CN111283058B

CN111283058B - A blanking and punching production line for car support piece

Info

Publication number: CN111283058B
Application number: CN202010176062.3A
Authority: CN
Inventors: 刘翔; 刘建勋; 丁宪海; 岳林; 刘西才
Original assignee: Tianjin Taizheng Machinery Co ltd
Current assignee: Tianjin Taizheng Machinery Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-08-24
Anticipated expiration: 2040-03-13
Also published as: CN111283058A

Abstract

The invention provides a blanking and stamping production line for an automobile supporting piece, which comprises a conveying unit, wherein the conveying unit sequentially passes through a cutting unit and a punching and blanking unit for cutting a blank; the unit cuts off including the back that can move from top to bottom pressing flitch, preceding pressing flitch and locating the cutting off cutter between two pressing flitchs, preceding pressing flitch keeps away from that back pressing flitch direction articulates there is the material stick that moves, and when needs cut the blank, back pressing flitch, moving material stick and preceding pressing flitch press in proper order on the blank, later cutting off cutter cuts the blank, adopt the preceding that has the height drop, back pressing flitch and moving the material stick and mutually support for blank after the blanking is separated from each other, so that carry out subsequent processing to the blank, prevent to appear the accumulational situation of blank in the follow-up course of working.

Description

A blanking and punching production line for car support piece

Technical Field

The invention belongs to the field of processing production lines, and particularly relates to a blanking and stamping production line for an automobile support piece.

Background

In the automobile parts, especially in the course of working of shell support piece, in order to guarantee machining precision and machining efficiency, the blank blanking is cut off into predetermined part length earlier usually, later to the blank after the blanking shaping processing such as punch a hole, the notching etc. is handled, only can produce a part in the same time quantum of a production line, when great to output demand in the short time, can't satisfy the production needs, and if in order to satisfy the production needs and add the production line temporarily, not only can make manufacturing cost greatly increased, and occupy other functional areas in the factory building in production, demolish the production line after production, also caused the wasting of resources.

In addition, in the prior art, after the blank is cut into the preset size, feeding to the cutting machine needs to be stopped first, so that the cut blank with the standard size moves forward for a certain distance, then the blank is conveyed to the cutting machine again, and the second part is processed, and feeding is interrupted in such a way, so that a space is reserved between the cut blanks, each cut blank is processed in sequence in the subsequent process, and the accumulation of the parts to be processed in the subsequent process is prevented.

Disclosure of Invention

In view of the above, the present invention is directed to a blanking and stamping line for an automobile support, which is capable of separating cut materials from each other at a distance when a blank is processed, so as to prevent the accumulation of parts in subsequent processing.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a blanking and stamping production line for automobile supports comprises a conveying unit, wherein the conveying unit conveys blanks to a cutting unit and a punching and blanking unit which are used for processing the blanks in sequence;

the cutting unit comprises a rear pressure plate capable of moving up and down, a front pressure plate and a cutting knife capable of moving up and down, wherein the cutting knife is arranged between the two pressure plates, when the blank needs to be cut, the rear pressure plate and the front pressure plate are sequentially pressed on the blank, and then the cutting knife cuts the blank.

Furthermore, the cutting unit further comprises a material moving rod, the material moving rod comprises a guide pipe with one closed end, a supporting leg capable of extending out of or inserting into the guide pipe and a material moving spring, the material moving spring is arranged in the guide pipe, the material moving spring and the guide pipe are coaxially arranged, and one end of the material moving spring abuts against the supporting leg.

Furthermore, a first inner flanging is inwards extended from the pipe orifice of the guide pipe, a first outer flanging is outwards extended from the side wall of the support leg, and when the support leg moves to the limit position outwards from the guide pipe, the first outer flanging is abutted against the first inner flanging.

Furthermore, one end of the front pressure plate, which is far away from the rear pressure plate, is provided with a containing cavity, the top of the guide pipe is hinged to the containing cavity, the side wall of the containing cavity, which is close to the rear pressure plate, is provided with a marble cavity, a marble is arranged in the marble cavity, the marble passes through the side wall of the guide pipe, and when the support legs move upwards to the limit positions, the end parts of the marbles can be propped against the side wall of the support legs.

Furthermore, a guide key is fixedly arranged in the guide pipe, a guide groove is fixedly arranged on the support leg, and the guide key is arranged in the guide groove.

Furthermore, the side wall of the supporting leg is provided with an accommodating groove with a sealed bottom end, and when the supporting leg is at the lower limit position, the marble is positioned in the accommodating groove.

Furthermore, the outer end of the marble is a wedge-shaped head, when the supporting leg moves upwards, the sealing part at the bottom end of the containing groove is abutted against the slope surface of the wedge-shaped head of the marble, so that the marble moves towards the cavity of the marble.

Furthermore, one end of the support leg, which is far away from the front pressure plate, is provided with a rubber head.

Furthermore, the cutting unit further comprises an ejector block, the cutting knife and the ejector block move synchronously, the ejector block is connected with the two pressure plates through an elastic guide unit, the elastic guide unit comprises a guide pillar and a guide sleeve, a pressure spring is arranged in the guide sleeve, the guide sleeve is fixedly connected with the ejector block, the guide pillar is fixedly connected with the pressure plates, one end of the pressure spring abuts against the top end of the guide pillar, and the other end of the pressure spring abuts against the ejector block.

Furthermore, a material pushing spring is arranged in the marble cavity, and one end of the material pushing spring is abutted against the marble.

Furthermore, a second inward flanging extends from the bottom end of the guide sleeve inwards, and a second outward flanging extends from the top end of the guide pillar outwards.

Further, when the material cutting unit is in a natural state, the horizontal plane where the bottom ends of the support legs are located is located between the plane where the rear material pressing plate is located and the plane where the front material pressing plate is located.

Further, when the material cutting unit is in a natural state, the cutting edge of the cutting knife is positioned above the plane of the front material pressing plate.

Compared with the prior art, the blanking and stamping production line for the automobile support has the following advantages:

the front and rear pressing plates with height drop and the material moving rod are matched with each other, so that a part of blanked blanks are separated from each other under the matching of the conveying unit, the blanks are conveniently subjected to subsequent processing, the situation of blank accumulation in the subsequent processing process is prevented, the halt of a blank conveying unit is reduced, and the processing efficiency is improved;

the distance of the separated blanks from each other is increased by matching the support legs, the guide tubes and the marbles.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a part processing flow;

FIG. 2 is a schematic view of a cutting unit mold;

FIG. 3 is a schematic sectional view of the internal structure of the accommodating chamber;

FIG. 4 is a schematic perspective view of the inside of a material transfer bar;

FIG. 5 is a schematic view of the fitting structure of the supporting legs and the pins;

description of reference numerals:

1-a transfer unit; 2-a cutting unit; 3-punching and blanking unit; 6-blank; 21-a top block; 22-rear pressure plate; 23-front nip plate; 231-an accommodation cavity; 232-an elastic cavity; 233-marbles; 234-ball spring; 24-a cutting knife; 241-material breaking female die; 25-transferring the material rod; 251-a guide tube; 252-a foot; 253-a material moving spring; 254-rubber head; 255-a first inner flange; 256-first eversion pass; 257-a guide key; 258-guide groove; 259-accommodating grooves; 26-an elastic guide unit; 261-guide column; 262-guide sleeve; 263-swaging spring; 264-second inner flanging; 265-second flanging; 27-a hinged axis; 28-backing plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features in the description of the invention, and unless otherwise indicated, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, a blanking and stamping production line for a vehicle support includes a cutting unit 2 and a punching and blanking unit 3 for blanking a blank 6, and a conveying unit 1 for conveying the blank 6 sequentially conveys the blank to the cutting unit 2 and the punching and blanking unit 3, where the conveying unit 1 may be a multi-segment conveyor belt, a mechanical arm, etc., and how the specific conveyor belt and mechanical arm convey the blank is known in the prior art and is not described herein again.

Referring to fig. 2, the cutting unit 2 includes a cutting die capable of moving in a vertical direction and a hydraulic press for driving the cutting die to move, the second cutting die includes a pressing unit, a cutting knife 24 capable of penetrating through the pressing unit, a material cutting female die 241 disposed right below the cutting knife 24, and a top block 21 for controlling the movement of the cutting knife 24 and the pressing unit, a backing plate 28 is disposed above the top block 21, and the top of the cutting knife 24 abuts against the backing plate 28;

the pressing unit comprises a rear pressing plate 22 and a front pressing plate 23, each pressing plate can move in the vertical direction, when a piston rod of the hydraulic machine moves downwards to a limit position, the rear pressing plate 22 and the front pressing plate 23 can be pressed on the blank 6, the cutting knife 24 is arranged between the rear pressing plate 22 and the front pressing plate 23, when the top block 21 is at the highest position, the lower surface of the rear pressing plate 22 is lower than the lower surface of the front pressing plate 23, the lower surface of the front pressing plate 23 is lower than the cutting edge of the cutting knife 24, when the top block 21 is at the lowest position, the front pressing plate 22 and the rear pressing plate 23 can press the workpiece, the cutting edge of the cutting knife 24 is located below the lower surfaces of the two pressing blocks, so that when the cutting die works, the lower surface of the rear pressing plate 22 is firstly pressed on the front part of the blank 6 to fix the front part of the blank 6, and then the front pressing plate 23 fixes the rear part of the blank 6, so that the cutting blade 24 cuts the blank, and the blank 6 is prevented from moving during the blanking process;

as shown in fig. 2, 3 and 4, a material moving rod 25 is disposed at one end of the front pressing plate 23 away from the rear pressing plate 22, the material moving rod 25 includes a guide tube 251 and a support leg 252 disposed in the guide tube 251 and capable of moving along the length direction of the guide tube 251, a material moving spring 253 is disposed in the guide tube 251, a counter bore is axially formed in the support leg 252, one end of the material moving spring 253 abuts against the bottom of the guide tube 251, the other end abuts against the bottom of the counter bore, a rubber head 254 is fixed at the outer end of the support leg, and when the top block 21 is at the highest position, the rubber head 254 is higher than the lower surface of the rear pressing plate 22 and lower than the lower surface of the front pressing plate 23.

The end of the supporting leg 252 abutting against the material moving spring 253 extends outward to form a first outward flange 256, and the opening of the guide tube 251 extends inward to form a first inward flange 255, so as to prevent the supporting leg 252 from sliding out of the guide tube 251.

As shown in fig. 2, one end of the pipe sleeve away from the pipe orifice is hinged to the front material pressing plate 23 through a hinge shaft 27, specifically, one side of the front material pressing plate away from the rear material pressing plate is provided with an accommodating cavity 231, the top of the guide pipe 251 is hinged to the top of the accommodating cavity 231 through the hinge shaft 27, in order to separate the cut blank 6 by the material moving rod 25, a side wall of the accommodating cavity 231 close to the rear material pressing plate 23 is provided with a ball cavity 232, a ball 233 is arranged in the ball cavity, the ball 233 passes through the side wall of the guide pipe 251, and when the support leg 252 moves upwards to a limit position, the end of the ball 233 can abut against the side wall of the support leg 252, specifically, a material pushing spring 234 is arranged in the ball cavity 232, one end of the material pushing spring 234 abuts against the ball 233, the side wall of the support leg is provided with an accommodating groove 259 at the bottom end of which is sealed, when the support leg is in the lower limit position, the outer end of the pin 233 is a wedge-shaped head, when the leg 252 moves upward, the sealing end of the bottom end of the accommodating groove 259 abuts against the slope surface of the wedge-shaped head of the pin 233, so that the pin 233 moves into the pin cavity 232, in order to prevent the leg 252 from rotating during the movement, a guide groove 258 is formed in the side wall of the leg 252, a guide key 257 is formed on the inner wall of the guide tube 251, the guide key 157 is disposed in the guide groove 258, and the guide key 257 can slide along the guide groove 258, during the operation, when the leg 252 moves into the guide tube 252, the wedge-shaped head of the pin 233 contacts with the closed end of the accommodating groove 259 through the slope, the pin is pushed into the pin cavity 232 through the closed end, and the pin 233 abuts against the side wall of the leg 252, at this time, the leg 252 presses against the blank, when the blank 6 is cut, the pin 233 pops outward, and pushes the cut blank to continue to move forward, and (5) separating the blanks.

Elastic guide units 26 are arranged between the ejector block 21 and the rear pressure plate 22 as well as between the ejector block and the front pressure plate 23, each elastic guide unit 26 comprises a guide pillar 261 and a guide sleeve 262, the guide pillar 261 is inserted into the guide sleeve 262, a pressure spring 263 is arranged in the guide sleeve 262, one end of the pressure spring 263 is abutted against the end of the guide pillar 261, and the other end of the pressure spring 263 is abutted against the bottom of the guide sleeve 262. The top end of the guide sleeve 262 is fixedly connected with the top block 21, the bottom end of the guide column 261 is fixed with the rear pressure plate 22 or the front pressure plate 23, the guide column 261 is fixedly arranged at four corners of the rear pressure plate 22 and the front pressure plate 23, the bottom end of the guide sleeve 262 extends inwards to form a second inward flange 264, and the top end of the guide column 263 extends outwards to form a second outward flange 265.

In operation, after the blank 6 passes through the cutting unit and is conveyed for a predetermined length, the blank is to be cut and disposed on the cutting female die 24, the hydraulic press of the cutting unit 2 starts to work to control the ejector block 21 to move downwards, so that the rear pressing plate 22 presses the rear part of the blank 6 downwards first, the ejector block 21 continues to descend, the rubber head 254 of the material moving rod 25 presses the front part of the blank, the ejector block 21 continues to descend to enable the support leg 252 to move towards the guide pipe 251, the marble 233 moves towards the marble cavity 232, the end part of the marble 233 abuts against the side wall of the support leg 252 until the front pressing plate 23 presses the blank 6, the cutting knife 24 performs blanking and cutting on the blank 6 to cut off the blank 6, then the ejector block moves upwards to drive the front pressing plate 23 to lift upwards, so that the cut blank loses the pressing fixation of the front pressing plate 23, and simultaneously, as the blank 6 is cut off, the marble 233 pops outwards under the action of the material pushing spring 234, the supporting legs 252 are pushed to rotate the material moving rod 25, the supporting legs 252 extend out of the guide pipe 251 to drive the cut blanks to move forwards, the blanks 6 which are originally connected into a whole are separated from each other, and the top block 21 continues to rise until the highest position is reached. The rear pressing plate 22 is lifted to complete a blanking operation, the blanked and separated blank enters a punching and blanking unit to be punched and blanked and formed, and then the material moving rod 25 is restored under the action of gravity.

The punched blank 6 is separated by the material moving rod 25 so as to facilitate the subsequent forming, detecting and collecting work of the processing workpiece of the blank.

The structures of the composite die possibly used in the blank punching and blanking unit and the backing plate and the guide unit possibly included in the blanking unit are the prior art, and are not described herein again.

The working time of the cutting unit and the punching and blanking unit can be controlled by timing equipment according to the length of a required stripper plate and the feeding speed, or the blank 6 is judged whether to reach a preset position by visual identification equipment, then the working start and stop of the hydraulic press are controlled, and a groove or a concave die capable of accommodating the cutting edge of the cutting knife 24 is arranged under the cutting knife 24 of the cutting unit.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a blanking press lines for car support piece which characterized in that: the device comprises a conveying unit (1), wherein the conveying unit (1) conveys blanks to a cutting unit (2) and a punching and blanking unit (3) which are used for processing the blanks (6) in sequence;

the cutting unit (2) comprises a rear pressure plate (22) capable of moving up and down, a front pressure plate (23) and a cutting knife (24) which is arranged between the two pressure plates and capable of moving up and down, when the blank needs to be cut, the rear pressure plate (22) and the front pressure plate (23) are sequentially pressed on the blank, and then the cutting knife (24) cuts the blank;

the cutting unit (2) further comprises a material moving rod (25), the material moving rod (25) comprises a guide pipe (251) with one closed end, a supporting leg (252) capable of extending out of or being inserted into the guide pipe (251) and a material moving spring (253), the material moving spring (253) is arranged in the guide pipe (251), the material moving spring (253) and the guide pipe (251) are coaxially arranged, and one end of the material moving spring is abutted against the supporting leg (252);

a first inner flanging extends inwards from the pipe orifice of the guide pipe (251), a first outer flanging (256) extends outwards from the side wall of the supporting leg (252), and when the supporting leg (252) moves outwards to the limit position relative to the guide pipe (251), the first outer flanging is abutted against the first inner flanging;

an accommodating cavity (231) is formed in one end, away from the rear pressure plate (22), of the front pressure plate (23), the top of the guide pipe (251) is hinged to the accommodating cavity (231), a marble cavity (232) is formed in the side wall, close to the rear pressure plate (22), of the accommodating cavity (231), marbles (233) are arranged in the marble cavity, the marbles (233) penetrate through the side wall of the guide pipe (251), and when the support leg (252) moves upwards to the limit position, the end part of each marbles (233) can abut against the side wall of the support leg (252);

a guide key (257) is fixedly arranged in the guide pipe (251), a guide groove (258) is fixedly arranged on the supporting foot, and the guide key (257) is arranged in the guide groove (258);

the side wall of the supporting leg is provided with a containing groove (259) with a sealed bottom end, and when the supporting leg is at a lower limit position, the marble (233) is positioned in the containing groove (259);

the outer end of the marble (233) is a wedge-shaped head, when the supporting leg (252) moves upwards, the sealing position at the bottom end of the accommodating groove (259) is abutted against the slope surface of the wedge-shaped head of the marble (233), so that the marble (233) moves towards the marble cavity (232);

a material pushing spring (234) is arranged in the marble cavity (232), and one end of the material pushing spring (234) abuts against the marble (233).

2. A blanking and stamping line for automotive supports according to claim 1, characterised in that: one end of the supporting foot (252) far away from the front pressure plate (23) is provided with a rubber head (254).

3. A blanking and stamping line for automotive supports according to claim 1, characterised in that: the cutting unit (2) further comprises an ejector block (21), the cutting knife (24) and the ejector block (21) move synchronously, the ejector block (21) is connected with the two pressing plates through an elastic guide unit (26), the elastic guide unit (26) comprises a guide pillar (261) and a guide sleeve (262), a pressing spring (263) is arranged in the guide sleeve (262), the guide sleeve (262) is fixedly connected with the ejector block (21), the guide pillar (261) is fixedly connected with the pressing plates, one end of the pressing spring (263) abuts against the top end of the guide pillar (261), and the other end of the pressing spring (263) abuts against the ejector block (21).