat part (2), the lower positioning pin (4) is the same as the upper positioning pin (3) in size, shape and dimension, the diamond-like cylinder (32) corresponding to the upper positioning pin (3) is replaced by a positioning cylinder (43), and the diameter of the positioning cylinder (43) is the same as that of a via hole of the special-shaped shaft seat part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022790820.9U CN213615417U (en) | 2020-11-27 | 2020-11-27 | Special clamp for milling arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022790820.9U CN213615417U (en) | 2020-11-27 | 2020-11-27 | Special clamp for milling arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213615417U true CN213615417U (en) | 2021-07-06 |
Family
ID=76636925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022790820.9U Active CN213615417U (en) | 2020-11-27 | 2020-11-27 | Special clamp for milling arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213615417U (en) |
-
2020
- 2020-11-27 CN CN202022790820.9U patent/CN213615417U/en active Active
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