CN112846006B - Round pin axle is cuted chamfer integral type mould - Google Patents
Round pin axle is cuted chamfer integral type mould Download PDFInfo
- Publication number
- CN112846006B CN112846006B CN202011561099.4A CN202011561099A CN112846006B CN 112846006 B CN112846006 B CN 112846006B CN 202011561099 A CN202011561099 A CN 202011561099A CN 112846006 B CN112846006 B CN 112846006B
- Authority
- CN
- China
- Prior art keywords
- chamfering
- shearing
- hole
- groove
- blanking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F45/00—Wire-working in the manufacture of other particular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/02—Straightening
- B21F1/026—Straightening and cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
Shearing and chamfering integrated die for a pin shaft, wherein the shearing and chamfering die is used for processing wires into pin shaft workpieces, and comprises an upper die part and a lower die part, the upper die part comprises an upper die base plate, a plurality of guide pillars at the bottom of an upper die plate and an upper die plate, the lower die part comprises a lower die base, a plurality of guide sleeves on the lower die plate and the lower die plate, mutually-perpendicular shearing grooves and chamfering grooves are formed in the lower die plate, blanking holes are formed in the lower die plate and the lower die base at the intersection positions of the shearing grooves and the chamfering grooves, static cutter seats and static cutting limiting seats are respectively arranged on the lower die plates on the two sides of the shearing grooves and the blanking holes, shearing sliders are arranged in the shearing grooves, movable cutter seats are connected to the front sides of the shearing sliders, movable cutters are arranged on the movable cutter seats, chamfering sliders are respectively arranged in the two sides of the blanking holes, and chamfering female dies are installed on the chamfering sliders. The invention adopts the shearing, chamfering and blanking integrated die to process and produce the positioning pin products, and has the characteristics of short process flow, high processing efficiency, good product consistency, low cost and the like.
Description
Technical Field
The invention relates to the technical field of standard cylindrical pin shaft machining and manufacturing, in particular to a pin shaft shearing and chamfering integrated die.
Background
The cylindrical positioning pin is one of the most common standard parts, and the existing common machining process is as follows: shearing and blanking, turning chamfers at two ends, heat treatment, grinding and the like. The shearing and blanking process generally adopts a special bar shearing machine, the static cutter is of a lantern ring type structure, the dynamic cutter is of a semicircular structure, and a radial clamping mechanism is not arranged. Both ends of the finished product are required to be machined after blanking, a double-end chamfering machine is generally adopted for chamfering turning, chamfering turning efficiency is low, chamfering precision is poor, defective parts can be generated frequently, such as phenomena that one end leaks chamfers and the end is bent, and for industries with higher quality consistency requirements, such as the automobile industry, 100% screening of finished products is required, unqualified parts are eliminated, and great cost is increased.
The existing processing technology of the cylindrical positioning pin has the defects of long technological process, low processing efficiency, poor product quality consistency, high cost and the like.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a pin shaft shearing and chamfering integrated die, which is used for machining and producing positioning pin products by adopting a shearing, chamfering and blanking integrated die.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the shearing and chamfering integrated die for the pin shaft comprises an upper die part and a lower die part, wherein the upper die part comprises an upper die base plate, an upper die plate and a plurality of guide pillars at the bottom of the upper die plate, the lower die part comprises a lower die base, a lower die plate and a plurality of guide sleeves on the lower die plate, a shearing groove and a chamfering groove which are perpendicular to each other are arranged on the lower die plate, blanking holes are formed in the lower die plate and the lower die base at the intersection positions of the shearing groove and the chamfering groove, a static cutter seat and a static cutting limiting seat are respectively arranged on the lower die plate on two sides of the shearing groove and the blanking holes, a through hole parallel to the chamfering groove is formed in the static cutter seat, an inlet pipe is inserted into one side, away from the blanking holes, of the side close to the blanking holes, and a static cutter is arranged on one side close to the blanking holes, and a through hole corresponding to the inlet pipe is formed in the static cutter. The straightened wire rod enters the static cutter from the feeding pipe, passes through the back end part of the static cutter and is propped against the static cutting limiting seat, the part protruding out of the static cutter is the part to be sheared at the moment, and the end part of the through hole is the cutting edge for shearing the protruding part.
The shearing groove is internally provided with a shearing sliding block, the front side of the shearing sliding block is connected with a movable cutter seat, one side of the movable cutter seat close to the static cutter is provided with a movable cutter, the bottom of the upper template is connected with a shearing wedge, the lower end of the shearing wedge penetrates through a shearing wedge hole of the shearing sliding block, the shearing wedge is provided with a shearing inclined section with the direction away from the blanking hole in a downward inclined manner, the shearing wedge hole is close to the upper part of the inner wall on one side of the blanking hole and the lower part of the inner wall on one side of the blanking hole is arranged as an inclined plane. When the upper die plate descends to drive the shearing wedge to descend, the shearing inclined section is contacted with the shearing wedge hole inclined plane close to one side of the blanking hole, the shearing sliding block is pushed to move towards one side of the blanking hole, the movable cutter seat and the movable cutter move simultaneously, the movable cutter and the static cutter are matched to complete shearing, when the upper die plate ascends to drive the shearing wedge to ascend, the shearing inclined section is contacted with the shearing wedge hole inclined plane far away from one side of the blanking hole, and the shearing sliding block, the movable cutter seat and the movable cutter are pushed to move and reset towards one side far away from the blanking hole. The shearing inclined section is longer in length, and can continuously push the sheared workpiece to continue moving after shearing is finished.
The inner side of the chamfering groove on the two sides of the blanking hole is respectively provided with a chamfering slide block, the chamfering slide block is provided with a chamfering female die towards one side of the blanking hole, the chamfering female die is provided with a chamfering conical surface towards one side of the blanking hole, the bottom of the upper die plate is connected with two chamfering wedges, the lower ends of the chamfering wedges penetrate through the chamfering wedge holes of the chamfering slide block, the chamfering wedges are provided with chamfering inclined sections with the directions being far away from the blanking hole obliquely downwards, and the lower portions of the inner walls, close to the upper portion of the inner wall on one side of the blanking hole and far away from one side of the blanking hole, of the chamfering wedges are arranged into inclined planes. When the upper die plate descends to drive the two chamfering wedges to descend, the chamfering inclined section is in inclined plane contact with the chamfering wedge hole close to one side of the blanking hole, the chamfering slide block and the chamfering female die are pushed to move towards the middle, chamfering is simultaneously carried out on two ends of a workpiece through two chamfering conical surfaces, after the chamfering is completed, the upper die plate ascends to drive the two chamfering wedges to ascend, the chamfering inclined section is in inclined plane contact with the chamfering wedge hole far away from one side of the blanking hole, the chamfering slide block and the chamfering female die are pushed to move towards two sides to reset, and the workpiece falls down from the blanking hole under the action of gravity after being separated from the chamfering conical surfaces.
Preferably, a chamfering positioning seat is fixed on the lower template, the chamfering positioning seat is positioned on one side of the blanking hole opposite to the movable cutter seat, and the lower part of one side facing the blanking hole is positioned between the chamfering female dies. The workpiece is pushed to abut against the chamfering positioning seat by the movable cutter seat and the movable cutter to form clamping and positioning for the workpiece, and the workpiece is prevented from being stressed and bent during chamfering.
Preferably, the side surface of the lower part of the chamfering positioning seat facing the blanking hole is provided with a circular arc-shaped positioning groove, and the central axis of the positioning groove is superposed with the central axis of the chamfering conical surface, so that a workpiece can be better clamped during chamfering.
Preferably, the bottom of the chamfer positioning seat above the blanking hole is provided with an elastic clamping block, the elastic clamping block is provided with a longitudinal clamping block strip-shaped hole and is erected and installed through a pin, and the top of the elastic clamping block is provided with a spring. When the workpiece moves to the chamfering station and reaches the chamfering station, the elastic clamping block always provides elastic clamping force for the workpiece, so that the workpiece can stably and controllably reach the chamfering station and complete chamfering.
Preferably, the shearing slide block is connected with the movable cutter seat through a hanging table structure, an axial gap is reserved between the shearing slide block and the movable cutter seat, and a disc spring is assembled between the shearing slide block and the movable cutter seat. After the workpiece reaches the chamfering station, the workpiece is elastically clamped through the elasticity of the disc spring, and the part is prevented from being damaged by clamping.
Preferably, the bottom of the elastic clamping block is provided with at least one groove, a stopping block is arranged in the groove, the stopping block is provided with a longitudinal block strip-shaped hole and is erected and installed through a pin, and an inclined plane is arranged at one side, facing the shearing sliding block, of the bottom of the stopping block. When the movable cutter seat and the movable cutter push a workpiece to move to a chamfering station, the workpiece is contacted with the inclined plane, the stopping stop block rises, after the workpiece passes through the inclined plane, the stopping stop block falls under the action of gravity or elastic force (a spring is added at the top), and when the movable cutter seat and the movable cutter return to reset, the stopping stop block blocks the workpiece to prevent the workpiece from returning to the shearing station, so that the workpiece is ensured to fall from a blanking hole.
Preferably, the side face, facing the blanking hole, of the lower portion of the chamfering positioning seat is provided with at least one hole perpendicular to the direction of the chamfering groove, an ejector rod is arranged in the hole, one end, facing the blanking hole, of the ejector rod protrudes out of the surface of the chamfering positioning seat, and an ejector rod spring is arranged at the other end of the ejector rod. When chamfering is carried out, the workpiece presses the ejector rod into the chamfering positioning seat, the ejector rod spring is compressed, after the chamfering movable cutter seat and the movable cutter return, the ejector rod ejects the workpiece out of the chamfering positioning seat under the action of the ejector rod spring, and the workpiece falls down smoothly.
As the preferred, static cutter blade mouth is respectively for static cutter's through hole both ends, after the blade wearing and tearing of one end, can continue to use the other end to transferring, is favorable to practicing thrift the cost. The two sides of the movable cutter seat are respectively provided with a movable cutter, one movable cutter is a spare cutter, and the two movable cutters can be exchanged for use after the movable cutters are worn. The two sides of the chamfering female die are respectively provided with chamfering conical surfaces, and the other end of the chamfering female die can be continuously used after the conical surfaces are abraded, so that cost is saved, and adaptability is improved.
Preferably, chamfers are arranged at two ends, far away from the shearing sliding block, of the static cutter, a semicircular positioning pin groove is formed in the middle of one side of the static cutter, a corresponding semicircular groove is formed in the static cutter seat, cutter positioning pins are arranged in the two grooves, the chamfers play a role in avoiding in the workpiece pushing process, and the cutter positioning pins are used for fixedly connecting the static cutter on the static cutter seat. Move the cutter and be equipped with convex recess towards one side in blanking hole, the tip of recess is for moving the cutter blade, and convex blade is convenient for cut and plays fine clamping action with the cooperation of chamfer positioning seat at the chamfer station.
Preferably, the lower template is respectively provided with a hole through which the lower ends of the shearing wedge and the chamfering wedge penetrate, and two sides of the hole close to and far away from the blanking hole are provided with roller pins. The roller supports the wedge in descending and ascending processes, working stress of the wedge is reduced, rolling friction is generated when the roller pin is in contact with the wedge, and compared with sliding friction of a common stop block, friction force can be reduced, and the sliding friction is beneficial to improving strength, rigidity and service life of the wedge.
Preferably, the top ends of the shearing wedge and the chamfering wedge are sleeved with wedge fixing seats, through holes are formed in the wedge fixing seats, and positioning pins are arranged in the through holes.
Preferably, one side of the static cutting limiting seat, which faces the static cutter, is provided with a limiting groove, and the bottom of the limiting groove is a 7-shaped smooth curved surface. When the movable cutter cuts off the workpiece to push materials, the end face of the workpiece slides along the curved surface of the limiting groove, so that the workpiece axially moves for a certain distance before entering a chamfering station, and enters the chamfering station at the correct axial position, and therefore symmetrical chamfering at two ends is achieved.
Preferably, the static cutting limiting seat is provided with an optical fiber sensor for detecting whether the wire is fed in place, and if the feeding length is insufficient, a signal is sent out, the feeding step pitch is readjusted, and the length and the size of the workpiece are guaranteed. The blanking sensor is arranged outside the blanking hole at the bottom of the lower die holder, the workpiece is detected and counted through the blanking sensor when falling, if the workpiece does not normally fall, the blanking sensor sends a signal, the equipment stops working, and the equipment continues to work after fault removal, so that the safety of the die and the equipment is protected.
Preferably, the gap delta between the cutting edges of the static cutter and the movable cutter is 0.02-0.1 times of the diameter of the pin shaft workpiece, the diameter d of the through hole of the static cutter is 1.02-1.1 times of the diameter of the pin shaft workpiece, so that a straightened wire rod can smoothly pass through the through hole of the static cutter without clamping stagnation, the radial clamping effect of the cutting edges on the shearing area of the workpiece is favorably realized during shearing, and the section quality of the shearing section is improved. The depth h of the limiting groove is twice of the chamfering width of the pin shaft workpiece, namely the workpiece is axially moved by the distance twice of the chamfering width before entering a chamfering station, so that the workpiece enters the chamfering station at the correct axial position, and the symmetrical chamfering at two ends is realized.
Preferably, the lower templates on one side or two sides of the shearing sliding block, the movable cutter seat and the chamfering sliding block are provided with sliding block pressing plates for restraining the vertical displacement of the shearing sliding block, the movable cutter seat and the chamfering sliding block. In addition, the side edges of the static cutting tool holder and the static cutting limiting holder can be designed to be of the same structure as the sliding block pressing plate, and the same vertical direction restraining and limiting effects can be achieved.
The invention has the beneficial effects that: the invention adopts the shearing, chamfering and blanking integrated die to process and produce the positioning pin products, and has the characteristics of short process flow, high processing efficiency, good product consistency, low cost and the like.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a longitudinal cross-sectional view (shear station) of the present invention;
FIG. 4 is a transverse cross-sectional view (shear station) of the present invention;
FIG. 5 is a longitudinal cross-sectional view of the present invention (chamfering station);
FIG. 6 is a transverse cross-sectional view of the present invention (chamfering station);
FIG. 7 is a partial schematic view of FIG. 3;
FIG. 8 is a partial schematic view of FIG. 4;
FIG. 9 is a partial perspective view of the present invention;
FIG. 10 is another partial perspective view of the present invention;
FIG. 11 is an exploded view of the resilient clamp block portion of the present invention;
FIG. 12 is a perspective view of the movable cutter of the present invention;
FIG. 13 is a cross-sectional view of a static cutter in accordance with the present invention;
FIG. 14 is a partial cross-sectional view of a static cut stop according to the present invention;
FIG. 15 is a cross-sectional view of the chamfer die of the present invention;
fig. 16 is a schematic diagram of an application of the present invention.
The main elements in the figures are symbolically illustrated: 100. shearing a chamfering die; 101. a blanking hole; 200. a wire rod; 201. a pin shaft workpiece; 300. an automatic feeding frame; 400. a straightening machine; 500. a feeding machine; 600. punching machine;
1. an upper die base plate; 2. mounting a template; 3. a guide post; 4. a lower die holder; 5. a lower template; 5.1, shearing a groove; 5.2, chamfering the groove; 6. a guide sleeve; 7. a static cutter seat; 8. a static cutting limiting seat; 8.1, limiting grooves; 9. a feed pipe; 10. a static cutter; 10.1, cutting edges of static cutting knives; 10.2, chamfering; 10.3, positioning pin grooves; 11. shearing a sliding block; 11.1, shearing wedge holes; 12. a movable cutter seat; 13. a movable cutter; 13.1, moving the cutting edge of the cutter; 14. shearing the wedge; 14.1, shearing the inclined section; 15. chamfering the sliding block; 15.1, chamfering the wedge hole; 16. chamfering the female die; 16.1, chamfering the conical surface; 17. chamfering the wedge; 17.1, chamfering the inclined section; 18. chamfering the positioning seat; 18.1, a positioning groove; 19. an elastic clamping block; 19.1, clamping block strip-shaped holes; 20. a spring; 21. a disc spring; 22. a backstop stop block; 22.1, block strip-shaped holes; 22.2, inclined plane; 23. a lifter bar; 24. a lifter spring; 25. a cutter positioning pin; 26. rolling needles; 27. a wedge fixing seat; 28. positioning pins; 29. an optical fiber sensor; 30. a blanking sensor; 31. and (5) pressing a sliding block.
Detailed Description
The invention will be further illustrated by the following description and the accompanying drawings.
The first embodiment is as follows: as shown in fig. 1-10 and fig. 15, the pin shearing and chamfering integrated die 100 is used for processing a wire 200 into a pin workpiece 201, and includes an upper die portion and a lower die portion, the upper die portion includes an upper die pad 1, an upper die plate 2 and a plurality of guide pillars 3 at the bottom of the upper die plate 2, the lower die portion includes a lower die holder 4, a lower die plate 5 and a plurality of guide sleeves 6 on the lower die plate 5, the lower die plate 5 is provided with a shearing groove 5.1 and a chamfering groove 5.2 which are perpendicular to each other, the lower die plate 5 and the lower die holder 4 at the intersection position of the shearing groove 5.1 and the chamfering groove 5.2 are provided with a blanking hole 101, the lower die plate 5 at the two sides of the shearing groove 5.1 and the blanking hole 101 is respectively provided with a static cutting knife holder 7 and a static cutting limiting holder 8, the static cutting knife holder 7 is provided with a through hole parallel to the chamfering groove 5.2, a feed pipe 9 is inserted into one side of the blanking hole far from the blanking hole 101, one side close to the blanking hole is provided with a static cutter 10, the static cutter 10 is provided with a through hole corresponding to the feeding pipe 9.
The shearing slider 11 is arranged in the shearing groove 5.1, the front side of the shearing slider 11 is connected with the movable cutter seat 12, one side, close to the static cutter 10, of the movable cutter seat 12 is provided with the movable cutter 13, the bottom of the upper template 2 is connected with the shearing wedge 14, the lower end of the shearing wedge 14 penetrates through a shearing wedge hole 11.1 of the shearing slider 11, the shearing wedge 14 is provided with a shearing inclined section 14.1 which is oriented to be far away from the blanking hole 101 in a downward inclined mode, and the upper portion of the inner wall, close to one side of the blanking hole 101, of the shearing wedge hole 11.1 and the lower portion of the inner wall, far away from one side of the blanking hole 101, of the shearing wedge hole 11.1 are arranged to be inclined planes. Wherein, shearing slider 11 and move cutter holder 12 and pass through a string platform structural connection, leave axial clearance between the two and be equipped with dish spring 21 between them.
The inner portions of the chamfering grooves 5.2 on two sides of the blanking hole 101 are respectively provided with a chamfering slide block 15, a chamfering female die 16 is installed on one side, facing the blanking hole 101, of the chamfering slide block 15, a chamfering conical surface 16.1 is formed on one side, facing the blanking hole 101, of the chamfering female die 16, the bottom of the upper die plate 2 is connected with two chamfering wedges 17, the lower ends of the chamfering wedges 17 penetrate through chamfering wedge holes 15.1 of the chamfering slide blocks 15, chamfering inclined sections 17.1 which are oriented to be far away from the blanking hole 101 in a downward inclined mode are arranged on the chamfering wedges 17, and the lower portions of the inner walls, close to the upper portion of the inner wall on one side of the blanking hole 101 and far away from the blanking hole 101, of the chamfering wedges 15.1 are set to be inclined planes.
The top ends of the shearing tapered wedge 14 and the chamfering tapered wedge 17 are sleeved with tapered wedge fixing seats 27, through holes are formed in the cutting tapered wedge and the chamfering tapered wedge, positioning pins 28 are arranged in the holes, and sliding block pressing plates 31 are arranged on the lower templates 5 on one side or two sides of the shearing sliding block 11, the movable cutter seat 12 and the chamfering sliding block 15. In addition, the static cutting limiting seat 8 is provided with an optical fiber sensor 29, and the bottom of the lower die seat 4 is provided with a blanking sensor 30 outside the blanking hole 101.
As shown in fig. 3-4, 6 and 10, the lower die plate 5 is fixed with a chamfering positioning seat 18, the chamfering positioning seat 18 is located on the side of the blanking hole 101 opposite to the movable cutter seat 12, and the lower part of the side facing the blanking hole 101 is located between the chamfering female dies 16. The side surface of the lower part of the chamfering positioning seat 18 facing the blanking hole 101 is provided with a circular arc-shaped positioning groove 18.1, and the central axis of the positioning groove 18.1 is superposed with the central axis of the chamfering conical surface 16.1. The side face of the lower part of the chamfering positioning seat 18 facing the blanking hole 101 is provided with at least one hole vertical to the direction of the chamfering groove 5.2, an ejector rod 23 is arranged in the hole, one end of the ejector rod 23 facing the blanking hole 101 protrudes out of the surface of the chamfering positioning seat 18, and the other end of the ejector rod is provided with an ejector rod spring 24.
Referring to fig. 3, 10 and 11, an elastic clamping block 19 is arranged at the bottom of the chamfer positioning seat 18 above the blanking hole 101, a longitudinal clamping block strip-shaped hole 19.1 is formed in the elastic clamping block 19 and is erected and installed through a pin, and a spring 20 is arranged at the top of the elastic clamping block 19. At least one groove is formed in the bottom of the elastic clamping block 19, a stopping block 22 is arranged in the groove, a longitudinal block strip-shaped hole 22.1 is formed in the stopping block 22 and is erected and installed through a pin, and an inclined surface 22.2 is formed in the bottom of the stopping block 22, and faces one side of the shearing sliding block 11.
Referring to fig. 8 and 13, the two ends of the through hole of the static cutter 10 are respectively provided with a static cutter edge opening 10.1, the two ends of the static cutter 10 far away from the shearing slider 11 are provided with chamfers 10.2, the middle of one side of the static cutter 10 is provided with a semicircular positioning pin slot 10.3, the static cutter holder 7 is provided with a corresponding semicircular slot, and the two slots are provided with cutter positioning pins 25. Referring to fig. 8 and 12, the movable cutters 13 are respectively disposed on two sides of the movable cutter holder 12, a circular arc-shaped groove is disposed on one side of the movable cutter 13 facing the blanking hole 101, and a movable cutter edge 13.1 is disposed at an end of the groove. As shown in fig. 15, the chamfering die 16 has chamfering tapers 16.1 on both sides thereof.
Referring to fig. 3 and 5, the lower template 5 is provided with holes through which the lower ends of the shearing wedge 14 and the chamfering wedge 17 pass, and two sides of the holes close to and far away from the blanking hole 101 are provided with roller pins 26.
Referring to fig. 14, a limiting groove 8.1 is formed in one side of the static cutting limiting seat 8 facing the static cutter 10, and the bottom of the limiting groove 8.1 is a 7-shaped smooth curved surface.
In the embodiment, the cutting edge gap δ of the static cutter 10 and the movable cutter 13 is 0.02-0.1 times of the diameter of the pin shaft workpiece 201, the diameter d of the through hole of the static cutter 10 is 1.02-1.1 times of the diameter of the pin shaft workpiece 201, and the depth h of the limiting groove 8.1 is twice of the chamfering width of the pin shaft workpiece 201.
The working process is as follows:
1. feeding: the wire 200 enters the static cutter 10 through the feeding pipe 9, the end part of the wire 200 penetrates through the static cutter 10 and abuts against the deepest part of the limiting groove 8.1 of the static cutting limiting seat 8, the elastic clamping block 19 elastically clamps the wire 200, the wire 200 is positioned at a shearing station at the moment, and the optical fiber sensor 29 detects whether the wire 200 is fed in place.
2. Shearing: when the upper template 2 descends to drive the shearing tapered wedges 14 and the two chamfering tapered wedges 17 to descend, the shearing inclined sections 14.1 are in inclined surface contact with the shearing tapered wedge holes 11.1 close to one sides of the blanking holes 101, the shearing sliding blocks 11 are pushed to move towards one sides of the blanking holes 101, the movable cutter seats 12 and the movable cutters 13 move simultaneously, and the movable cutters 13 are matched with the static cutters 10 to complete shearing of a section of pin shaft workpieces 201. The chamfer wedge 17 is not operated at this stage.
3. Pushing: the shearing wedge 14 continues to descend, the cut pin shaft workpiece 201 moves to the chamfering station, in the process, the elastic clamping block 19 elastically clamps the pin shaft workpiece 201 all the time, and the end face slides along the curved surface of the limiting groove 8.1, so that the pin shaft workpiece 201 axially moves for a certain distance. The pin shaft workpiece 201 contacts with the inclined plane 22.2 of the backstop stopper 22, the backstop stopper 22 rises, after the backstop stopper 22 falls under the action of gravity or elastic force, and after the pin shaft workpiece 201 reaches the chamfering station, the pin shaft workpiece 201 abuts against the positioning groove 18.1 of the chamfering positioning seat 18, and the pin shaft workpiece 201 is elastically clamped under the elastic force of the spring 20 and the disc spring 21. The pin shaft workpiece 201 presses the ejector pin 23 into the chamfer positioning seat 18, and the ejector pin spring 24 is compressed. The chamfer wedge 17 is not operated at this stage.
4. Chamfering: the upper die plate 2 continues to descend, the position of the shearing slide block 11 is not changed by the shearing wedges 14 at the stage, the chamfer inclined sections 17.1 of the two chamfer inclined wedges 17 are in inclined surface contact with the chamfer inclined wedge holes 15.1 close to one side of the blanking hole 101, the chamfer slide blocks 15 and the chamfer concave dies 16 are pushed to move towards the middle, and the two ends of the pin shaft workpiece 201 are chamfered simultaneously through the two chamfer conical surfaces 16.1.
5. Blanking: the upper template 2 ascends to drive the shearing tapered wedge 14 and the chamfering tapered wedge 17 to ascend, firstly, a chamfering inclined section 17.1 of the chamfering tapered wedge 17 is in inclined surface contact with a chamfering tapered wedge hole 15.1 on one side far away from the blanking hole 101 to push the chamfering slide block 15 and the chamfering female die 16 to move towards two sides, the pin shaft workpiece 201 is separated from a chamfering conical surface 16.1, then, the shearing inclined section 14.1 of the shearing tapered wedge 14 is in inclined surface contact with a shearing tapered wedge hole 11.1 on one side far away from the blanking hole 101 to push the shearing slide block 11, the movable cutter seat 12 and the movable cutter 13 to move towards one side far away from the blanking hole 101, under the action of an ejector rod spring 24, an ejector rod 23 ejects the pin shaft workpiece 201 out of a chamfering positioning seat 18, a stopping stop block 22 stops the pin shaft workpiece 201 from returning to a shearing station, the pin shaft workpiece 201 falls down from the blanking hole 101, and detection and counting are carried out through a blanking sensor 30. After the upper die plate 2 reaches the initial position, all the parts of the shearing and chamfering die 100 are reset to prepare for the next process.
Example two: referring to fig. 16, in an application of the cutting and chamfering die 100 according to the first embodiment, an automatic feeding frame 300, a straightening machine 400, a feeding machine 500, and a punching machine 600 are sequentially arranged according to a production layout, the cutting and chamfering die 100 is mounted on the punching machine 600, a coil stock of a wire 200 is placed on the automatic feeding frame 300, the wire 200 is straightened by the straightening machine 400 and then fed into the cutting and chamfering die 100 on the punching machine 600 through the feeding machine 500, and the punching machine 600 drives the cutting and chamfering die 100 to cut and chamfer the wire 200 to form a pin workpiece 201.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and the present invention can be applied to similar products, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (10)
1. Chamfer integral type mould is cuted to round pin axle, cuts chamfer mould (100) and is used for processing into round pin axle work piece (201) with wire rod (200), including last mould part and lower mould part, go up mould part and include a plurality of guide pillar (3) of upper die plate (1), cope match-plate pattern (2) and cope match-plate pattern (2) bottom, and lower mould part includes a plurality of guide pin bushing (6) on die holder (4), lower bolster (5) and lower bolster (5), its characterized in that: the lower template (5) is provided with a shearing groove (5.1) and a chamfering groove (5.2) which are perpendicular to each other, blanking holes (101) are formed in the lower template (5) and the lower die base (4) at the intersection positions of the shearing groove (5.1) and the chamfering groove (5.2), a static cutting tool holder (7) and a static cutting limiting seat (8) are respectively arranged on the lower template (5) at two sides of the shearing groove (5.1) and the blanking holes (101), a through hole parallel to the chamfering groove (5.2) is formed in the static cutting tool holder (7), a feeding pipe (9) is inserted into one side of the hole far away from the blanking holes (101), a static cutting tool (10) is arranged at one side close to the blanking holes (101), and the static cutting tool (10) is provided with a through hole corresponding to the feeding pipe (9);
a shearing sliding block (11) is arranged in the shearing groove (5.1), the front side of the shearing sliding block (11) is connected with a movable cutter seat (12), one side, close to the static cutter (10), of the movable cutter seat (12) is provided with a movable cutter (13), the bottom of the upper template (2) is connected with a shearing wedge (14), the lower end of the shearing wedge (14) penetrates through a shearing wedge hole (11.1) of the shearing sliding block (11), the shearing wedge (14) is provided with a shearing inclined section (14.1) which is in a direction away from the blanking hole (101) and inclines downwards, and the upper part of the inner wall, close to one side of the blanking hole (101), of the shearing wedge hole (11.1) and the lower part of the inner wall, away from one side of the blanking hole (101) of the shearing wedge hole are set as inclined planes;
chamfering sliding blocks (15) are respectively arranged in chamfering grooves (5.2) on two sides of the blanking hole (101), a chamfering female die (16) is installed on one side, facing the blanking hole (101), of each chamfering sliding block (15), a chamfering conical surface (16.1) is formed on one side, facing the blanking hole (101), of each chamfering female die (16), two chamfering wedges (17) are connected to the bottom of the upper die plate (2), the lower ends of the chamfering wedges (17) penetrate through chamfering wedge holes (15.1) of the chamfering sliding blocks (15), chamfering inclined sections (17.1) which are downward in the direction far away from the blanking hole (101) are arranged on the chamfering wedges (17), and inclined planes are arranged on the upper portion of the inner wall, close to one side of the blanking hole (101), of each chamfering wedge hole (15.1) and the lower portion of the inner wall, far away from one side of the blanking hole (101);
a chamfering positioning seat (18) is fixed on the lower template (5), the chamfering positioning seat (18) is positioned on one side of the blanking hole (101) opposite to the movable cutter seat (12), and the lower part of one side facing the blanking hole (101) is positioned between chamfering female dies (16);
the bottom of the chamfer positioning seat (18) above the blanking hole (101) is provided with an elastic clamping block (19), the elastic clamping block (19) is provided with a longitudinal clamping block strip-shaped hole (19.1) and is erected and installed through a pin, and the top of the elastic clamping block (19) is provided with a spring (20).
2. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: the side surface of the lower part of the chamfering positioning seat (18) facing the blanking hole (101) is provided with a circular arc positioning groove (18.1), and the central axis of the positioning groove (18.1) is superposed with the central axis of the chamfering conical surface (16.1);
the side face of the lower portion, facing the blanking hole (101), of the chamfering positioning seat (18) is provided with at least one hole perpendicular to the direction of the chamfering groove (5.2), a material ejecting rod (23) is arranged in the hole, one end, facing the blanking hole (101), of the material ejecting rod (23) protrudes out of the surface of the chamfering positioning seat (18), and the other end of the material ejecting rod is provided with a material ejecting rod spring (24).
3. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: the shearing sliding block (11) is connected with the movable cutter seat (12) through a hanging table structure, an axial gap is reserved between the shearing sliding block and the movable cutter seat, and a disc spring (21) is arranged between the shearing sliding block and the movable cutter seat.
4. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: at least one groove is formed in the bottom of the elastic clamping block (19), a stopping block (22) is arranged in the groove, a longitudinal block strip-shaped hole (22.1) is formed in the stopping block (22), the stopping block is erected and installed through a pin, and an inclined plane (22.2) is formed in one side, facing the shearing sliding block (11), of the bottom of the stopping block (22).
5. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: two ends of a through hole of the static cutter (10) are respectively provided with a static cutter cutting edge (10.1), two sides of the movable cutter seat (12) are respectively provided with a movable cutter (13), and two sides of the chamfering female die (16) are respectively provided with a chamfering conical surface (16.1).
6. The integrated die for shearing and chamfering the pin shaft according to claim 5, characterized in that: the novel shearing mechanism is characterized in that chamfers (10.2) are arranged at two ends of one side, far away from the shearing sliding block (11), of the static cutter (10), a semicircular positioning pin groove (10.3) is formed in the middle of one side of the static cutter, a corresponding semicircular groove is formed in the static cutter holder (7), cutter positioning pins (25) are arranged in the two grooves, a circular arc-shaped groove is formed in one side, facing the blanking hole (101), of the movable cutter (13), and a movable cutter cutting edge (13.1) is arranged at the end part of the groove.
7. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: and holes for the lower ends of the shearing wedge (14) and the chamfering wedge (17) to penetrate are respectively formed in the lower template (5), and rolling needles (26) are arranged on two sides of the holes close to and far away from the blanking hole (101).
8. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: the top ends of the shearing wedge (14) and the chamfering wedge (17) are sleeved with a wedge fixing seat (27) and are provided with through holes, and positioning pins (28) are arranged in the through holes;
an optical fiber sensor (29) is mounted on the static cutting limiting seat (8), and a blanking sensor (30) is arranged at the bottom of the lower die seat (4) and positioned outside the blanking hole (101);
and a sliding block pressing plate (31) is arranged on the lower template (5) at one side or two sides of the shearing sliding block (11), the movable cutter seat (12) and the chamfering sliding block (15).
9. The integrated die for shearing and chamfering the pin shaft according to claim 1, characterized in that: one side of the static cutting limiting seat (8) facing the static cutter (10) is provided with a limiting groove (8.1), and the bottom surface of the limiting groove (8.1) is a 7-shaped smooth curved surface.
10. The integrated die for shearing and chamfering the pin shaft according to claim 9, characterized in that: the cutting edge clearance delta of the static cutter (10) and the movable cutter (13) is 0.02-0.1 time of the diameter of the pin shaft workpiece (201), the diameter d of a through hole of the static cutter (10) is 1.02-1.1 times of the diameter of the pin shaft workpiece (201), and the depth h of the limiting groove (8.1) is twice of the chamfering width of the pin shaft workpiece (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561099.4A CN112846006B (en) | 2020-12-25 | 2020-12-25 | Round pin axle is cuted chamfer integral type mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561099.4A CN112846006B (en) | 2020-12-25 | 2020-12-25 | Round pin axle is cuted chamfer integral type mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112846006A CN112846006A (en) | 2021-05-28 |
| CN112846006B true CN112846006B (en) | 2022-08-30 |
Family
ID=75996962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561099.4A Active CN112846006B (en) | 2020-12-25 | 2020-12-25 | Round pin axle is cuted chamfer integral type mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112846006B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008213000A (en) * | 2007-03-06 | 2008-09-18 | Aida Eng Ltd | Press machine |
| CN103317024A (en) * | 2013-06-27 | 2013-09-25 | 衡阳财经工业职业技术学院 | Punching compound die |
| CN208357576U (en) * | 2018-04-14 | 2019-01-11 | 江阴创博机械制造有限公司 | A kind of interior outside chamfer mould of shaped piece shearing |
| CN110125236A (en) * | 2019-05-28 | 2019-08-16 | 芜湖众力底盘系统有限公司 | A kind of side blow isocentric circular arc mold of automotive seat end socket of pipe fitting |
| CN211638104U (en) * | 2019-12-10 | 2020-10-09 | 东莞市瑞成精密模具有限公司 | Stamping die of three-dimensional different-direction broken line |
-
2020
- 2020-12-25 CN CN202011561099.4A patent/CN112846006B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008213000A (en) * | 2007-03-06 | 2008-09-18 | Aida Eng Ltd | Press machine |
| CN103317024A (en) * | 2013-06-27 | 2013-09-25 | 衡阳财经工业职业技术学院 | Punching compound die |
| CN208357576U (en) * | 2018-04-14 | 2019-01-11 | 江阴创博机械制造有限公司 | A kind of interior outside chamfer mould of shaped piece shearing |
| CN110125236A (en) * | 2019-05-28 | 2019-08-16 | 芜湖众力底盘系统有限公司 | A kind of side blow isocentric circular arc mold of automotive seat end socket of pipe fitting |
| CN211638104U (en) * | 2019-12-10 | 2020-10-09 | 东莞市瑞成精密模具有限公司 | Stamping die of three-dimensional different-direction broken line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112846006A (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0484588B1 (en) | Die including slide cam | |
| CN106140966A (en) | Condenser brackets precision progressive die | |
| CN103736856A (en) | Precise progressive die of left rear towing hook fixing plate | |
| JP4464604B2 (en) | Pipe drilling device and method for manufacturing drilled pipe | |
| US3590674A (en) | Restrained shearing method of bar material | |
| CN112846006B (en) | Round pin axle is cuted chamfer integral type mould | |
| CN214133768U (en) | Round pin axle is cuted chamfer integral type mould | |
| CN112207193B (en) | Continuous machining forming die for conical check ring | |
| CN212822121U (en) | Double-station side punching die | |
| CN112170696B (en) | Stamping forming die for automobile seat side plate waist support bracket | |
| CN110314982A (en) | A kind of electric switch contact chip multistation progressive die | |
| CN110434227A (en) | A kind of electric switch contact Nesting | |
| CN214488496U (en) | Progressive die stamping device for E-shaped silicon steel sheet | |
| CN112207202B (en) | Upsetting-extruding forming method for conical check ring | |
| JPH0538531A (en) | Press die | |
| CN114799571A (en) | Laser pipe cutting machine with feeding positioning device and feeding method | |
| JP2000317544A (en) | Method and device for press working | |
| CN212469471U (en) | Negative clearance stamping die | |
| CN213317103U (en) | General type shearing die | |
| CN218591595U (en) | Progressive die of outdoor portable card knife | |
| CN217890082U (en) | Continuous stamping die of pin protection shell fragment | |
| CN220028361U (en) | Automatic punching device for grooving of shaft workpieces | |
| JPH11347860A (en) | Cutting and punching synchronous machining device and method | |
| CN220739206U (en) | Semi-shearing continuous stamping processing die without knife-connecting notch | |
| CN217617299U (en) | Die capable of detecting position of stamping part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |