A kind of tool of processing sheet foursquare arc
Technical field
The utility model is related to a kind of tool of processing sheet, more particularly to a kind of tool of processing sheet foursquare arc.
Background technology
Currently, to improve safety or the aesthetics of thin plate, processing fillet is frequently necessary in some plate faces.In the past into
When this processing of row, punch forming is usually used.Punch forming processing needs higher mold input cost, more especially
When (such as car door, protecgulum, rear cover etc.) processing is similar to fillet on large-scale, overlength size thin-slab structure part, required mould
Has a cost higher, and the installation of mold, debugging difficulty also bigger, the scale of required mating press is also very big, causes
High processing costs, processing efficiency are low, and the process-cycle is long.
Invention content
The utility model provides a kind of simple in structure, processing cost to solve technical problem present in known technology
The tool of processing sheet foursquare arc low, high in machining efficiency.
The utility model is adopted the technical scheme that solve technical problem present in known technology:A kind of processing is thin
The tool of plate foursquare arc, including cylindric tool body, it is circle that tool body lower end periphery surface, which is equipped with cross section,
The column piercing tip of arc, the piercing tip include upper mounting portion and lower blade, and the lower blade protrudes from the tool
The lower face of ontology.
Further, the tool body lower end is equipped with shoulder, the top surface of the piercing tip and shoulder end face phase
It connects.
Further, the radian of the upper mounting portion of the piercing tip is more than the radian of the lower blade.
Further, the tool body bottom centre is equipped with the upper, middle and lower segment ladder blind hole that diameter is sequentially increased,
The epimere of the blind hole is threaded hole, and spring is equipped in the stage casing of the blind hole, spring bearer plate is equipped in the hypomere of the blind hole;
The spring and the spring bearer plate are socketed on the first screw;First screw screws in the threaded hole.
Further, the lower face center of the spring bearer plate is concave up at the first groove, the spiral shell of first screw
Cap is located in first groove;First groove is matched with the positioning pin on workpiece positioning tool.
Further, further include the blade fixation clip engaged with the piercing tip outer round surface, the punching cutter
Piece and the blade fixation clip are affixed by the second screw and tool body lower end periphery surface.
Further, second screw is multiple, and the circumferential direction along the piercing tip is uniformly distributed.
Further, the blade fixation clip back to the surface of the piercing tip be equipped with the second groove, described second
The nut of screw is located in second groove.
Further, the tool body is socketed on pressure head and affixed with pressure head.
The utility model has the advantages and positive effects of:The utility model mechanism is simple, using existing punching press
Equipment and jig combine simplicity with jig, can be used for cutting the thin plate workpiece of large-size, such as the thin plate of 800mm*600mm;
The thin plate of 600mm*600mm etc. is a variety of, need not design new mold and tooling, save cost, improve production efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the sectional view of the utility model;
Fig. 3 is the A of Fig. 2 to structural schematic diagram.
In figure:1, tool body;2, shoulder;3, spring bearer plate;4, the first screw;5, spring;6, blade fixation clip;7、
Second screw;8, piercing tip;A, the radian of lower blade.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, following embodiment is hereby enumerated, and coordinate
Detailed description are as follows for attached drawing:
Refer to Fig. 1 to 3, a kind of tool of processing sheet foursquare arc, including cylindric tool body 1, the tool
It is arc-shaped column piercing tip 8 that 1 lower end periphery surface of ontology, which is equipped with cross section, and the piercing tip 8 includes upper installation
Portion and lower blade, the lower blade protrude from the lower face of the tool body 1.The radian and inner circle radius of the lower blade with
Thin plate foursquare arc process matches, and the radian a of the lower blade can be slightly larger than the radian of processing sheet fillet.
Further, 1 lower end of the tool body can be equipped with shoulder 2, the top surface of the piercing tip 8 and the shoulder 2
End face connects.Shoulder 2 bears reaction force when piercing tip 8 is punched.
Further, the radian of the upper mounting portion of the piercing tip can be more than the radian of the lower blade.
Further, it is blind can be equipped with the upper, middle and lower segment ladder that diameter is sequentially increased for 1 bottom centre of the tool body
The epimere in hole, the blind hole can be threaded hole, can be equipped with spring 5 in the stage casing of the blind hole, can be set in the hypomere of the blind hole
There is spring bearer plate 3;The spring and the spring bearer plate 3 can be socketed on the first screw 4;First screw 4 screws in institute
It states in threaded hole.
Further, the lower face center of the spring bearer plate 3 can be recessed into the first groove, first screw 4 upwards
Nut be located in first groove;First groove can be matched with the positioning pin on workpiece positioning tool.
Further, it may also include the blade fixation clip 6 engaged with 8 outer round surface of the piercing tip, the punching
Cutting edge 8 and the blade fixation clip 6 can be affixed by the second screw 7 and 1 lower end periphery surface of the tool body.
Further, second screw 7 can be multiple, can be uniformly distributed along the circumferential direction of the piercing tip 8.
Further, the blade fixation clip 6 can be equipped with the second groove back to the surface of the piercing tip 8, described
The nut of second screw 7 can be located in second groove.
Further, the tool body 1 can be socketed on pressure head and affixed with pressure head, and 1 upper end of the tool body can
If external screw thread, it can be threaded connection with pressure head, the tool body 1 and pressure head can set pin hole, and the tool body 1 can pass through pin
Axis is affixed with pressure head.
The operation principle of the utility model:The radian and inner circle radius of the piercing tip 8 and thin plate four to be processed
Angle circular arc process matches.Using existing stamping equipment and jig, tool body 1 is processed, installation punching
The tool body 1 for installing piercing tip 8 is mounted on stamping equipment by blade 8, can be with other tool bodies 1 when processing sheet
Combination punching thin plate together, is completed at the same time multiple processes, can also individually be punched the foursquare arc of thin plate;The utility model can be with
Only one in processing quadrangle, so not needing the larger equipment of mesa dimensions.The equipment for both having saved large-scale mesa dimensions in this way is adopted
Cost is purchased, die manufacturing cost is also saved, while can also be carried out at the same time processing with other processes, saves working hour.
The course of work:
Workpiece positioning tool is placed on press bench.The cutting being connected on the tool body 1 of forcing press can be used
First groove of circular arc spring pressing plate 3 is matched with the positioning pin on workpiece positioning tool to carry out, to just positioning, making tool body 1
Opposite tool locating, sheet workpiece are positioned by positioning tool (locating piece).When processing, forcing press drives tool body 1 to connect
With 8 downward punching press of piercing tip, punching, spring bearer plate 3 is first contacted with workpiece, and is pressed since the effect of spring 5 applies workpiece
Power, workpiece pressing, then 8 contact workpiece of piercing tip, cut workpiece one jiao is cut in stamping press undershoot, and punching is in the arc-shaped.
Embodiment described above is merely to illustrate the technological thought and feature of the utility model, and its object is to make ability
Technical staff in domain only cannot limit this practicality it will be appreciated that the content of the utility model and implement according to this with the present embodiment
Novel the scope of the claims, i.e., same changes or modifications made by the revealed spirit of all the utility model, still fall this practicality newly
In the scope of the claims of type.