CN107999632B - punching machine - Google Patents
punching machine Download PDFInfo
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- CN107999632B CN107999632B CN201711498019.3A CN201711498019A CN107999632B CN 107999632 B CN107999632 B CN 107999632B CN 201711498019 A CN201711498019 A CN 201711498019A CN 107999632 B CN107999632 B CN 107999632B
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- groove
- spring
- angle
- template
- chamfer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a punching machine, which comprises a steel pipe rolling device and a steel plate bending mechanism which are arranged side by side; the center of the base of the steel pipe coiling package is provided with a stepped groove, and the stepped groove comprises a first groove, a second groove and a third groove; the left lower corner of the left pressing module and the right lower corner of the right pressing module are respectively hinged to the side wall of the first groove; the bottom of the third groove is fixedly connected with the bottom end of the second spring, and the top end of the second spring is connected with the ejector rod. The center of the seat board of the steel plate bending mechanism is vertically provided with a blind hole, the bottom of the blind hole is provided with a spring, the bottom end of the spring is fixed at the bottom of the blind hole, two sides of the ejector rod are respectively provided with a bracket, the bracket comprises a right-angle block and a flat backboard, a template is further hinged in the right-angle opening, one end of the template is hinged on the backboard, the hinge shaft is perpendicular to the backboard, and two chamfers at the edge of the upper surface of the other end are spliced into a V-shaped die cavity. The invention has high molding efficiency, good molding quality, simple and smart structure and is beneficial to popularization and use.
Description
Technical Field
The invention belongs to the technical field of steel processing, and particularly relates to stamping forming of a steel pipe.
Background
The steel pipe is widely applied to various steel structure projects as a structural part, the existing special-shaped steel part is composed of a circular pipe section 301a and an angle steel section 302a as shown in fig. 1, the circular pipe section 301a and the angle steel section 302a are usually processed respectively in the existing manufacturing, then welded and fixed into a whole, the operation is complex, the efficiency is low, the position precision between the circular pipe section 301a and the angle steel section 302a is not easily guaranteed, the phenomenon of over-poor is too serious, and due to economic cost consideration, the circular pipe section 301a and the angle steel section 302a can not obtain reliable quality, so that the special-shaped steel part is unqualified, the reasons are that at present, various modes such as casting, turning forming and the like are available for manufacturing the steel pipe, but the forming efficiency is low, the existing cold rolling technology and equipment quality are uneven for cold-rolled steel pipes, the forming is quick, the equipment with good forming quality is often expensive, the structure is complex, the improvement of the forming processing quality of the circular pipe section 301a is difficult to popularize and use, the special bending equipment on the steel plate is limited to form an included angle steel material, the existing bending structure is not suitable for carrying out the rapid separation of the angle steel, the forming is poor, the forming quality is only poor, the quality of the special bending equipment is required to be used for carrying out the press forming and the special-shaped steel part is poor, the quality is only poor in quality is required to be subjected to the forming and the large-shaped and the quality is easy to be used to be formed to be poor, and poor in quality and formed.
Disclosure of Invention
The invention aims to provide a punching machine which has high forming efficiency, good forming quality, simple and ingenious structure and is beneficial to popularization and use.
The technical scheme of the invention is as follows:
a punching machine comprises a steel pipe rolling device and a steel plate bending mechanism which are arranged side by side;
the steel pipe rolling device comprises a base, wherein a stepped groove is formed in the center of the base along the vertical direction of the base, a first groove, a second groove and a third groove which are isosceles trapezoid are sequentially formed in the opening direction of the stepped groove towards the bottom of the stepped groove, the large end of the first groove faces upwards, and the small end of the first groove is connected with the second groove;
two pressing modules which are not connected with each other are symmetrically arranged in the first groove in a left-right mode, and the left lower corner of the left pressing module and the right lower corner of the right pressing module are hinged to corresponding positions of the front side wall and the rear side wall of the first groove, so that the two pressing modules can freely rotate in the first groove for a certain angle; the lower end edge of the side surface of the two pressing modules, which faces to one side of the corresponding waist wall of the first groove, is provided with a first chamfer, the middle part of the side surface, which faces away from the waist wall, is provided with an arc notch, the upper end edge of the side surface is provided with a chamfer, and the chamfer is connected with the arc notch in an arc transition way; the two pressing modules are respectively pulled to be attached to the corresponding waist wall by the first springs fixed in the waist walls at the two sides of the first groove, so that a gap formed between the sides of the two pressing modules where the bevels are positioned is enough to accommodate the vertical passing of the rolled steel pipe;
the bottom of the third groove is fixedly connected with the bottom end of the second spring, the top end of the second spring is connected with a push rod extending into the bottom of the third groove, the push rod does not completely slide out of the third groove under the natural length of the second spring, so that in a non-working state, the push rod passes through the base plate and then pushes the two pressing modules to the positions respectively attached to the corresponding waist walls of the first groove, and in a working state, when the bottom end surfaces of the two pressing modules are both rotated onto the top surface of the base plate, the two circular arc gaps are combined into a circular die cavity;
the steel plate bending mechanism comprises a seat plate, a blind hole is vertically formed in the center of the seat plate, a spring is arranged at the bottom of the blind hole, the bottom end of the spring is fixed at the bottom of the blind hole, the top end of the spring is connected with the bottom of a push rod extending into the blind hole, and the push rod does not completely slide out of the blind hole when the spring is in a natural length; the two sides of the ejector rod are respectively and symmetrically provided with a bracket, the bracket comprises two parts of a right-angle block and a platy backboard, wherein the right-angle block is of a right-angle steel structure with a right-angle cross section, one end of the right-angle block is integrally provided with traitors for plugging the end, the side plate of one right-angle side of the right-angle block is vertically fixed on the top surface of the seat plate, the right-angle opening side of the right-angle block is arranged towards one side of the ejector rod, a template is hinged in the right-angle opening, one end of the template is hinged on the backboard, a hinge shaft is perpendicular to the backboard, the edge of the upper surface of the other end of the template is provided with a chamfer, and when the two templates positioned at the left side and the right side are both rotated to the top surface of the seat plate, the two chamfers are spliced into a V-shaped die cavity; the upper surface of each template is connected with a tension spring, and the tension springs respectively pull the two templates to a position separated from the top surface of the seat plate in a non-stamping state;
the circular die cavity of the steel pipe rolling device is opposite to and communicated with the V-shaped die cavity of the steel plate bending mechanism, the lowest point of the circular die cavity and the vertex of an included angle of the V-shaped die cavity are positioned on the same horizontal line, and the angular bisector of the V-shaped die cavity is perpendicularly intersected with the axis of the circular die cavity.
Further, the first spring is horizontally disposed.
Further, the minimum horizontal gap between the two die modules is located below the two circular arc gaps, and the ratio of the minimum horizontal gap to the diameter of the circular die cavity is 3:20.
Further, the ratio of the included angle between the two waist walls of the first groove to the included angle formed by the face of the chamfer angle of the two pressing modules is 3:10.
Further, the rounded corners at the joint of the first groove and the second groove are processed, the circle center of the rounded corners is located on the axis of the hinge shaft when the two pressing modules are hinged to the front side wall and the rear side wall of the first groove, and the rounded corners can be inscribed with the rounded corners in the rotation process.
Further, semicircular notches are respectively arranged on the left side wall and the right side wall of the base.
Further, the bottom edge of the chamfer surface of each template is hinged with a base plate, and the base plate can fully cover the chamfer surface when rotating on the chamfer surface around the hinge shaft at the bottom end of the base plate; a worm is horizontally arranged in the template, the worm can freely rotate in the template, and one end of the worm extends out of the chamfer surface; the cavity at the upper part of the template is internally provided with a rotatable worm wheel meshed with the worm, and the front side of the template is also provided with a fastening device for controlling the worm wheel to rotate.
Further, cylindrical flanges on two end faces of the worm wheel are respectively rotatably positioned on two opposite side walls of the cavity, the fastening device is a bolt, the bolt can extend into the cavity from the outer side and be screwed into one flange to prevent the worm wheel from rotating, holes coaxial with each other are respectively formed in the other flange and the side wall of the cavity opposite to the flange, wherein a first hole on the cavity is a through hole for a hexagonal wrench to pass through, and a second hole on the flange is a hexagonal hole capable of being matched with the hexagonal wrench.
Further, one end of the worm extending out of the chamfer surface is provided with a hardened alloy steel ball, and the steel ball can completely enter a counter bore on the chamfer surface. The tension spring is vertically arranged. The cross section of the base plate is triangular, and when the base plate is completely attached to the chamfer surface, the surface of one side of the base plate is flush with the upper surface of the template.
Further, the worm wheel is replaced by a circular thread collar, the worm is replaced by a screw rod, the thread collar is screwed on the screw rod, cylindrical first flanges on two end faces of the thread collar are respectively and rotatably positioned on two opposite side walls of the cavity, the fastening device is a bolt, the bolt can extend into the cavity from the outer side and be screwed into one of the first flanges to prevent the thread collar from rotating, holes coaxial with each other are respectively formed in the other first flange and the side wall of the cavity opposite to the other first flange, wherein the first hole positioned on the cavity is a through hole for a hexagonal wrench to pass through, and the second hole positioned on the first flange is a hexagonal hole capable of being matched with the hexagonal wrench.
The invention has the beneficial effects that: according to the invention, the steel pipe rolling device and the steel plate bending mechanism which are arranged side by side are respectively used for stamping forming of the steel pipe part and the angle steel part, the two stamping tools are organically combined into a whole, one-time stamping forming of the special-shaped steel piece is realized, the delay time of separate stamping in a separate process is avoided, meanwhile, the two sets of die tools are simultaneously combined for use, the error caused by repeated clamping of the workpiece is avoided, the position precision of the round pipe part and the angle steel part is improved, and the forming efficiency of the steel piece is greatly improved.
When the steel pipe rolling device is used, in an initial state, the two die plates of the steel pipe rolling device are pulled to a position which is wanted to be attached to the waist wall of the first groove by the corresponding first springs, a gap at the upper end between the two die plates is enlarged, the die core and the plate enter smoothly, when the die core continuously punches the plate downwards, the plate gradually bends in an arc shape and enters the die cavity between the two die plates completely, when the lower end surfaces of the die plates are placed on the upper surface of the base plate, the respective arc gaps of the two die plates are combined into a required steel pipe forming die cavity, the die core punches the plate into a steel pipe shape at the moment, then the die core is retracted upwards, the ejector rod assists the first springs to push the two die plates upwards together under the reset action of the second springs, so that the opening at the upper ends of the two die plates is opened and enlarged, and the steel pipe and the die core leave and are separated in a demoulding mode. Therefore, the stamping machine is gradually formed, stable in forming quality, high in automatic demolding efficiency, simple, compact and ingenious in structure, easy to manufacture and beneficial to popularization and use. The steel plate bending mechanism enables the plate to move downwards gradually along with the two templates during operation, gradually bends and forms, gradually bends and automatically demolds, the forming quality is good, the efficiency is extremely high, the bending included angle can be adjusted, and the adaptability is stronger.
Therefore, the punching machine provided by the invention has the advantages of high forming efficiency, good forming quality, simple and ingenious structure and contribution to popularization and use.
Drawings
Fig. 1 is a schematic view of a special-shaped steel member.
Fig. 2 is a schematic structural view of a blank of profiled steel sheet.
Fig. 3 is a schematic view of the structure of the press machine before pressing.
Fig. 4 is a schematic view of the structure of the press machine at the time of press forming.
Fig. 5 is a schematic view of the structure of the steel pipe leaving device after the press forming by the press machine is completed.
Fig. 6 is a schematic structural view of the base.
Fig. 7 is an enlarged view of fig. 4 at I.
Fig. 8 is a schematic view of the structure of the steel plate bending mechanism before the start of punching.
Fig. 9 is a schematic structural view of the steel plate bending mechanism in the press forming process.
Fig. 10 is a sectional view a-a in fig. 9.
Fig. 11 is a schematic view of the arrangement structure of the backing plate and the worm gear.
Fig. 12 is a schematic view of a fastening device structure of the worm wheel.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
a punching machine comprises a steel pipe rolling device and a steel plate bending mechanism, wherein the steel pipe rolling device is used for manufacturing a steel pipe part, the steel plate bending mechanism is used for manufacturing an angle steel part, therefore, a plate blank shown in fig. 2 needs to be prepared in advance, a first plate 301 is correspondingly punched into a circular pipe section 301a, and a second plate 302 is correspondingly punched into an angle steel section 302a. In order to clearly show the structures of the steel pipe rolling device and the steel plate bending mechanism in a gradation manner, the drawings of the present embodiment do not show the entire assembly drawing of the press machine, but are explained in the form of separate structures of the steel pipe rolling device and the steel plate bending mechanism.
Referring to fig. 3 to 6, the steel pipe rolling device comprises a base 17, wherein a stepped groove is arranged at the center of the base 17 along the vertical direction, the stepped groove sequentially comprises a first groove 1701, a second groove 1702 and a third groove 1703 which are isosceles trapezoid-shaped from the opening direction to the bottom of the stepped groove, the large end of the first groove 1701 faces upwards, and the small end of the first groove 1701 is connected with the second groove 1702.
The first recess 1701 is internally and bilaterally symmetrically provided with two press modules 18 which are not connected with each other, and the lower left corner of the left press module and the lower right corner of the right press module are hinged at corresponding positions on the front and rear side walls of the first recess 1701, so that the two press modules 18 can freely rotate in a vertical plane within the first recess 1701 by a certain angle. The lower end edge of the side surface of the two pressing modules 18, which faces to the corresponding waist wall a side of the first groove 1701, is provided with a first rounding angle b, the middle part of the side surface, which faces away from the waist wall a side, is provided with an arc notch 1801, the upper end edge of the side surface is provided with a chamfering angle 1802, and the chamfering angle 1802 is in arc transition connection with the arc notch 1801. The two press modules 18 are pulled into engagement with the respective waist wall a by the first springs 20 secured within the respective waist walls a of the first recess 1701 such that the gap D formed between the sides of the chamfer 1802 of the two press modules 18 is sufficient to accommodate the vertical passage of the coiled steel pipe.
The second groove 1702 is horizontally provided with a pad 21, the bottom of the third groove 1703 is fixedly connected with the bottom of the second spring 23, the top of the second spring 23 is connected with a push rod 22 extending into the bottom of the third groove 1703, and the push rod 22 does not completely slide out of the third groove 1703 under the natural length of the second spring 23, so that in the non-working state, the push rod 22 pushes the two pressing modules 18 to the positions respectively attached to the corresponding waist wall a of the first groove 1701 after passing through the pad 21, and in the working state, when the bottom end faces of the two pressing modules 18 are both rotated onto the top face of the pad 21, the two circular arc notches 1801 are combined into a circular mold cavity for final molding of the steel pipe.
Referring to fig. 8-10, the steel plate bending mechanism comprises a seat plate 7, a blind hole is vertically arranged in the center of the seat plate 7, a spring 9 is arranged at the bottom of the blind hole, the bottom end of the spring 9 is fixed at the bottom of the blind hole, the top end of the spring is connected with the bottom of a push rod 8 extending into the blind hole, and the push rod 8 does not completely slide out of the blind hole when the spring 9 is in a natural length. The two sides of the ejector rod 8 are respectively provided with a bracket 1 in bilateral symmetry, and the bracket 1 comprises a right-angle block 101 and a flat backboard 102. The right-angle block 101 is of an angle steel-shaped structure with a right-angle cross section, one end of the right-angle block 101 is integrally provided with the traitor 102 for blocking the end, a side plate where one right-angle side of the right-angle block 101 is located is vertically fixed on the top surface of the seat plate 7, a right-angle opening side of the right-angle block 101 is arranged towards one side of the ejector rod 8, and a template 5 is hinged in the right-angle opening. One end of the template 5 is hinged on the back plate 102, the hinge shaft 6 is perpendicular to the back plate 102, a chamfer is arranged at the edge of the upper surface of the other end, and when the two templates 5 positioned on the left side and the right side are rotated onto the top surface of the seat plate 7, the two chamfers are spliced into a V-shaped die cavity. The upper surface of each template 5 is connected with a tension spring 4, and the tension springs 4 respectively pull the two templates 5 to a position separated from the top surface of the seat plate 7 in a non-punching state.
Before the use, the chamfer ends of two templates 5 slope upwards in opposite directions under the effect of extension spring 4, will wait for folded plate 3 to keep flat the upper surface of the department of meeting between two chamfers, start the punching machine, cutter 2 moves down and gradually bends the panel and the shaping is finished when two templates 5 all are located bedplate 7 top surface, obtain required "angle steel" structure, then cutter 2 withdraws, ejector pin 8 upwards pushes up two templates 5 to the separation under spring 9 restoring force effect, and upwards pops up the panel that will fold, realize the drawing of patterns.
Further, the first spring 20 is disposed horizontally so as to better apply force to the two die plates 18.
Further, the minimum horizontal gap L between the two press modules 18 is located below the two circular arc notches 1801, and the ratio of the minimum horizontal gap L to the circular cavity diameter is 3:20. The flexible rotation of the two die plates 18 can be ensured more effectively under the structural dimension, the circular die cavities can be spliced, the molding quality is improved, and the whole structure is more compact and reasonable as much as possible.
Further, the ratio of the included angle B between the two waist walls a of the first recess 1701 to the included angle a formed by the chamfer 1802 of the two pressing modules 18 is 3:10. Under this structural dimension, can further guarantee effectively that two die plates 18 splice into circular die cavity makes the steel pipe shaping after, can let the steel pipe leave the die cavity of die plate 18 better under ejector pin 22 and first spring 20 cooperation, also be favorable to waiting flap material 3 and die-cut mold core 24 (an optical axis) to get into the die cavity between two die plates 18 smoothly fast in the punching press initial simultaneously, also improve shaping quality simultaneously to make overall structure more compact reasonable as far as possible.
Further, as shown in fig. 7, the junction between the first groove 1701 and the second groove 1702 is rounded, the center of the rounded second rounded corner c is located on the axis of the hinge shaft 19 when the two pressing modules 18 are hinged to the front and rear side walls of the first groove 1801, and the first rounded corner b can be inscribed with the second rounded corner c during rotation. This structural design facilitates flexibility and stability of the two modules 18 when rotated.
Further, semicircular notches are respectively provided on the left and right side walls of the base 17, so as to ensure the overall bearing performance of the base 17 on the premise of reducing the weight of the overall base 17.
Further, as shown in fig. 11, a pad 10 is hinged at the bottom edge of the chamfer of each die plate 5 and the pad 10 can cover the chamfer entirely when it is rotated onto the chamfer about the hinge axis at the bottom end thereof; a worm 13 is horizontally arranged in the template 5, the worm 13 can freely rotate in the template 5, one end of the worm 13 extends out of the chamfer surface, and a spiral groove which is matched with the spiral convex lines on the worm 13 is correspondingly arranged in the template 5, so that the worm 13 can freely rotate and axially move. A rotatable worm wheel 14 meshed with the worm 13 is arranged in a cavity at the upper part of the template 5, and a fastening device for controlling the rotation of the worm wheel 14 is also arranged at the front side of the template 5 so as to control the rotation of the worm wheel 14, and the worm wheel 14 is locked when required, so that the influence of the rotation of the worm 13 on the positioning of the backing plate 10 is avoided. The design is mainly used for realizing the adjustment of the bending included angle of the steel plate, is suitable for bending and forming of 'angle steel' steel plates with more included angles, rotates the worm wheel 14 when in use, and enables the worm 13 to be screwed in and out of the die plate 5 so as to control the adjustment of the inclination angle of the backing plate 10, thereby realizing the punching die cavity required by different steel bending included angles, and being particularly suitable for processing plates with low precision and large quantity of bending included angles.
Further, as shown in fig. 12, cylindrical flanges 1401 on two end surfaces of the worm wheel 14 are rotatably located on two opposite side walls of the cavity, the fastening device is a bolt 15, the bolt 15 can extend into the cavity from the outside and be screwed into one of the flanges 1401 to prevent the worm wheel 14 from rotating, holes coaxial with each other are respectively formed on the other flange 1402 and the side wall of the cavity opposite to the one flange 1401, wherein a first hole located on the cavity is a through hole through which the socket head wrench 16 can pass, and a second hole located on the other flange 1402 is a hexagonal hole capable of being matched with the socket head wrench 16. This structural design is primarily convenient for preventing rotation of the worm gear 14 when needed, or for rotating the worm gear 14 when needed. I.e., the bolts 15 are screwed into one of the flanges 1401 to fix the worm wheel 14. When the worm wheel 14 is required to rotate, the socket head wrench 16 is inserted into the other flange 1402, and the worm wheel 14 is rotated to drive the worm 13 to feed.
Of course, the worm and gear structure can also be replaced by a threaded screw rod structure, namely, the worm gear 14 is replaced by a gear or a threaded collar with a threaded hole, the threaded collar or the gear is screwed on the screw rod, the axial movement of the screw rod is realized by stirring the threaded collar or the gear, and the two flange structures and other corresponding structures are also arranged at the two ends of the threaded collar or the two end faces of the gear, so that the threaded collar or the gear can be prevented from rotating or screwed to rotate. In addition, the worm and gear mechanism can be replaced by a gear and rack mechanism, and the installation mode of the worm and gear mechanism is similar to that of a worm and gear.
Further, one end of the worm 13 extending out of the chamfer surface is provided with a hardened alloy steel ball 11, and the alloy steel ball 11 can completely enter the counter bore 12 on the chamfer surface, so that the hardened alloy steel ball 11 is beneficial to contact with the backing plate 10 at any inclined position, friction is reduced, and the influence on supporting and limiting of the backing plate 10 after the contact part is worn is avoided.
Further, the tension spring 4 is vertically disposed so as to apply force to the template 5.
Further, the cross section of the pad 10 is triangular, and when the pad 10 is completely attached to the chamfer, the surface on which one side is located is flush with the upper surface of the template 5, so that when the pad 10 is not in use, the upper surface of the template 5 is smooth after the pad 10 is placed flat.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. A stamping machine, characterized in that: comprises a steel pipe rolling device and a steel plate bending mechanism which are arranged side by side;
the steel pipe rolling device comprises a base, wherein a stepped groove is formed in the center of the base along the vertical direction of the base, a first groove, a second groove and a third groove which are isosceles trapezoid are sequentially formed in the opening direction of the stepped groove towards the bottom of the stepped groove, the large end of the first groove faces upwards, and the small end of the first groove is connected with the second groove;
two pressing modules which are not connected with each other are symmetrically arranged in the first groove in a left-right mode, and the left lower corner of the left pressing module and the right lower corner of the right pressing module are hinged to corresponding positions of the front side wall and the rear side wall of the first groove, so that the two pressing modules can freely rotate in the first groove for a certain angle; the lower end edge of the side surface of the two pressing modules, which faces to one side of the corresponding waist wall of the first groove, is provided with a first chamfer, the middle part of the side surface, which faces away from the waist wall, is provided with an arc notch, the upper end edge of the side surface is provided with a chamfer, and the chamfer is connected with the arc notch in an arc transition way; the two pressing modules are respectively pulled to be attached to the corresponding waist wall by the first springs fixed in the waist walls at the two sides of the first groove, so that a gap formed between the sides of the two pressing modules where the bevels are positioned is enough to accommodate the vertical passing of the rolled steel pipe;
the bottom of the third groove is fixedly connected with the bottom end of the second spring, the top end of the second spring is connected with a push rod extending into the bottom of the third groove, the push rod does not completely slide out of the third groove under the natural length of the second spring, so that in a non-working state, the push rod passes through the base plate and then pushes the two pressing modules to the positions respectively attached to the corresponding waist walls of the first groove, and in a working state, when the bottom end surfaces of the two pressing modules are both rotated onto the top surface of the base plate, the two circular arc gaps are combined into a circular die cavity;
the steel plate bending mechanism comprises a seat plate, a blind hole is vertically formed in the center of the seat plate, a spring is arranged at the bottom of the blind hole, the bottom end of the spring is fixed at the bottom of the blind hole, the top end of the spring is connected with the bottom of a push rod extending into the blind hole, and the push rod does not completely slide out of the blind hole when the spring is in a natural length; the two sides of the ejector rod are respectively and symmetrically provided with a bracket, the bracket comprises two parts of a right-angle block and a platy backboard, wherein the right-angle block is of a right-angle steel structure with a right-angle cross section, one end of the right-angle block is integrally provided with traitors for plugging the end, the side plate of one right-angle side of the right-angle block is vertically fixed on the top surface of the seat plate, the right-angle opening side of the right-angle block is arranged towards one side of the ejector rod, a template is hinged in the right-angle opening, one end of the template is hinged on the backboard, a hinge shaft is perpendicular to the backboard, the edge of the upper surface of the other end of the template is provided with a chamfer, and when the two templates positioned at the left side and the right side are both rotated to the top surface of the seat plate, the two chamfers are spliced into a V-shaped die cavity; the upper surface of each template is connected with a tension spring, and the tension springs respectively pull the two templates to a position separated from the top surface of the seat plate in a non-stamping state;
the circular die cavity of the steel pipe rolling device is opposite to and communicated with the V-shaped die cavity of the steel plate bending mechanism, the lowest point of the circular die cavity and the vertex of an included angle of the V-shaped die cavity are positioned on the same horizontal line, and the angular bisector of the V-shaped die cavity is perpendicularly intersected with the axis of the circular die cavity;
the first spring is horizontally arranged; the bottom edge of the chamfer face of each template is hinged with a base plate, and the base plate can fully cover the chamfer face when rotating to the chamfer face around the hinge shaft at the bottom end of the base plate.
2. The stamping press of claim 1, wherein: the minimum horizontal gap between the two die modules is positioned below the two circular arc gaps, and the ratio of the minimum horizontal gap to the diameter of the circular die cavity is 3:20.
3. The stamping press of claim 2, wherein: the ratio of the included angle between the two waist walls of the first groove to the included angle formed by the surface of the chamfer angle of the two pressing modules is 3:10.
4. A press according to claim 3, characterized in that: the rounded corners at the joint of the first groove and the second groove are processed, the circle center of the rounded corners is positioned on the axis of the hinge shaft when the two pressing modules are hinged with the front side wall and the rear side wall of the first groove, and the rounded corners are inscribed with the rounded corners in the rotation process.
5. The stamping press as recited in claim 4, wherein: semicircular notches are respectively arranged on the left side wall and the right side wall of the base.
6. The stamping press of claim 1, wherein: a worm is horizontally arranged in the template, the worm can freely rotate in the template, and one end of the worm extends out of the chamfer surface; the cavity at the upper part of the template is internally provided with a rotatable worm wheel meshed with the worm, and the front side of the template is also provided with a fastening device for controlling the worm wheel to rotate.
7. The stamping press as recited in claim 6, wherein: the cylindrical flanges on the two end surfaces of the worm wheel are respectively and rotatably positioned on two opposite side walls of the cavity, the fastening device is a bolt, the bolt can extend into the cavity from the outer side and be screwed into one flange to prevent the worm wheel from rotating, the other flange and the side wall of the cavity opposite to the flange are respectively provided with holes coaxial with each other, wherein a first hole positioned on the cavity is a through hole for a hexagonal wrench to pass through, and a second hole positioned on the flange is a hexagonal hole matched with the hexagonal wrench.
8. The stamping press as recited in claim 7, wherein: one end of the worm, which extends out of the chamfer surface, is provided with a hardened alloy steel ball which can completely enter a counter bore on the chamfer surface; the tension spring is vertically arranged; the cross section of the base plate is triangular, and when the base plate is completely attached to the chamfer surface, the surface of one side of the base plate is flush with the upper surface of the template.
9. The stamping press as recited in claim 6, wherein: the worm wheel is replaced by a circular thread lantern ring, the worm is replaced by a screw rod, the screw thread lantern ring is screwed on the screw rod, cylindrical first flanges on two end faces of the screw thread lantern ring are respectively and rotatably positioned on two opposite side walls of the cavity, the fastening device is a bolt, the bolt can extend into the cavity from the outer side and be screwed into one of the first flanges to prevent the screw thread lantern ring from rotating, holes coaxial with each other are respectively formed in the other first flange and the side wall of the cavity opposite to the other first flange, wherein the first holes on the cavity are through holes for a hexagonal wrench to pass through, and the second holes on the first flange are hexagonal holes matched with the hexagonal wrench.
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| CN201711498019.3A CN107999632B (en) | 2017-12-29 | 2017-12-29 | punching machine |
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| CN201711498019.3A CN107999632B (en) | 2017-12-29 | 2017-12-29 | punching machine |
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| CN107999632B true CN107999632B (en) | 2023-08-25 |
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| CN108838583A (en) * | 2018-06-27 | 2018-11-20 | 芜湖鼎恒材料技术有限公司 | A kind of welding wire sheet metal wraps up in material device |
| CN111842681B (en) * | 2020-07-09 | 2022-07-22 | 瑞茂金泰(山东)智能设备制造有限责任公司 | Steel plate pressing ring feeding device |
| CN112314990B (en) * | 2020-11-05 | 2022-06-17 | 杨玉生 | Drying equipment is collected to kelp |
| CN113617897A (en) * | 2021-08-17 | 2021-11-09 | 山东兆维铁塔有限公司 | Cylindrical steel bending device and working method thereof |
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