CN111804770A

CN111804770A - A school type device for thin wall section of thick bamboo class parts machining

Info

Publication number: CN111804770A
Application number: CN202010667024.8A
Authority: CN
Inventors: 孙君
Original assignee: Individual
Current assignee: Dongguan Hongkai Precision Technology Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-10-23
Anticipated expiration: 2040-07-13
Also published as: CN111804770B

Abstract

The invention discloses a type correcting device for processing thin-wall cylinder parts. During the use will wait to process the part place with first locating piece on, and make its outer ring surface laminate with the outer ring fitting surface of first locating piece, then alternate the turn-ups hole of part and the shaping hole of first locating piece with the drift in proper order, then the operation end of handheld depression bar, make the depression bar beat the drift top surface through rotary motion, and produce the component force along turn-ups protruding section of thick bamboo turn-ups direction, thereby make shaping portion cooperation shaping hole on the drift exert pressure to the inside and outside surface of part, and then make the part produce plastic deformation and turn-ups, thereby satisfy the processing needs.

Description

A school type device for thin wall section of thick bamboo class parts machining

Technical Field

The invention relates to the field of machining equipment, in particular to a shape correcting device for machining thin-wall cylinder parts.

Background

The flanging is a common form in a stamping process, and the sheet metal part to be processed is subjected to plastic deformation at a specific position through the mutual matching of the male die and the female die, so that the sheet metal part is bent into various shapes.

The flanging and sizing of the side wall hole of the thin-wall cylinder part are carried out aiming at the problem that the size of a flanging convex cylinder does not meet the use requirement in the long-term use or processing process of the cylinder part, so that the flanging convex cylinder can be re-calibrated to meet the use requirement again. However, for the flanging of the side wall hole of the thin-wall cylinder part, the flanging direction is along the radial direction of the cylinder body of the part, and the processing of the concave-convex die also needs to apply a stamping force to the radial direction of the cylinder body of the part, but due to the characteristics of the self-revolving body of the part, the cylinder wall of the part interferes with the configuration of the concave-convex die, so that the processing cannot be performed. Therefore, the conventional concave-convex die design cannot be used for flanging the side wall hole of the barrel part.

Disclosure of Invention

Aiming at the defects in the prior art, the invention discloses a calibrating device for processing thin-wall cylinder parts. During the use will wait to process the part place with first locating piece on, and make its outer ring surface laminate with the outer ring fitting surface of first locating piece, then alternate the turn-ups hole of part and the shaping hole of first locating piece with the drift in proper order, then the operation end of handheld depression bar, make the depression bar beat the drift top surface through rotary motion, and produce the component force along turn-ups protruding section of thick bamboo turn-ups direction, thereby make shaping portion cooperation shaping hole on the drift exert pressure to the inside and outside surface of part, and then make the part produce plastic deformation and turn-ups, thereby satisfy the processing needs.

The invention is realized by the following technical scheme:

a correction device for processing thin-wall cylinder parts is used for correcting flanging convex cylinders of the parts, wherein the parts are provided with an outer ring surface and an inner ring surface, and the peripheral surface of the outer ring surface is annularly provided with the flanging convex cylinders which are flanged outwards; the flanging convex cylinder is provided with a flanging inner hole, and an outer flanging is formed at the intersection of the periphery and the outer ring surface; the inner flanging is formed at the intersection of the peripheral surface of the flanging inner hole and the inner ring surface; has the characteristics that: the shape correcting device comprises a base body, a pressure lever and a punch; the front surface of the base body is provided with an accommodating cavity and a first positioning block; a hinge block is arranged in the accommodating cavity; the top of the first positioning block is provided with an outer ring matching surface which is matched with the outer ring surface in shape and the central line of which is coaxial with the central line of the part; a forming hole is formed in the first positioning block; the orifice of the forming hole is positioned on the matching surface of the outer ring, and an outward-turning correction edge matched with the outline shape of the outward-turning edge is formed along the periphery of the orifice of the forming hole; the two ends of the pressure lever are respectively an operating end and a hinged end; the hinged end is hinged to the hinged block, so that the pressure lever performs rotary motion around the central line of the hinged block; the rotation central line of the pressure rod, the central line of the part and the central line of the forming hole are vertical in pairs; the punch comprises a punching head and a forming part from top to bottom, wherein the cross section of the punching head is from large to small, and the diameter of the forming part is equal to that of the inner hole of the flanging; the step surface between the stamping head and the forming part is an inner ring calibration surface with the contour consistent with that of the inner ring surface; an inward-turned matching edge with the radius smaller than that of the inward-turned edge is formed at the intersection of the inner ring calibration surface and the peripheral surface of the forming part; the forming part is in clearance fit with the forming hole.

Furthermore, a stamping part is also arranged on the pressure lever, and the stamping part is provided with a stamping surface with an arc surface structure; the central line of the stamping surface is parallel to the rotary central line of the pressure rod.

Further, the punch is located between the operating end and the hinged end, and adjacent to the hinged end.

Furthermore, the hinge block is arranged on the bottom surface of the accommodating cavity; the accommodating cavity is positioned right above the first positioning block.

Further, a second positioning block is arranged on the front surface of the base body; the second positioning block is arranged in the first accommodating hole; the center line of the first accommodating hole is vertical to the center line of the part, and a positioning pin is arranged in the first accommodating hole; the positioning pin is inserted and in clearance fit with the inner hole of the flanging, so that the circumferential positioning of the part is realized.

Furthermore, the quick-release bolt is inserted in the top surface of the base body and positioned at the adjacent side of the positioning pin; the quick-release bolt is provided with a quick-release end head extending out of the base body and a quick-release bolt body in threaded connection with the base body; the quick-release end is provided with a clamping side positioned on one side of the quick-release bolt body; the positioning pin is of an axial structure and comprises a limiting end head, a sleeving rod, a limiting rod and a positioning end head from top to bottom; the limiting end is positioned above the second positioning block; the sleeving rod is the part with the smallest diameter in the positioning pin; the first accommodating hole is a stepped hole and is provided with a small hole in clearance fit with the sleeved rod and a large hole in fit with the limiting rod; the sleeving rod is sleeved with a return spring; one end of the reset spring is limited on the step surface of the first accommodating hole, and the other end of the reset spring is limited on the step surface between the sleeving rod and the limiting rod; the quick-release bolt can enable the clamping side of the quick-release end to be clamped between the limiting end and the second positioning block through rotation, enable the return spring to be in a compressed state, enable the positioning pin to rise and enable the positioning end to be separated from the flanging inner hole; the quick-release end is a bolt head structure with a notch formed by cutting off a material on one side of a full-circle bolt head, and the quick-release bolt can also be rotated to enable the clamping side of the quick-release end to release the clamping connection of the limit end, so that the reset spring is reset, the positioning pin descends and the positioning end is inserted into the flanging inner hole.

Furthermore, guide holes which are coaxial with each other are arranged below the forming holes; the diameter of the guide hole is smaller than that of the forming hole; the punch further comprises a guide part which is arranged below the forming part and is coaxial with the forming part; the guide part is in clearance fit with the guide hole.

Furthermore, the pressing assembly is arranged on the front face of the base body and can clamp and fix the parts.

Further, the compression assembly comprises a compression screw and a pressure plate; the end surface of the pressing plate is provided with a through waist-shaped hole; the compression screw penetrates through the waist-shaped hole of the pressure plate and is in threaded connection with the front surface of the base body; the compression screw can drive the pressure plate to move axially along the part through spiral motion, so that the head of the pressure plate compresses the end face of the part.

Furthermore, the edge of the front surface of the base body is provided with a lap joint strip; the head of the pressing plate presses the end face of the part, and the tail of the pressing plate presses the lap joint strip.

Preferably, the stamping device further comprises a pulling plate, a first pulling pin and a second pulling pin, wherein the pulling plate is used for connecting the pressing rod and the punch, the first pulling pin is inserted into the stamping part of the pressing rod, the second pulling pin is inserted into the stamping head of the punch, end covers are arranged at two ends of the first pulling pin and two ends of the second pulling pin, the pulling plate is used for connecting the first pulling pin and the second pulling pin, a round hole matched with the second pulling pin and a kidney-shaped hole matched with the first pulling pin are arranged on the pulling plate, the pulling plate is provided with two pulling plates, the two pulling plates are symmetrically arranged at two sides of the punch, the round hole in the pulling plate is sleeved on the second pulling pin, the kidney-shaped hole in the pulling plate is sleeved on the first pulling pin, the pulling plate is limited between an end cover surface of the first pulling pin and the side surface of the pressing rod and between an end cover surface of the second pulling pin and the side surface of the punch.

Furthermore, second locating piece swing joint is in the positive top of base member, and the positive top of base member is the special-shaped top surface of middle circular arc top surface and the combination of the straight section top surface in both sides, and sets up the direction recess of "T" type of falling on the special-shaped top surface of base member, is equipped with the direction sand grip with the unsmooth complex of direction recess of base member in the bottom surface of second locating piece, and the symmetry is equipped with and the spiral is pegged graft in the second locating piece on the second locating piece to and be located the holding screw of first accommodation hole both sides.

More preferred scheme, the dysmorphism top surface at the positive top of base member is formed by first overlap joint board and second overlap joint board amalgamation, first overlap joint board and second overlap joint board all have the circular arc section that is located the middle part and the straightway of both sides, the straightway of first overlap joint board and second overlap joint board all is through external screw threaded connection in the base member top, first overlap joint board and second overlap joint board all are equipped with "L" type side, and the "L" type side of first overlap joint board and the "L" type side of second overlap joint board are each other the mirror image, and first overlap joint board and second overlap joint board lock joint back on the base member, the relative setting and the combination of "L" type side between them form the cross section be the direction recess of "T" type.

Foretell school type device still is equipped with the shrouding on the base member, and the shrouding adopts threaded connection or welded mode rigid coupling in the base member back, can seal the back that holds the chamber.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1) according to the invention, the punch is beaten by the rotation motion of the compression rod, the component force in the flanging direction is generated by the punch, and the punch is matched with the forming hole to finish the correction of the side wall flanging convex barrel of the barrel part, so that the problem of the correction of the side wall flanging convex barrel, which cannot be solved by the conventional concave-convex die design, is solved.

2) Through setting up articulated piece in holding the chamber bottom surface to and set up first locating block just to holding the chamber below, make the operator along vertical direction and exert force, easier operation to the depression bar with the mode that pushes down.

3) Through setting up the punching press portion in the mode that is close to the hinged end, when making the handheld depression bar operation end of operator push down, can utilize lever principle, the moment of operation end is far greater than punching press portion moment, and the operator is far less than the hitting power of punching press portion to the drift at the application force of operation end, also changes the operation to the operator laborsaving more.

4) Set up cambered surface structure's punching press face in the punching press portion for when punching press portion hit the punching press head top surface through the punching press face, the position of hitting can be close to the central point of drift more and put, makes the power of hitting to the drift more balanced, can not too keep away from the drift center because of hitting the position, and produces great tilting power to the drift, and then avoids stamping process's drift to appear the jamming.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a diagram of a structure of a part to be machined according to an embodiment of the present invention;

FIG. 2 is an enlarged view at I of FIG. 1 according to one embodiment of the present invention;

FIG. 3 is a diagram illustrating an overall configuration of a calibration apparatus according to an embodiment of the present invention;

FIG. 4 is an enlarged view at II of FIG. 3 of one embodiment of the present invention;

FIG. 5 is a diagram illustrating pin alignment according to one embodiment of the present invention;

FIG. 6 is a diagram of a detent release pattern for one embodiment of the present invention;

FIG. 7 is a front view of a sizing device according to an embodiment of the invention;

FIG. 8 is a left side view of a sizing device according to an embodiment of the invention;

FIG. 9 is a first state view of the compression bar stamping of one embodiment of the present invention;

FIG. 10 is a second state view of the compression bar stamping of one embodiment of the present invention;

FIG. 11 is an enlarged view at II of FIG. 10 of one embodiment of the present invention;

FIG. 12 is an overall view of the substrate according to one embodiment of the present invention;

FIG. 13 is an enlarged view at III of FIG. 12 of one embodiment of the present invention;

FIG. 14 is a front view of a substrate according to one embodiment of the present invention;

FIG. 15 is a left side view of the base of one embodiment of the present invention;

FIG. 16 is an enlarged view at IV of FIG. 15 of one embodiment of the present invention;

FIG. 17 is a front view of a punch according to one embodiment of the present invention;

FIG. 18 is an overall structural view of a punch according to an embodiment of the present invention;

FIG. 19 is an enlarged view at V of FIG. 17 of one embodiment of the present invention;

FIG. 20 is an overall view of the compression link according to one embodiment of the present invention;

FIG. 21 is an overall view of a jig according to another embodiment of the present invention;

FIG. 22 is a schematic view of the installation of the pressure plate, the first pull pin and the second pull pin according to another embodiment of the present invention;

FIG. 23 is a schematic cross-sectional view of the press plate, the first pull pin and the second pull pin according to another embodiment of the present invention;

FIG. 24 is a schematic view of the interaction of a pressure plate, a first pull pin and a second pull pin in accordance with another embodiment of the present invention;

FIG. 25 is another schematic view of the interaction of the pressure plate, the first pull pin and the second pull pin in accordance with another embodiment of the present invention;

FIG. 26 is an enlarged view at VI of FIG. 21 of another embodiment of the present invention;

FIG. 27 is a schematic view of a second positioning block of another embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1000-part, B-flange convex cylinder, B1-flange inner hole, R1 a-flanging, R2 a-flanging, D1 a-outer ring surface, L1-axial position, D2 a-inner ring surface, 10-base body, 10A-containing cavity, 10B-sealing plate, 10C-first positioning block, 10C 1-forming hole, R1B-flanging correction edge, 10C 2-guide hole, D1B-outer ring matching surface, 10D-second positioning block, 10D 1-first containing hole, 10D 2-fastening screw, 10E-hinge block, 10F-lap strip, 10G-first lap plate, 10H-second lap plate, 20-quick-release bolt, 20A-quick-release end, 20B-quick-release bolt body, 30-positioning pin, 30A-limit end, L2A-limit end, 30B-a sleeved rod, 30C-a limiting rod, 30D-a positioning end, 31-a return spring, 40-a compression screw, 50-a pressing plate, 60-a pressing rod, 60A-an operating end, 60B-a stamping part, 60C-a hinged end, a C-stamping surface, a 70-punch, 70A-a stamping head, 70B-a forming part, 70C-a guiding part, D2B-an inner ring correcting surface, R2B-an inward turning matching edge, 80-a pulling plate, 90-a first pulling pin and 100-a second pulling pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural, unless the context clearly dictates otherwise.

In some embodiments, the sizing device shown in fig. 3 is used for sizing the sidewall flanging hole of a thin-wall cylinder part, such as for sizing the flanging boss B of the part 1000. The part 1000 is a barrel-type thin-wall part as shown in fig. 1 and 2, and is provided with an outward flanging flange barrel B at an outer ring surface D1 a. The required guaranteed sizes of the flange convex cylinder B comprise the aperture size of a flange inner hole B1, the radius size of a flanging R1a at the intersection of the periphery of the flange convex cylinder B and an outer annular surface D1a and the position size of an axial position L1. The inner flanging R2a is formed at the intersection of the peripheral surface of the flanging inner hole B1 and the inner ring surface D2 a; because of the constant wall thickness of the part 1000, the radius of the inner flange R2a can be determined by increasing the wall thickness by one more dimension based on the radius of the outer flange R1 a. When a plurality of flanging inner holes and flanging convex cylinders B are processed on the cylinder type thin-wall ring, after the cylinder type thin-wall ring is processed and formed or the part 1000 is used for a period of time, as for the reason of the shape of the cylinder type thin-wall ring, one or more flanging inner holes and flanging convex cylinders B which are arranged on the circumference of the cylinder type thin-wall ring can generate some deformation after being processed or after being used for a period of time, so that the aperture sizes of the one or more flanging inner holes and flanging convex cylinders B and the size of the flanging convex cylinders B are unqualified, and at the moment, the unqualified flanging inner holes and flanging convex cylinders in the plurality of flanging inner holes and flanging convex cylinders B which are arranged on the cylinder type thin-wall ring need to be calibrated. The purpose of the application is to correct unqualified flanging inner holes and flanging convex cylinders on the cylinder type thin-wall ring so as to ensure the size of a flanging inner hole B1 and the size of a flanging R1a of the part 1000.

The calibrating device comprises a base body 10, a plunger 60 and a punch 70 as shown in fig. 3. As shown in fig. 12, the front surface of the base body 10 is provided with a housing cavity 10A and a first positioning block 10C. The accommodation chamber 10A is provided with a hinge block 10E shown in fig. 14 and 15. The top of the first positioning block 10C is provided with an outer ring fitting surface D1a which is matched with the shape of the outer ring surface D1a as shown in FIG. 13, and is provided with an outer ring fitting surface D1b of which the center line is coaxial with the center line of the part 1000. As shown in fig. 13, 15 and 16, a molding hole 10C1 is formed in the first positioning block 10C; the orifice of the shaped hole 10C1 is located on the outer ring mating surface D1b, and an outward flanging correction edge R1b which matches the contour shape of the outward flanging R1a is formed along the periphery of the orifice of the shaped hole 10C 1.

As shown in fig. 20, the two ends of the plunger 60 are an operating end 60A and a hinge end 60C, respectively. The hinge end 60C is hinged to the hinge block 10E as shown in fig. 8-10, allowing the plunger 60 to perform a pivoting motion about the centerline of the hinge block 10E. As can be seen from fig. 3, 7, 8 and 12, the center line of the rotation of the pressing rod 60, the center line of the part 1000 and the center line of the forming hole 10C1 are perpendicular to each other.

As shown in fig. 17 to 19, the punch 70 includes a punching head 70A and a forming portion 70B, which are arranged from top to bottom and have a cross section that is gradually reduced from the large side to the small side; the diameter of the forming portion 70B is equal to the bore diameter of the flange inner bore B1 of the part 1000. The step surface between the punch head 70A and the forming section 70B is an inner ring relief surface D2B contoured to the inner ring surface D2 a. The intersection of the inner ring correction profile D2B and the peripheral surface of the forming part 70B forms an inward flanging matching edge R2B with the radius smaller than that of the inward flanging R2 a. The molding portion 70B is clearance-fitted to the molding hole 10C 1.

In use, the bottom surface of the part 1000 is fitted to the front surface of the base 10 as shown in fig. 3 and 8, and the part 1000 is axially positioned to meet the dimension of the axial position L1; then inserting a flanging convex cylinder B to be shaped into the forming hole 10C1 for circumferential positioning as shown in FIG. 11; and the outer ring surface D1a is fitted to the outer ring fitting surface D1b shown in fig. 12 and 13, and the component 1000 is positioned in the radial direction, so that the component 1000 is positioned and restrained, and the component 1000 is in the positioned state shown in fig. 3. The punch 70 is then sequentially inserted through the flanging bosses B as shown in fig. 11 and into the forming hole 10C1 shown in fig. 16. Then, the operator operates the pressing rod 60 to perform a rotation movement as shown in fig. 9 and 10, so that the pressing rod 60 strikes the top surface of the punch 70, and forms a component force along the flanging direction of the flanging barrel B of the component 1000, and further, the forming portion 70B and the forming hole 10C1 are mutually matched as shown in fig. 11, and form a punching force on the inner surface and the outer surface of the flanging barrel B, and the flanging inner hole B1, the flanging R1a, the outer annular surface D1a, the inner annular surface D2a, and the like are restored by the constraint of the profile of the forming portion 70B and the inner ring calibration surface D2B and the inner flanging matching edge R2B thereon as shown in fig. 19, the forming hole 10C1 and the flanging calibration edge R1B and the outer annular matching surface D1B, and the like as shown in fig. 16, so that the flanging barrel B is calibrated.

As shown in fig. 9 and 10, the press rod 60 is also inserted into the inner annular surface D2a of the part 1000 during use, and the path of the rotational movement is limited by the inner annular surface D2a, but the punch 70 can also be freely inserted into the inner annular surface D2a of the part 1000 while the need for striking the top surface of the punch 70 is satisfied. In conclusion, the bending die completes the bending of the flanging convex cylinder B by utilizing the striking of the rotary motion of the press rod 60 to the punch 70 and the mutual matching of the profiles of the relevant profiles on the forming part 70B and the forming hole 10C1, and solves the technical effect which cannot be achieved by the traditional concave-convex die.

In some embodiments, as shown in fig. 14, a hinge block 10E is provided on the bottom surface of the accommodation chamber 10A; the accommodation chamber 10A is located right above the first positioning block 10C. This is a preferred layout of the present application, so as shown in fig. 9 and 10, when the operator operates the pressing rod 60, the part 1000 is calibrated by pressing down the pressing rod 60 from top to bottom, and the pressing down mode is most labor-saving for the operator and is also convenient for operation.

Meanwhile, in order to further enable the pressing rod 60 to strike the punch 70 scientifically and reasonably, as shown in fig. 20, the pressing rod 60 is further provided with a punching part 60B, and the punching part 60B is provided with a punching surface C with an arc surface structure; the center line of the punching surface C and the center line of revolution of the pressing rod 60 are parallel to each other. As shown in fig. 9 and 10, in this design, considering that the plunger 60 strikes the punch 70 by the rotary motion, if the striking surface of the punch portion 60B is a flat surface, then during this striking process, the striking surface of the punch portion 60B first touches and only touches the edge of the top surface of the punch 70, and the striking position is far away from the center position of the punch 70, and such deviation may cause the punch 70 to turn over and be stuck, so that the shape correction work cannot be performed smoothly. The punching surface C is made into a cambered surface, in the striking process, along with the difference of the position of the punch 70, the contact position of the punching surface C and the punch 70 also changes, but the change position of the punching surface C is close to the central position of the punch 70, so that the punch 70 is prevented from being overturned and clamped, and the smooth operation of the shape correction is ensured. The top surface of the punch 70A is preferably flat, so that when the plunger 60 strikes the punch 70, the punch surface C and the top surface of the punch 70 are in smooth contact, the generated horizontal component force is small, and the punch 70 can be prevented from overturning and clamping.

More preferably, the punch 60B is located between the operating end 60A and the hinge end 60C, and is proximate to the hinge end 60C. As shown in fig. 9 and 10, when the operator holds the operation end 60A of the plunger 60 and presses down, the moment of the operation end 60A is much larger than that of the punch part 60B by using the lever principle, and the force applied by the operator at the operation end 60A is much smaller than the impact force of the punch part 60B on the punch 70, so that the operator can save more labor and operate the punch more easily.

In some embodiments, as shown in fig. 3 to 5, a second positioning block 10D is further disposed on the front surface of the base 10. The second positioning block 10D has a first accommodating hole 10D1 shown in fig. 12. As shown in fig. 3 to 6, the center line of the first accommodation hole 10D1 is perpendicular to the center line of the component 1000, and the positioning pin 30 is provided therein; the positioning pin 30 is inserted into the turned-over inner hole B1 in a clearance fit mode, and therefore the part 1000 is circumferentially positioned. In the design, the flanging of the flanging convex cylinder B is considered to be short, so that when the flanging convex cylinder B is inserted into the forming hole 10C1, because the contact area between the flanging convex cylinder B and the forming hole is too small to form firm circumferential positioning, the design of the second positioning block 10D and the positioning pin 30 is added, when a certain flanging convex cylinder B needs to be machined, as shown in fig. 5-8, the positioning pin 30 is inserted into any other flanging convex cylinder B which is not machined, and therefore effective positioning of the part 1000 is completed. In this embodiment, the flanging convex cylinder B on the part 1000 is an even number, so that the arrangement is preferably vertical from top to bottom, as shown in fig. 14, of the second positioning block 10D, the accommodating cavity 10A and the first positioning block 10C, so that the positioning pin 30 is used for inserting and positioning the flanging convex cylinder B at the top of the part 1000, and the punch 70 is used for calibrating the flanging convex cylinder B at the bottom of the part 1000, so that the arrangement is more reasonable.

A preferred positioning means is also shown in fig. 3-6, and further includes a quick release bolt 20 inserted on the top surface of the base 10 and located adjacent to the positioning pin 30. The quick-release bolt 20 is provided with a quick-release end 20a protruding out of the base body 10 and a quick-release bolt body 20b in threaded connection with the base body 10; the quick release end 20a is a bolt head structure with a notch formed by cutting off material on one side of a full-circle bolt head, and is provided with a clamping side positioned on one side of the quick release bolt body 20 b.

The positioning pin 30 is of a shaft structure and includes a limiting end 30a, a sleeve rod 30b, a limiting rod 30c and a positioning end 30d from top to bottom. The limiting end 30a is positioned above the second positioning block 10D; the sleeved rod 30b is the smallest diameter portion of the positioning pin 30. The first accommodation hole 10D1 is a stepped hole and has a small hole that is clearance-fitted with the sleeved rod 30b and a large hole that is fitted with the stopper rod 30c as shown in fig. 5. The sleeve rod 30b is sleeved with a return spring 31; one end of the return spring 31 is limited on the step surface of the first accommodating hole 10D1, and the other end is limited on the step surface between the sleeve rod 30b and the limiting rod 30 c.

The quick-release bolt 20 can be rotated to enable the clamping side of the quick-release end 20a to be clamped between the limit end 30a and the second positioning block 10D as shown in FIG. 6, enable the return spring 31 to be in a compressed state, and enable the positioning pin 30 to rise and enable the positioning end 30D to be separated from the flanging inner hole B1; the quick release bolt 20 can also be rotated to release the clamping of the limit end 30a at the clamping side of the quick release end 20a as shown in fig. 5, so that the return spring 31 is reset, the positioning pin 30 descends, and the positioning end 30d is inserted into the flanging inner hole B1, thereby the positioning pin 30 can realize quick positioning and release positioning of the part 1000.

In some embodiments, as shown in fig. 15 and 16, below the forming hole 10C1, there are also provided guide holes 10C2 coaxial with each other; the diameter of the guide hole 10C2 is smaller than that of the forming hole 10C 1. As shown in fig. 17 and 18, the punch 70 further includes a guide portion 70C provided below the forming portion 70B and coaxial with the forming portion 70B. As can be seen from fig. 10, 11, 15, and 16, the guide portion 70C is in clearance fit with the guide hole 10C2, and provides a guide function for the punch 70, so that the punch 70 can better complete the calibration of the part 1000.

In some embodiments, the shape correction device shown in fig. 3 further includes a pressing component, which is disposed on the front surface of the base 10 and is capable of clamping and fixing the part 1000. The pressing assembly may be a three-jaw chuck structure to clamp the circumferential surface of the part 1000, but considering that the part 1000 is a thin-walled part, circumferential pressing may deform the part 1000, so the preferable pressing assembly shown in fig. 3 includes a pressing screw 40 and a pressing plate 50; the end surface of the pressing plate 50 is provided with a through waist-shaped hole; the compression screw 40 is inserted through the kidney-shaped hole of the pressure plate 50 and is screwed to the front surface of the base body 10. The compression screw 40 can drive the pressing plate 50 to move axially along the part 1000 through a screw motion, so that the head of the pressing plate 50 compresses the front end face of the part 1000. The end face compression mode can effectively prevent clamping deformation of the part 1000 while clamping and fixing.

Furthermore, the edge of the front surface of the base body 10 is provided with a lap joint strip 10F; the head of the pressing plate 50 presses the front end face of the part 1000, and the tail of the pressing plate 50 presses the joint strip 10F. This is the terminal surface of considering part 1000 and compresses tightly the characteristics, if do not set up overlap joint strip 10F, just need set up a lapping plate at the clamp plate 50 afterbody, and clamp plate 50 just can only be used for compressing tightly part 1000 like this, does not have the commonality, and sets up overlap joint strip 10F, and the lapping plate height of clamp plate 50 afterbody just can shorten or do not set up, just can be inside local materials of getting selected for use standard clamp plate to reform system or directly select for use standard clamp plate, and is more convenient. More preferably, the compression screw 40 and the pressure plate 50 are symmetrically arranged at two sides of the part 1000; strap 10F is also symmetrically disposed on both sides of part 1000. The two sides are symmetrically clamped, and the clamping effect is better.

In some embodiments, as shown in fig. 3 and 8, the base 10 further includes a cover plate 10B. Shrouding 10B adopts threaded connection or welded mode rigid coupling in the base member 10 back, can will hold chamber 10A and seal the back, prevents that the dust is too much to get into.

Fig. 21-27 illustrate another embodiment of the present application, which further includes a pull plate 80, a first pull pin 90 and a second pull pin 100, as shown in fig. 21. As shown in fig. 22 and 23, the first pull pin 90 is inserted into the punch portion 60B of the presser bar 60, and the second pull pin 100 is inserted into the punch head 70A of the punch 70. The first pull pin 90 and the second pull pin 100 have the same structure, and both have end covers at both ends, and the inserting direction of the first pull pin 90 and the second pull pin 100 is consistent with the direction of the rotation central axis of the pressure lever 60. The metal plate structure of the pulling plate 80 is provided with round holes and waist-shaped holes at two ends respectively, wherein the length direction of the waist-shaped holes of the pulling plate 80 points to the round holes of the pulling plate 80. The pulling plates 80 are symmetrically arranged on two sides of the punch 70, round holes of the pulling plates 80 are sleeved on the second pulling pin 100, waist-shaped holes of the pulling plates 80 are sleeved on the first pulling pin 90, and the pulling plates 80 are limited between the end cover surface of the first pulling pin 90 and the side surface of the pressing rod 60 and between the end cover surface of the second pulling pin 100 and the side surface of the punch 70. In this way, the pressing rod 60 and the punch 70 are connected into a whole through the pulling plate 80, the first pulling pin 90 and the second pulling pin 100, so that the pressing rod 60 can move relative to the punch 70 without being separated from each other, the principle is as shown in fig. 24 and fig. 25, when the part 1000 is punched, the pressing rod 60 is lifted through rotary motion, at this time, force is transmitted to the punch 70 through the pulling plate 80, the first pulling pin 90 and the second pulling pin 100, so that the punch 70 is pulled out of the forming hole 10C1, thus, the moment is prolonged by using the lever principle, the part 1000 can be corrected in a labor-saving manner in the punching process, the punch 70 can be pulled out in a labor-saving manner by using the lever principle after punching is finished, the situation that the punch 70 is not easily pulled out due to the friction force on the peripheral surface after correction is prevented, and the labor intensity is reduced. The design of the round hole at one end and the waist-shaped hole at the other end of the pulling plate 80 is to enable the pulling plate 80 to follow the rotary motion of the pressing rod 60 while pulling out the punch 70, adjust the relative position with the pressing rod 60, prevent clamping stagnation, and simultaneously ensure the stroke required by the pressing rod 60 to strike the punch 70 through the rotary motion.

More preferably, as shown in fig. 26 to 27, the second positioning block 10D is movably connected to the top of the front surface of the base 10. The top of the front face of the base body 10 is a special-shaped top face structure formed by combining a middle arc top face and two side straight section top faces, the arc top of the front face of the base body 10 and the part 1000 are concentrically arranged, the special-shaped top face of the base body 10 is provided with a guide groove, the cross section of the guide groove is inverted T-shaped and penetrates from the straight section top face on one side of the special-shaped top face of the base body 10 to the straight section top face on the other side, the bottom face of the second positioning block 10D is consistent with the profile of the arc top face of the base body 10, the bottom face of the second positioning block 10D is provided with a guide convex strip which is complementary to the guide groove of the base body. The end surface of the second positioning block 10D is further provided with symmetrically arranged fastening screws 10D2 screwed into the second positioning block 10D and located at two sides of the first accommodating hole 10D 1. Thus, the second positioning block 10D can make a circular motion relative to the base 10, which is attached to the circular arc top surface of the base 10, i.e., a circular motion around the central axis of the component 1000. The purpose of the arrangement is to consider that the flanging convex cylinders B on the part 1000 have different included angles with different numbers and the included angles of the adjacent flanging convex cylinders B are different, and when the flanging convex cylinders B on the part 1000 are uniformly distributed in even numbers, the flanging convex cylinders B can be processed in a top positioning and bottom shape correcting mode, but when the flanging convex cylinders B on the part 1000 are in other arbitrary odd numbers, the flanging convex cylinders B cannot be directly processed in the mode. This needs to utilize this design, because second locating piece 10D can do circular motion around the central axis of part 1000, so second locating piece 10D just can rotate to arbitrary angle, makes locating pin 30 on it just to needing to fix a position turn-ups boss B, no matter how many turn-ups boss B number on part 1000, second locating piece 10D can both change the angle through the circumference telemechanical, makes locating pin 30 just to needing to fix a position turn-ups boss B and accomplish the location. The design of the set screw 10D2 is to screw the set screw 10D2 after the second positioning block 10D is rotated to the angle required to be positioned, so that the bottom of the set screw 10D2 contacts with the irregular top surface of the substrate 10, and further the second positioning block 10D is lifted up by screwing the set screw 10D2, and further the guiding protrusion on the second positioning block 10D and the guiding groove of the substrate 10 are pulled and stressed, and the second positioning block 10D is fixed on the substrate 10 at this time.

More preferably, the irregular top surface of the base body 10 is formed by splicing a first lapping plate 10G and a second lapping plate 10H, the first lapping plate 10G and the second lapping plate 10H are both provided with a circular arc section positioned in the middle and straight line sections positioned on two sides, the straight line sections of the first lapping plate 10G and the second lapping plate 10H are both connected to the top of the base body 10 through external screw threads, the first lapping plate 10G and the second lapping plate 10H are both provided with an L-shaped side edge, and the L-shaped side edge of the first lapping plate 10G and the L-shaped side edge of the second lapping plate 10H are mirror images of each other, after the first lapping plate 10G and the second lapping plate 10H are buckled on the base body 10, the L-shaped sides of the first lapping plate 10G and the second lapping plate 10H are oppositely arranged and combined to form the inverted guide groove with the T-shaped cross section, the reason is that the guide groove with the T-shaped cross section is difficult to directly process, so the design of a combined assembly mode is adopted.

The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A correction device for processing thin-wall cylinder parts is used for correcting a flanging convex cylinder (B) of a part (1000), the part (1000) is provided with an outer annular surface (D1a) and an inner annular surface (D2a), and the peripheral surface of the outer annular surface (D1a) is annularly provided with the flanging convex cylinder (B) which is outwards flanged; the flanging convex cylinder (B) is provided with a flanging inner hole (B1), and a flanging (R1a) is formed at the intersection of the periphery and the outer ring surface (D1 a); turn-ups hole (B1) global and interior annular (D2a) intersection form inside turn-ups (R2a), its characterized in that: the sizing device comprises a base body (10), a compression bar (60) and a punch (70);

the front surface of the base body (10) is provided with an accommodating cavity (10A) and a first positioning block (10C); a hinged block (10E) is arranged in the accommodating cavity (10A); the top of the first positioning block (10C) is provided with an outer ring matching surface (D1b) matched with the outer ring surface (D1a) in shape; a forming hole (10C1) is formed in the first positioning block (10C); the orifice of the forming hole (10C1) is positioned on the outer ring matching surface (D1b), and an outward flanging correction edge (R1b) which is matched with the contour shape of the outward flanging (R1a) is formed along the periphery of the orifice of the forming hole (10C 1);

the two ends of the pressure lever (60) are respectively an operating end (60A) and a hinged end (60C); the hinged end (60C) is hinged to the hinged block (10E);

the punch (70) comprises a punching head (70A) and a forming part (70B), and the diameter of the forming part (70B) is equal to that of the flanging inner hole (B1); the step surface between the punching head (70A) and the forming part (70B) is an inner ring correction surface (D2B) which is consistent with the outline of the inner ring surface (D2 a); the intersection of the inner ring calibrating surface (D2B) and the peripheral surface of the forming part (70B) forms an inward flanging matching edge (R2B) with the radius smaller than that of the inward flanging (R2 a); the molding portion (70B) is clearance-fitted to the molding hole (10C 1).

2. A sizing device according to claim 1, wherein: the pressure lever (60) is also provided with a stamping part (60B), and the stamping part (60B) is provided with a stamping surface (C) with an arc surface structure; the punch (60B) is located between the operating end (60A) and the hinge end (60C) and adjacent to the hinge end (60C); the hinged block (10E) is arranged on the bottom surface of the accommodating cavity (10A); the accommodating cavity (10A) is positioned right above the first positioning block (10C); a second positioning block (10D) is arranged on the front surface of the base body (10); the second positioning block (10D) is arranged in the first accommodating hole (10D 1); the center line of the first accommodating hole (10D1) is perpendicular to the center line of the part (1000), and a positioning pin (30) is arranged in the first accommodating hole; the positioning pin (30) is inserted into the flanging inner hole (B1) in a clearance fit mode, and circumferential positioning of the part (1000) is achieved.

3. A sizing device according to claim 2, wherein: the quick-release bolt (20) is inserted in the top surface of the base body (10) and positioned on the adjacent side of the positioning pin (30); the quick-release bolt (20) is provided with a quick-release end (20a) extending out of the base body (10) and a quick-release bolt body (20b) in threaded connection with the base body (10); the quick-release end (20a) is provided with a clamping side positioned on one side of the quick-release bolt body (20 b);

the positioning pin (30) is of a shaft structure and comprises a limiting end head (30a), a sleeving rod (30b), a limiting rod (30c) and a positioning end head (30d) from top to bottom; the limiting end (30a) is positioned above the second positioning block (10D); the sleeving rod (30b) is the part with the smallest diameter in the positioning pin (30);

the first accommodating hole (10D1) is a step hole and is provided with a small hole in clearance fit with the sleeving rod (30b) and a large hole in fit with the limiting rod (30 c);

the sleeve rod (30b) is sleeved with a return spring (31); one end of the return spring (31) is limited on the step surface of the first accommodating hole (10D1), and the other end is limited on the step surface between the sleeving rod (30b) and the limiting rod (30 c).

4. A sizing device according to claim 1, wherein: guide holes (10C2) which are coaxial with each other are further arranged below the forming holes (10C 1); the diameter of the guide hole (10C2) is smaller than that of the forming hole (10C 1);

the punch (70) further comprises a guide part (70C) which is arranged below the forming part (70B) and is coaxial with the forming part (70B);

the guide part (70C) is in clearance fit with the guide hole (10C 2);

the clamping device is characterized by further comprising a pressing assembly, wherein the pressing assembly is arranged on the front face of the base body (10) and can clamp and fix the part (1000).

5. A sizing device according to claim 4, wherein: the compression assembly comprises a compression screw (40) and a pressure plate (50); the end surface of the pressing plate (50) is provided with a through waist-shaped hole;

the compression screw (40) penetrates through the waist-shaped hole of the pressure plate (50) and is in threaded connection with the front surface of the base body (10);

the compression screw (40) can drive the pressure plate (50) to axially move along the part (1000) through spiral motion, so that the head of the pressure plate (50) compresses the end face of the part (1000);

the edge of the front surface of the base body (10) is provided with a lap joint strip (10F); the head of the pressing plate (50) presses the end face of the part (1000), and the tail of the pressing plate (50) presses the lap joint strip (10F).

6. A sizing device according to claim 3, wherein: the quick-release end (20a) is a bolt head structure with a notch formed by cutting off material on one side of a full-circle bolt head, the quick-release bolt (20) can enable the clamping side of the quick-release end (20a) to be clamped between the limiting end (30a) and the second positioning block (10D) through rotation, the return spring (31) is in a compression state, and the positioning pin (30) is enabled to ascend, and the positioning end (30D) is enabled to be separated from the flanging inner hole (B1); the quick-release bolt (20) can also release the clamping of the limit end (30a) at the clamping side of the quick-release end (20a) by rotating, so that the reset spring (31) is reset, the positioning pin (30) descends, and the positioning end (30d) is inserted into the flanging inner hole (B1).

7. A sizing device according to claim 1, wherein: the drawing plate structure is characterized by further comprising a drawing plate (80) for connecting the pressing rod (60) and the punch (70), a first drawing pin (90) and a second drawing pin (100), wherein the first drawing pin (90) is inserted into a punching part (60B) of the pressing rod (60), the second drawing pin (100) is inserted into a punching head (70A) of the punch (70), end covers are arranged at two ends of the first drawing pin (90) and the second drawing pin (100), the first drawing pin (90) and the second drawing pin (100) are connected through the drawing plate (80), a round hole matched with the second drawing pin (100) and a waist-shaped hole matched with the first drawing pin (90) are formed in the drawing plate (80), the two drawing plates (80) are arranged on two sides of the punch (70) symmetrically, a round hole in the drawing plate (80) is sleeved on the second drawing pin (100), the waist-shaped hole in the drawing plate (80) is sleeved on the first drawing pin (90), and the drawing plate (80) is limited between the side surface of the first drawing plate (60) and the end surface of the drawing pin (100), and is confined between the end cap face of the second pull pin (100) and the side face of the punch (70).

8. A sizing device according to claim 2, wherein: the second positioning block (10D) is movably connected to the top of the front face of the base body (10), the top of the front face of the base body (10) is a special-shaped top face combined by a middle arc top face and straight section top faces on two sides, an inverted T-shaped guide groove is formed in the special-shaped top face of the base body (10), guide convex strips matched with the guide groove of the base body (10) in a concave-convex mode are arranged on the bottom face of the second positioning block (10D), the second positioning block (10D) is symmetrically provided with and spirally inserted into the second positioning block (10D), and set screws (10D2) located on two sides of the first accommodating hole (10D1) are arranged.

9. A sizing device according to claim 8, wherein: the special-shaped top surface at the top of the front surface of the base body (10) is formed by splicing a first lapping plate (10G) and a second lapping plate (10H), the first lapping plate (10G) and the second lapping plate (10H) are both provided with a circular arc section positioned at the middle part and straight line sections positioned at two sides, the straight line sections of the first lapping plate (10G) and the second lapping plate (10H) are both connected to the top of the base body (10) through external screw threads, the first lapping plate (10G) and the second lapping plate (10H) are both provided with L-shaped side edges, and the L-shaped side edge of the first lapping plate (10G) and the L-shaped side edge of the second lapping plate (10H) are mirror images of each other, and after the first lapping plate (10G) and the second lapping plate (10H) are buckled on the base body (10), the L-shaped sides of the two are oppositely arranged and combined to form the guide groove with the inverted T-shaped cross section.

10. A sizing device according to claim 1, wherein: still be equipped with shrouding (10B) on base member (10), shrouding (10B) adopt threaded connection or welded mode rigid coupling in base member (10) back, can seal the back that holds chamber (10A).