CN214866774U

CN214866774U - Automatic conveying device in multi-station cold-punching die sheet metal working procedure piece die

Info

Publication number: CN214866774U
Application number: CN202022863157.0U
Authority: CN
Inventors: 周国臣
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-11-26
Anticipated expiration: 2030-12-03

Abstract

Automatic conveyer in multistation cold punching mould panel beating process piece mould, the utility model discloses automatic conveyer of panel beating process piece includes: the device comprises two inclined wedge transverse driving mechanisms respectively arranged at two ends of a multi-station cold punching die, four time-delay lifting driving mechanisms respectively arranged at four corners of the multi-station cold punching die, and two stepping longitudinal driving mechanisms respectively arranged at two sides of the multi-station cold punching die. The invention has the positive effects that: the equipment investment cost is low. The material utilization rate is improved, the process pieces are automatically conveyed, no process piece carrying personnel exist, the relative safety is high, the production cost is reduced, and the product quality is stable.

Description

Automatic conveying device in multi-station cold-punching die sheet metal working procedure piece die

The technical field is as follows:

the utility model belongs to the metal stamping field, concretely relates to use stamping die automation in the cold punching of car panel beating.

Background art:

in the die for producing the automobile sheet metal part by stamping, the stamping die is divided into an automatic die and a manual line die according to a process part transmission mode. The automatic line die comprises a multi-machine servo beam conveying production line, a progressive die and a multi-station progressive die. The handline die includes a single-process die and a multi-station die.

The multi-machine servo beam conveying production line comprises a unstacker, a feeding robot, a plate cleaning machine, a conveying beam, a plurality of servo presses and the like, and is mainly used for producing outer covering parts such as four doors, two covers, a top cover, a side wall and the like of a passenger car. The required equipment is more, and the whole investment is large.

The progressive die production line and the single-set multi-station die are connected by a material belt through a multifunctional uncoiling feeder, and the feeder pushes the process pieces to be transmitted between the processes to carry out continuous production. Due to the existence of the material belt, the material utilization rate is reduced, and raw materials are wasted.

A multi-station progressive die is characterized in that a set of servo transmission mechanism is arranged on the basis of joint installation of a plurality of process dies of a single-process die, auxiliary process pieces are sequentially transmitted among all processes, the first process step feeding adopts robot feeding and is sent to an appointed position through a transmission belt, and a piece supporting hand is adopted to sequentially transmit the process pieces through fixed step distances, so that continuous automatic production is realized. The multi-station progressive die is suitable for producing middle-sized and small-sized parts, and has the defects of high equipment investment cost and low cost performance of finished parts due to the fact that the multi-station progressive die is only suitable for producing middle-sized parts.

In the manual line die, each process needs one press and one to four persons for operation (the number of personnel refers to the size of the product), the product generally needs 2 to 6 processes, the number of required personnel is large, the number of the presses is large, each process piece needs to transmit logistics to support production, the production cost is high, and the product quality control and production safety level are low.

The utility model has the following contents:

the utility model aims at providing an automatic conveyer in multistation cold punching mould panel beating process piece mould is used in the conveying of panel beating part stamping line process piece station, overcomes aforementioned not enough that current station transfer mode exists.

The utility model discloses automatic conveyer in sheet metal working procedure spare mould includes:

the multi-station die comprises two inclined wedge transverse driving mechanisms respectively arranged at two ends of a multi-station die body, four time-delay lifting driving mechanisms respectively arranged at four corners of the multi-station die body, and two step pitch longitudinal driving mechanisms respectively arranged at two sides of the multi-station die body.

Each inclined wedge transverse driving mechanism comprises:

an upper wedge die driving block fixed on an upper bottom plate body of the die and facing downwards, two lower die sliding blocks positioned on two sides of the upper wedge die driving block, an intermittent driving guide plate group positioned between the upper wedge die driving block and the lower die sliding blocks, a lower die sliding block return nitrogen spring or an air cylinder or a hydraulic cylinder horizontally arranged between the lower die body of the die and the lower die sliding blocks, a lower die sliding block stroke limiting block fixed on the lower die body of the die, a floating block vertically moving assembled on the upper part of the lower die sliding block, a floating block limiting screw penetrating through the floating block and assembled on the lower die sliding block, sliding block moving guide plates horizontally fixed on two sides of the lower die sliding block and in sliding fit with a guide surface on the lower die body of the die, and a floating air cylinder between the floating block and the lower die sliding block;

the intermittent driving guide plate group comprises two opposite intermittent driving guide plates, one of the intermittent driving guide plates is locked on the wedge upper die driving block, the other intermittent driving guide plate is locked on the lower die sliding block, opposite surfaces of the two intermittent driving guide plates in the intermittent driving guide plate group comprise a section of vertical surface and a section of driving surface which are mutually connected and gradually incline to the carrier, the vertical surface of the intermittent driving guide plate locked on the wedge upper die driving block is upward, the vertical surface of the intermittent driving guide plate locked on the lower die sliding block is downward, and the driving surfaces of the opposite intermittent driving guide plates after installation are mutually parallel.

Wherein the angle of the inclined driving surface on the stop driving guide plate is preferably 15 degrees or 30 degrees or 45 degrees.

Each time delay lifting driving mechanism comprises:

the device comprises a sliding block, sliding guide plates, a sliding block uplink limiting baffle, a cylinder, a sliding block downlink limiting lug and a sliding block downlink limiting stop block, wherein the sliding block is assembled on a die bottom plate main body and acts as a floating block in a wedge transverse driving mechanism, the sliding guide plates are locked at four corners of the sliding block, the sliding block uplink limiting baffle is locked above the sliding block of the die bottom plate main body, the cylinder is arranged between the sliding block uplink limiting baffle and the sliding block, the sliding block downlink limiting lug is embedded on the sliding block, and the sliding block downlink limiting stop block is locked below a sliding block of an upper die body.

Each step longitudinal driving mechanism comprises:

a longitudinal beam positioned on the moving direction of a working piece on the side surface of the die, a connecting component between the two ends of the longitudinal beam and a floating block in the wedge transverse driving mechanism, a slideway fixed on the longitudinal beam, a row of piece supporting hands arranged corresponding to working piece stations, a piece supporting hand connecting plate for fixing the piece supporting hands in rows, a piece supporting hand driving mechanism arranged on the longitudinal beam, a piece supporting hand stroke limiting plate fixed on the longitudinal beam,

the support hand driving mechanism is a combination of a motor, a screw rod and a screw rod nut plate, or a combination of a pneumatic motor or a hydraulic motor, a screw rod and a screw rod nut plate, or an air cylinder and a hydraulic cylinder.

The motor, the screw rod and the screw rod nut plate are combined by a motor fixing plate welded or locked on a longitudinal beam, a motor arranged on the motor fixing plate, a screw rod assembled on the longitudinal beam and driven by the motor, a nut plate assembled on the screw rod and a slide block fixed on the nut plate, the slide block is connected with a support piece hand connecting plate and is in convex-concave sliding fit with a slide way on the longitudinal beam, and a power switch of the used motor is controlled by an electric controller of a punching machine.

The utility model has the advantages that: automatic transmission among multiple working procedures of stamping parts is realized by the aid of a mechanical device and a motor (or an air cylinder).

Compare the transfer machine mould, the utility model discloses only need the current single process equipment of punching press producer can realize semi-automatization production, need not purchase equipment once more, save the project input greatly. Convenient maintenance and low operation cost.

Compare the modulus of continuity conveying, the utility model discloses in not having the material area, improved material utilization rate, reduction in production cost.

Compare manual line mould: all processes are realized on one set of die, only one press and 2 operators are needed, and the process pieces are automatically transmitted. The manual production participation is reduced, the number of the pressing machines is small, the logistics transmission of the process parts is reduced, the production efficiency is improved, and the production cost is reduced. Personnel do not participate in the transport of process pieces, and relative security is high, and process pieces automatic handling, product quality are stable.

Drawings

Fig. 1 is an overall perspective view of the present invention.

Fig. 2 is a front view of the middle transverse driving wedge mechanism of the present invention.

Fig. 3 is a perspective view of the middle delay lifting driving mechanism of the present invention.

Fig. 4 is a front sectional view of the middle delay lifting driving mechanism of the present invention.

Fig. 5 is a side view and sectional view of the middle delay lifting driving mechanism of the present invention.

Fig. 6 is a front view of the middle step driving beam assembly of the present invention.

Fig. 7 is a view of the middle step driving beam assembly of the present invention.

Fig. 8 is the utility model discloses well sheet metal working procedure piece conveying step pitch picture in the mould.

Detailed Description

Referring to fig. 1, the utility model discloses an automatic conveyer in multistation cold punching mould panel beating process piece mould includes: the device comprises two inclined wedge transverse driving mechanisms 1 respectively installed at two ends of a multi-station cold punching die, four time-delay lifting driving mechanisms 2 respectively installed at four corners of the multi-station cold punching die, and two stepping longitudinal driving mechanisms 3 respectively installed at two sides of the multi-station cold punching die.

Referring to fig. 2, the lateral driving mechanism 1 for each wedge of the present invention includes:

an upper wedge die driving block 1-1 fixed on a die bottom plate body and facing downwards, two lower die slide blocks 1-3 positioned at two sides of the upper wedge die driving block 1-1, an intermittent driving guide plate group 1-2 positioned between the upper wedge die driving block 1-1 and the lower die slide blocks 1-3, a return nitrogen spring 1-4 of the lower die slide blocks 1-3, a stroke limiting block 1-5 of the lower die slide blocks 1-3, a floating block 1-6 assembled on the upper parts of the lower die slide blocks 1-3 and moving vertically, a floating block limiting screw 1-7 assembled on the lower die slide blocks 1-3 by penetrating through the floating block 1-6, slide block moving guide plates 1-8 fixed at two sides of the lower die slide blocks 1-3 in a horizontal direction, and a floating nitrogen cylinder 1-9 between the floating block 1-6 and the lower die slide blocks 1-3, a driving output plate 1-10 which extends transversely is fixed on the floating block 1-6,

The intermittent drive guide plate group 1-2 comprises two opposite intermittent drive guide plates, one of the intermittent drive guide plates is locked on the upper die drive block 1-1 of the inclined wedge, the other intermittent drive guide plate is locked on the lower die slide block 1-3, the opposite surfaces of the two intermittent drive guide plates in the intermittent drive guide plate group comprise a section of vertical surface and a section of drive surface which is vertically and gradually inclined to a carrier, the vertical surface of the intermittent drive guide plate locked on the upper die drive block 1-1 of the inclined wedge is upward, the vertical surface of the intermittent drive guide plate locked on the lower die slide block 1-3 is downward, and the drive surfaces of the opposite intermittent drive guide plates are parallel after installation. The drive surface angle can be set at 15 deg. or 30 deg. or 45 deg. according to different stroke requirements.

The return nitrogen spring 1-4 is horizontally arranged between the die body and the lower die slide block 1-3, and the return nitrogen spring 1-4 can be driven by a cylinder or a hydraulic cylinder. The slide block moving guide plates 1-8 are in sliding fit with the guide surfaces on the die.

Referring to fig. 3, 4 and 5, in the present invention, each of the delay lifting driving mechanisms 2 includes:

the device comprises a slide block 2-1 vertically inserted into a main body 4 of an upper bottom plate of a mould in a movable fit manner, a sliding guide plate 2-2 locked at four corners of the slide block 2-1, a limit cover plate 2-6 locked at an upper port of a slide block cavity of the main body of the upper bottom plate of the mould, a nitrogen cylinder 2-3 between the limit cover plate 2-6 and the slide block 2-1, a limit lug 2-4 embedded at the middle upper part of the slide block, a limit stop block 2-5 locked at a lower port of the slide block cavity of the upper mould body 4, and a guide plate 2-7 locked at the lower end of the slide block 2-1 and contacted with a driving output plate 1-10 of a wedge transverse driving mechanism and sliding

Referring to fig. 6 and 7, the stepping longitudinal driving mechanism 3 of the present invention comprises:

a longitudinal beam 3-1 positioned in the moving direction of a working piece on the side surface of the die, a connecting plate 3-2 between two ends of the longitudinal beam and a driving output plate 1-10 in a wedge transverse driving mechanism, a convex slideway 3-3 fixed on the longitudinal beam 3-1, a row of supporting piece hands 3-10 arranged corresponding to the working piece working position, supporting piece hand connecting plates 3-12 for fixing the supporting piece hands in rows, and a motor fixing plate 3-9 welded or locked on the longitudinal beam 3-1, the device comprises motors 3-7 arranged on motor fixing plates 3-9, lead screws 3-6 assembled on longitudinal beams 3-1 and driven by the motors 3-7 through speed reducing mechanisms, nut plates 3-8 assembled on the lead screws 3-6, sliding blocks 3-5 fixed on the nut plates, and part supporting hand stroke limiting plates 11 fixed on the longitudinal beams 3-1 and touching the sliding blocks 3-5. The sliding block 3-5 is provided with a concave slideway 3-4 matched with the convex slideway 3-3 on the longitudinal beam 3-1, a power switch of the used motor 3-7 is controlled by an electric controller of the punching machine,

the working principle of the embodiment is as follows:

referring to fig. 2, the piece 1-1 and the piece 1-2 are mounted on an upper bottom plate of a mold, and along with the vertical opening and closing of the mold, under the action of an inclined surface of the piece 1-2 and the piece 1-4 (a return nitrogen cylinder), the piece 1-3 (a lower mold sliding block) drives the piece 1-6 (a floating block) to do linear reciprocating motion in the X direction (referring to fig. 7).

Referring to fig. 3, 4 and 5, the delay lifting driving mechanism is installed on the upper bottom plate main body of the mold, and as the mold is opened and closed up and down, the piece 2-1 (slide block) compresses the upper piece 1-6 (floating block) of the wedge transverse driving mechanism to reciprocate up and down to drive the stepping longitudinal driving mechanism to reciprocate in the Z direction, and the lifting and descending of the process piece are realized through the piece 3-10-piece supporting hand (refer to fig. 4). Because the initial pressure of the nitrogen cylinder (refer to figure 3) of the delayed lifting driving mechanism 2-3 is greater than the final pressure of the upper part 1-9 (refer to figure 2) of the inclined wedge transverse driving mechanism, the nitrogen cylinder on the inclined wedge transverse driving mechanism is firstly compressed, and then the nitrogen cylinder on the delayed lifting driving mechanism is compressed, so that the delay function is realized.

Referring to FIGS. 6 and 7, members 3-5 and 3-10 are mounted on member 3-4, member 3-4 is slidably coupled to member 3-3, member 3-3 is coupled to member 3-1, member 3-8 is coupled to member 3-5, and members 3-7, 3-6, 3-9, and 3-11 are all mounted on member 3-1. Piece 3-1 is connected to piece 3-2 and piece 3-2 is connected to piece 1-6. The worm is driven by the motor to rotate positively and negatively, the moving piece 3-5 is driven by the nut plate to do reciprocating motion in the Y direction (see figure 7), and the working piece 5 is driven to move from the front working procedure to the rear working procedure as the moving piece 3-10 is arranged on the moving piece 3-5 through the nut plate 3-12 and the moving piece 3-10 is also driven to do reciprocating motion in the Y direction.

The working process of the embodiment is as follows:

referring to fig. 1, 2, 3, 6 and 8, the upper die of the die starts to move downwards, the delayed lifting driving mechanism compresses the floating block on the wedge transverse driving mechanism, the nitrogen cylinder is completely compressed (refer to fig. 2, 1-9), the working piece is driven to descend, the working piece 5 falls on the molded surface of the lower die of the die, the upper die continues to move downwards, the delayed lifting driving mechanism 2-3 nitrogen cylinder (refer to fig. 3) and the wedge transverse driving mechanism (refer to fig. 2, 1-3) slide block moves towards the outer side of the die along the X direction, the piece supporting hand (refer to fig. 4, 3-10) on the stepping longitudinal driving mechanism is driven to separate from the working piece 5, the upper die continues to move downwards until the stroke of the delayed lifting driving mechanism 2-3 nitrogen cylinder (refer to fig. 3) is completely compressed, at this time, the die works to the bottom dead center, and completes the stamping work, at this time, the motor of the stepping longitudinal driving mechanism works to drive the workpiece holding hand (see fig. 4, 3-10) to return to the workpiece position of the previous process to wait for taking the workpiece.

An upper die of the die starts to move upwards from a bottom dead center, a sliding block of a transverse wedge driving mechanism (see 1-3 in figure 2) moves towards the inner side of the die along the X direction to drive a piece supporting hand (see 3-10 in figure 4) on a stepping longitudinal driving mechanism to clamp a working piece 5, the upper die continues to move upwards, a nitrogen cylinder release stroke of a floating block on the transverse wedge driving mechanism floats, the piece supporting hand (see 3-10 in figure 4) on the stepping longitudinal driving mechanism is driven to support the working piece 5, the upper die continues to move upwards, a nitrogen cylinder (see figure 3) of a delayed lifting driving mechanism component 2-3 completely releases the stroke, at the moment, the motor of the stepping longitudinal driving mechanism works to drive the piece supporting hand (see 3-10 in figure 4) and the working piece 5 to the next station, and the plate is manually placed on the first station to wait for the next stamping. And after the finished products in the last procedure are punched and separated, the finished products enter a finished product collecting box through a slideway. The motor signal is controlled by the flywheel angle of the stamping device. By the above operation, the punching process piece 5 is automatically conveyed in the die. Such a mould is a semi-automatic production line, since the first station is fed by a person. A station can also use a robot to feed materials, and the production line can also realize full-automatic production.

Claims

1. Automatic conveyer in multistation cold punching mould panel beating process spare mould, characterized by: the multi-station die comprises two inclined wedge transverse driving mechanisms respectively installed at two ends of a multi-station die body, four time-delay lifting driving mechanisms respectively installed at four corners of the multi-station die body, and two step pitch longitudinal driving mechanisms respectively installed at two sides of the multi-station die body.

2. The automatic conveying device in the multi-station cold stamping die sheet metal working procedure die as claimed in claim 1, is characterized in that: each slide wedge transverse driving mechanism comprises: an upper wedge die driving block fixed on an upper bottom plate body of the die and facing downwards, two lower die sliding blocks positioned on two sides of the upper wedge die driving block, an intermittent driving guide plate group positioned between the upper wedge die driving block and the lower die sliding blocks, a lower die sliding block return nitrogen spring or an air cylinder or a hydraulic cylinder horizontally arranged between the lower die body of the die and the lower die sliding blocks, a lower die sliding block stroke limiting block fixed on the lower die body of the die, a floating block vertically moving assembled on the upper part of the lower die sliding block, a floating block limiting screw penetrating through the floating block and assembled on the lower die sliding block, sliding block moving guide plates horizontally fixed on two sides of the lower die sliding block and in sliding fit with a guide surface on the lower die body of the die, and a floating air cylinder between the floating block and the lower die sliding block;

3. The automatic conveying device in multi-station cold-punching die sheet metal working procedure die as claimed in claim 2, is characterized in that: the angle of the inclined driving surface on the stop driving guide plate is 15 degrees or 30 degrees or 45 degrees.

4. The automatic conveying device in the multi-station cold stamping die sheet metal working procedure die as claimed in claim 1, is characterized in that: each time delay lifting driving mechanism comprises: the device comprises a sliding block, sliding guide plates, a sliding block uplink limiting baffle, a cylinder, a sliding block downlink limiting lug and a sliding block downlink limiting stop block, wherein the sliding block is assembled on a die bottom plate main body and acts as a floating block in a wedge transverse driving mechanism, the sliding guide plates are locked at four corners of the sliding block, the sliding block uplink limiting baffle is locked above the sliding block of the die bottom plate main body, the cylinder is arranged between the sliding block uplink limiting baffle and the sliding block, the sliding block downlink limiting lug is embedded on the sliding block, and the sliding block downlink limiting stop block is locked below a sliding block of an upper die body.

5. The automatic conveying device in the multi-station cold stamping die sheet metal working procedure die as claimed in claim 1, is characterized in that: each step longitudinal driving mechanism comprises: a longitudinal beam positioned on the moving direction of a working piece on the side surface of the die, a connecting component between the two ends of the longitudinal beam and a floating block in the wedge transverse driving mechanism, a slideway fixed on the longitudinal beam, a row of piece supporting hands arranged corresponding to working piece stations, a piece supporting hand connecting plate for fixing the piece supporting hands in rows, a piece supporting hand driving mechanism arranged on the longitudinal beam, a piece supporting hand stroke limiting plate fixed on the longitudinal beam,

the support hand driving mechanism is a motor, a screw rod and a screw nut plate combination, or a pneumatic motor or a hydraulic motor, a screw rod and a screw nut plate combination, or an air cylinder or a hydraulic cylinder.

6. The automatic conveying device in the multi-station cold-punching die sheet metal working procedure die is characterized in that: the motor, the screw rod and the screw rod nut plate are combined by a motor fixing plate welded or locked on a longitudinal beam, a motor arranged on the motor fixing plate, a screw rod assembled on the longitudinal beam and driven by the motor, a nut plate assembled on the screw rod and a slide block fixed on the nut plate, the slide block is connected with a support piece hand connecting plate and is in convex-concave sliding fit with a slide way on the longitudinal beam, and a power switch of the used motor is controlled by an electric controller of a punching machine.