CN217475253U - Integrated processing device for extruding, hot straightening and punching - Google Patents

Abstract

The utility model belongs to the technical field of plate spring processing equipment, and relates to an integrated processing device for extruded edge thermal straightening and punching, which comprises a punching machine, wherein a punching die is arranged on the punching machine, and a length positioning device for positioning the length direction of a workpiece is arranged on the punching machine corresponding to the punching position; a width positioning and edge extruding straightening device for positioning and extruding and straightening edges in the width direction is arranged on the punch corresponding to the punching position; the width positioning, edge extruding and straightening device comprises a hydraulic driving mechanism and an extruding driving mechanism. The utility model discloses with crowded limit, hot alignment and the three unification that punches a hole of heat, saved energy consumption, equipment and the operating personnel of the local heating that punches a hole of heat and side cut, for the cost is saved to the enterprise, and energy saving and emission reduction has been realized.

Description

Integrated processing device for extruding, hot straightening and punching

Technical Field

The utility model relates to an crowded hot alignment in limit and integrated processingequipment that punches a hole belongs to leaf spring processing equipment technical field.

Background

Leaf springs (hereinafter referred to as leaf springs) are commonly used in wheel vehicle suspensions, and are one of the oldest spring forms, which dates back to the middle ages and are also the spring forms that are currently used more widely.

The production process flow of the common plate spring is as follows: material breaking-center hole processing-sheet end processing-heat treatment-shot blasting-

And (5) coating and assembling. In recent years, with the increase of the technological requirements of the leaf spring, a leaf spring trimming process is added in the flow of the traditional leaf spring production process, namely, the two sides of the width of the leaf spring in the length direction of the central hole position of the leaf spring are symmetrically trimmed by 1-2 mm (according to the requirements), so that the use requirements of the leaf spring are met. Therefore, the process flow of the plate spring aiming at the high quality requirement is as follows: material cutting, center hole processing, edge cutting, sheet end processing, heat treatment, shot blasting, coating and assembling. There are generally two methods for center hole machining:

and (4) drilling and punching, wherein cold punching is adopted for the reed with a thinner thickness (the thickness B of the reed is less than or equal to 13mm), and drilling is adopted for the reed with a thicker thickness (the thickness B of the reed is more than or equal to 14 mm). Due to the fact that the efficiency of drilling is low, the production labor is large, and the process of local heating and punching is developed in recent years, and is called hot punching for short. The trimming processing method adopts a milling machine to carry out machining treatment.

The processing raw material of the plate spring, namely spring flat steel, can generate bending deformation in the steel rolling process or the heat treatment heating process, and is commonly called as lateral bending. In order to improve the appearance shape accuracy of the plate spring, a thermal straightening process is arranged after heat treatment and heating and before quenching and cooling, and the original lateral bending of steel and the lateral bending generated during heating are corrected to ensure the straightness of the plate spring.

In the current plate spring processing process, edge cutting, thermal punching and thermal alignment are carried out by three process steps, a plate spring raw material is subjected to thermal punching after being locally heated, the plate spring raw material enters a milling machine for edge cutting after being punched, then enters a quenching heating furnace for heating, and then is sent into an alignment machine for alignment, and then is subjected to quenching treatment after alignment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a crowded hot alignment of limit and integrated processingequipment that punches a hole, this crowded hot alignment of limit and integrated processingequipment that punches a hole will extrude limit, hot alignment and the three unification that punches a hole of heat, saved energy resource consumption, equipment and the operating personnel that hot punching a hole local heating and cut edge, for the enterprise saves the cost, and has realized energy saving and emission reduction.

The utility model discloses an integrated processing device for extruded edge hot straightening and punching, which comprises a punching machine, wherein a punching die is arranged on the punching machine, and a length positioning device for positioning the length direction of a workpiece is arranged on the punching machine corresponding to the punching position; a width positioning and extruding straightening device for positioning and extruding edges in the width direction and straightening is arranged at the position, corresponding to the punching position, on the punching machine; the width positioning and edge extruding straightening device comprises a hydraulic driving mechanism and an extruding driving mechanism.

In the machining process, a plate spring to be machined is placed on a punching die, then the left end and the right end of the plate spring to be machined are clamped by a length positioning device, meanwhile, the front side and the rear side of the plate spring to be machined are clamped, straightened and extruded by a width positioning and edge extruding straightening device, so that the plate spring meets the machining requirement, and finally, a punch of a punching machine works to complete punching. The equipment integrates the edge extrusion, the thermal straightening and the thermal punching, saves energy consumption, equipment and operators for the local heating and edge cutting of the thermal punching, saves the cost for enterprises, and realizes energy conservation and emission reduction. The punch provides punching power for the plate spring and serves as a basic frame body. The extrusion driving mechanism enables the plate spring to realize edge extrusion.

Preferably, the hydraulic driving mechanism comprises an installation bottom plate and two force arms, the middle parts of the two force arms are respectively connected with the installation bottom plate through supporting pin shafts, the bottom ends of the two force arms are respectively hinged with a cylinder body lug ring and a piston shaft lug ring of a driving oil cylinder, movable jaws are respectively fixed at the top ends of the two force arms, and the central position between the two movable jaws corresponds to the punching position of the punching die; the mounting base plate is fixed on the side surface of the punching machine; and extrusion straightening plates are respectively arranged at the positions of the two movable jaws corresponding to the punching positions of the punching die, and extrusion driving mechanisms are arranged at the positions corresponding to the extrusion straightening plates. The two movable jaws are arranged on the front side and the rear side of a lower die of the punching die. During alignment, the piston rod of the driving oil cylinder extends out to drive the two force arms to rotate by taking the supporting pin shaft as a center respectively, the top ends of the two force arms move towards the middle to drive the two movable jaws to clamp towards the middle, namely, the two movable jaws clamp two sides of the plate spring to be aligned in advance, then the extrusion oil cylinder on the extrusion driving mechanism continues to work to drive the two movable jaws to continue to move relatively, the edge of the plate spring is extruded through the extrusion alignment plate on the movable jaws, and finally alignment and edge extrusion of the plate spring are achieved.

Preferably, the extrusion driving mechanism comprises an extrusion oil cylinder, the extrusion oil cylinder is fixed on one movable jaw, the end part of a piston rod of the extrusion oil cylinder penetrates through the clamping key seat, the end part of the piston rod of the extrusion oil cylinder is fixedly connected with the clamping key in the clamping key seat, and the clamping key seat is fixedly connected with the other movable jaw. When the two movable jaws pre-straighten the plate spring, the piston rod of the extrusion oil cylinder is contracted under the action of external force of the driving oil cylinder, and when the plate spring needs to be straightened and edged, the piston rod of the extrusion oil cylinder is retracted, so that the movable jaws at two sides continue to move relatively, and the edge of the plate spring is squeezed through the extrusion straightening plate on the movable jaws. The size of the plate spring extrusion edge (trimming) is smaller, generally about 1-2 mm, the plate spring after being heated by heat treatment is easy to extrude the size required by trimming through external force extrusion due to the change of metallographic structure, and meanwhile, the plate spring extrusion edge (trimming) is extruded under the alignment state, so that the positioning error caused by side bending and secondary clamping of the plate spring is overcome, meanwhile, the edge extrusion (trimming) and the punching are successively completed in the same process under the alignment state, and the precision of the position of a central hole and the position degree of trimming is improved.

Preferably, the mounting base plate is further provided with a driving vertical slide rail, the driving vertical slide rail is provided with a driving slide block in sliding fit with the driving vertical slide rail, two sides of the driving slide block are respectively hinged with one end of the connecting rod, and the other ends of the two connecting rods are respectively hinged with the force arm at the same side. The arrangement of the driving vertical slide rail and the driving slide block enables all parts to form a connecting rod synchronization mechanism, and when the two movable jaws are restrained to be opened or clamped tightly, the center line of a crack between the two movable jaws is always unchanged and is superposed with the center line of the punched hole.

Preferably, a width limiting assembly is arranged between the two movable jaws and comprises a limiting ball seat and a limiting nut which are respectively fixed on the movable jaws at two sides, and a limiting screw rod is connected with the limiting nut in a threaded fit manner; the limiting ball seat is matched with the limiting screw rod through concave-convex spherical surfaces with the same radian. When the extrusion driving mechanism acts and the size requirement of the plate spring for edge extrusion (trimming) is met, the limiting screw can be tightly propped against the limiting ball seat to prevent the extrusion oil cylinder from continuing to shrink, and the plate spring is effectively prevented from being straightened and deformed due to overlarge pressure of the extrusion driving mechanism when the edge is extruded. The length of the limiting screw rod between the two movable jaws can be adjusted by rotating the limiting screw rod.

Preferably, the punching machine below the movable jaws is provided with an installation base, a straightening horizontal sliding rail is fixed on the installation base, and the movable jaws slide along the straightening horizontal sliding rail, so that the two movable jaws can clamp the plate spring towards the middle along a set track.

Preferably, the adjusting chuck is installed at one end, far away from the limiting ball seat, of the limiting screw in a matched mode, and the adjusting chuck is fixed on the movable jaw through threaded connection. The limit screw rod is adjusted through the matched thread of the limit nut to the extension length of the screw rod after the width of the required alignment is adjusted, and then the limit screw rod is fixed through the adjusting chuck to prevent the limit screw rod from being stressed and moving.

Preferably, the length positioning device comprises a length positioning mounting bracket fixed on the punching machine, a synchronizing mechanism is fixed on the length positioning mounting bracket, two ends of the synchronizing mechanism are respectively connected with a positioning baffle, a length positioning sliding seat is further connected onto the positioning baffle, and the length positioning sliding seat slides along a length positioning sliding rail fixed on the length positioning mounting bracket. The two positioning baffles correspond to the left side and the right side of the punching die respectively. During operation, the synchronous mechanism acts to drive the two positioning baffles to move towards the middle at the same time, and the central position of the plate spring is ensured to correspond to the punching position of the punching die.

Preferably, the synchronous mechanism comprises a synchronous gear box, a synchronous gear, a first synchronous rack and a second synchronous rack which are in meshing transmission with the synchronous gear are arranged in the synchronous gear box, and the first synchronous rack and the second synchronous rack are arranged on two sides of the synchronous gear; the two ends of the synchronous gear box are respectively provided with a left rack clamping seat and a right rack clamping seat, the left rack clamping seat is fixedly connected with one end of a synchronous rack penetrating through the synchronous gear box, and one end of the synchronous rack penetrates through the synchronous gear box and the right rack clamping seat; the right rack clamping seat is fixedly connected with one end of a second synchronous rack penetrating through the synchronous gearbox, and the other end of the second synchronous rack penetrates through the synchronous gearbox and the left rack clamping seat; the left rack clamping seat is fixedly connected with a left traction shaft, the right rack clamping seat is fixedly connected with a right traction shaft, and the left traction shaft and the right traction shaft are respectively connected with a positioning baffle; a length positioning cylinder is fixed on the synchronous gear box, and a piston shaft of the length positioning cylinder is fixedly connected with the right rack clamping seat. When the length positioning device works, the piston shaft of the length positioning cylinder acts to drive the right rack clamping seat to act, the right rack clamping seat acts to drive the synchronous rack II to act, the synchronous rack II acts to drive the synchronous gear to rotate, the synchronous gear rotates to drive the synchronous rack I and the synchronous rack II to synchronously move in the opposite direction for the same distance, and finally the left traction shaft and the right traction shaft drive the positioning baffle plates to synchronously move in the opposite direction for the same distance.

Preferably, the positioning baffle is fixedly connected with the left traction shaft and the right traction shaft through the locking unit; the locking unit comprises a locking block, a positioning baffle is fixedly connected with the locking block, an upper clamping block and a lower clamping block which are arranged up and down are arranged in a cavity in the middle of the locking block, the upper clamping block and the locking block are fixed through bolts, the lower clamping block is positioned below the upper clamping block, a locking screw penetrates through a threaded through hole in the upper clamping block and is connected with a threaded hole in the lower clamping block in a matched manner, and the top end of the locking screw is connected with a locking handle; the upper clamping block and the lower clamping block are locked on the left traction shaft and the right traction shaft in a matching way. The upper clamping block and the lower clamping block can be locked at the designated positions of the left traction shaft and the right traction shaft by rotating the locking handle, and only the locking handle needs to be rotated during locking; and can satisfy the requirement of different length leaf springs at the different positions of left side traction shaft and right side traction shaft through adjusting the latch segment locking, only need guarantee two latch segments fix draw the shaft with right side traction shaft's position symmetry can.

Compared with the prior art, the utility model beneficial effect who has is:

(1) the utility model integrates three procedures of the prior extruding edge (trimming), hot punching and hot alignment, carries out length positioning on the plate spring through the length positioning device, then carries out extruding edge (trimming), hot alignment and width positioning on the plate spring through the width positioning extruding edge aligning device, and drives the punching die to punch a hole on the center of the plate spring by the punching machine after the positioning, the alignment and the extruding edge (trimming) are finished; the plate spring is still in a high-temperature state after punching, quenching treatment can be carried out without reheating, energy consumption and operating personnel for local heating of hot punching are saved, cost is saved for enterprises, the significance of energy conservation and emission reduction is achieved, and the influence of repeated heating on the quality of the plate spring is avoided;

(2) the utility model carries out edge extrusion (edge cutting) in the pre-straightening state, improves the symmetry degree of two sides of the edge extrusion (edge cutting) position, and improves the precision of the plate spring;

(3) the utility model punches holes in the straightening and edge-extruding states, overcomes the positioning error caused by the lateral bending of the reed, improves the position precision of the central hole and the overall quality of the leaf spring;

(4) the utility model discloses two move the jaw and open or press from both sides when tight, two move the crack central line between the jaw unchangeable all the time, and coincide mutually with the central line that punches a hole, therefore, leaf spring to arbitrary width, guarantee pressing from both sides tight alignment, when crowded limit, the central line of leaf spring is identical with the vertical axis of the mould of punching a hole all the time, the device both had high pressure extrusion alignment function promptly, the centering locate function who also has width direction simultaneously, thereby guarantee that the centre bore of punching is located the central line of reed width, also can guarantee the central line symmetry of crowded limit size both sides and reed width, adapt to the leaf spring of multiple specification.

Drawings

FIG. 1 is a front view of an integrated apparatus for trimming, hot straightening and punching;

FIG. 2 is a top view of the integrated processing device for hot alignment and punching of the extruded edge;

FIG. 3 is a side view of an integrated processing device for hot alignment and punching of extruded edges;

FIG. 4 is a schematic view of the length positioning device;

FIG. 5 is a schematic view of a hydraulic drive mechanism;

FIG. 6 is a schematic view of a synchronization mechanism;

FIG. 7 is a schematic structural view of a width-positioning, edge-extruding and straightening device;

FIG. 8 is a schematic view of the extrusion drive mechanism;

FIG. 9 is a schematic view of the locking block;

fig. 10 is a schematic structural view of a width limiting assembly.

In the figure: 1. a punch press; 2. punching a die; 3. a length positioning device; 4. a width positioning, edge extruding and straightening device; 5. a plate spring;

3.1, a synchronous mechanism; 3.1-1, a synchronous gearbox; 3.1-2, length positioning cylinder; 3.1-3, synchronous gear; 3.1-4, synchronizing a first rack; 3.1-5, synchronous rack two; 3.1-6, a right rack clamping seat; 3.1-7, a right traction shaft; 3.1-8, a left traction shaft; 3.1-9, a left rack clamping seat;

3-1, length positioning and mounting a bracket; 3-2, positioning a slide rail in length; 3-3, a locking unit; 3-4, a length positioning sliding seat; 3-5, positioning a baffle plate;

3-3.1, locking block; 3-3.2, locking screw; 3-3.3, locking the handle; 3-3.4, an upper clamping block; 3-3.5, a lower clamping block;

4.1, a hydraulic driving mechanism; 4.1-1, moment arm; 4.1-2, supporting pin shafts; 4.1-3, connecting rod; 4.1-4, installing a bottom plate; 4.1-5, driving the oil cylinder; 4.1-6, driving the vertical slide rail; 4.1-7, driving the slide block;

4.2, extruding a driving mechanism; 4.2-1, extruding the oil cylinder; 4.2-2, a clamping key seat; 4.2-3, a clamping key;

4.3, a width limiting component; 4.3-1, a limit screw; 4.3-2, a limit ball seat; 4.3-3, a limit nut; 4.3-4, adjusting the chuck;

4-1, moving the jaw; 4-2, straightening the horizontal sliding rail; 4-3, installing a base; 4-4, extruding and straightening the board.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1-10, the integrated processing device for hot alignment and punching of extruded edges of the present invention comprises a punching machine 1, a punching die 2 is disposed on the punching machine 1, a length positioning device 3 for positioning the length direction of a workpiece is disposed at a position corresponding to a punching position on the punching machine 1, and a width positioning extruded edge aligning device 4 for positioning and aligning the extruded edges in the width direction is further disposed at a position corresponding to the punching position on the punching machine 1; the width positioning and edge extruding straightening device 4 comprises a hydraulic driving mechanism 4.1 and an extruding driving mechanism 4.2.

In this embodiment:

the width positioning, edge extruding and straightening device 4 comprises a hydraulic driving mechanism 4.1 and an extruding driving mechanism 4.2; the hydraulic driving mechanism 4.1 comprises an installation bottom plate 4.1-4 and two force arms 4.1-1, the middle parts of the two force arms 4.1-1 are respectively connected with the installation bottom plate 4.1-4 through supporting pin shafts 4.1-2, the bottom ends of the two force arms 4.1-1 are respectively hinged with cylinder body ear rings and piston shaft ear rings of driving oil cylinders 4.1-5, movable jaws 4-1 are respectively fixed at the top ends of the two force arms 4.1-1, and the central position between the two movable jaws 4-1 corresponds to the punching position of the punching die 2; the mounting base plates 4.1-4 are fixed on the side surface of the punch press 1; the positions of the two movable jaws 4-1 corresponding to the punching positions of the punching die 2 are respectively provided with an extrusion straightening plate 4-4, and the positions corresponding to the extrusion straightening plates 4-4 are provided with an extrusion driving mechanism 4.2. The two movable jaws 4-1 are arranged on the front side and the rear side of the lower die of the punching die 2; during alignment, a piston rod of the driving oil cylinder 4.1-5 extends out to drive the two force arms 4.1-1 to rotate respectively by taking the supporting pin shaft 4.1-2 as a center, the top ends of the two force arms 4.1-1 move towards the middle to drive the two movable jaws 4-1 to clamp towards the middle, namely, the two movable jaws 4-1 clamp and pre-align the two sides of the plate spring 5, then the driving mechanism 4.2 is extruded to drive the two movable jaws 4-1 to extrude the edge of the plate spring 5, and finally, the alignment and the edge extrusion of the plate spring 5 are realized.

The extrusion driving mechanism 4.2 comprises an extrusion oil cylinder 4.2-1, the extrusion oil cylinder 4.2-1 is fixed on one movable jaw 4-1, the end part of a piston rod of the extrusion oil cylinder 4.2-1 penetrates through the clamping key seat 4.2-2, the end part of the piston rod of the extrusion oil cylinder 4.2-1 is fixedly connected with the clamping key 4.2-3 in the clamping key seat 4.2-2, and the clamping key seat 4.2-2 is fixedly connected with the other movable jaw 4-1. When the two movable jaws 4-1 pre-straighten the plate spring 5, the piston rod of the extrusion oil cylinder 4.2-1 is contracted under the action of the external force of the driving oil cylinder 4.2-1, when the edge of the plate spring needs to be straightened and squeezed, the piston rod of the extrusion oil cylinder 4.2-1 is contracted, the movable jaws 4-1 on the two sides continuously move relatively, the edge of the plate spring 5 is squeezed through the extrusion straightening plate 4-4 on the movable jaw 4-1, the width edge squeezing value in the required length range of the plate spring 5 reaches the size requirement through the extrusion straightening plate 4-4, and the edge squeezing is completed. The size of the extruded edge (trimming) of the plate spring 5 is small, generally about 1-2 mm, the plate spring 5 after being heated by heat treatment is easy to extrude the required size of trimming through external force extrusion due to the change of metallographic structure, and the extruded edge (trimming) is in an alignment state, so that the positioning error caused by side bending and secondary clamping of the plate spring 5 is overcome, meanwhile, the extruded edge (trimming) and the punched hole are successively completed in the same process in the alignment state, and the precision of the position of a central hole and the position of trimming is improved. The extrusion oil cylinder 4.2-1 drives the movable jaw 4-1 to move for a short distance, and the normal work of the driving oil cylinder 4.1-5 cannot be influenced.

The mounting bottom plate 4.1-4 is also provided with driving vertical slide rails 4.1-6, the driving vertical slide rails 4.1-6 are provided with driving slide blocks 4.1-7 in sliding fit with the driving vertical slide rails, two sides of the driving slide blocks 4.1-7 are respectively hinged with one end of the connecting rods 4.1-3, and the other ends of the two connecting rods 4.1-3 are respectively hinged with the force arm 4.1-1 at the same side. The arrangement of the driving vertical slide rails 4.1-6 and the driving slide blocks 4.1-7 enables all the parts to form a connecting rod synchronization mechanism, and the movable jaw 4-1 is constrained to move symmetrically and oppositely all the time by taking the central line as a symmetry axis.

A width limiting component 4.3 is arranged between the two movable jaws 4-1, the width limiting component 4.3 comprises a limiting ball seat 4.3-2 and a limiting nut 4.3-3 which are respectively fixed on the movable jaws 4-1 at two sides, and a limiting screw 4.3-1 and the limiting nut 4.3-3 are connected in a matching way through threads; the limiting ball seat 4.3-2 is matched with the limiting screw rod 4.3-1 through concave-convex spherical surfaces with the same radian. When the two movable jaws 4-1 are pre-aligned, the limiting screw rod 4.3-1 cannot be abutted against the limiting ball seat 4.3-2, when the extrusion driving mechanism 4.2 acts and meets the size requirement of the edge extrusion (trimming) of the plate spring 5, the limiting screw rod 4.3-1 is abutted against the limiting ball seat 4.3-2 to prevent the extrusion oil cylinder 4.2-1 from continuing to shrink, and the plate spring 5 is effectively prevented from being aligned and deformed due to the overlarge pressure of the extrusion driving mechanism 4.2 during edge extrusion. The length of the limit screw 4.3-1 between the two movable jaws 4-1 can be adjusted by rotating the limit screw 4.3-1.

The punching machine below the movable jaw 4-1 is provided with an installation base 4-3, a straightening horizontal sliding rail 4-2 is fixed on the installation base 4-3, and the movable jaw 4-1 slides along the straightening horizontal sliding rail 4-2, so that the two movable jaws 4-1 can clamp the plate spring 5 towards the middle along a set track.

One end of the limiting screw 4.3-1, which is far away from the limiting ball seat 4.3-2, is provided with an adjusting chuck 4.3-4 in a matching way, and the adjusting chuck 4.3-4 is fixed on the movable jaw 4-1 through threaded connection. The extension length of the limiting screw 4.3-1 with the required alignment width adjusted by the limiting nut 4.3-3 matched screw thread is adjusted, and then the limiting screw 4.3-1 is fixed by adjusting the chuck 4.3-4 to prevent the limiting screw 4.3-1 from being stressed and displaced.

The length positioning device 3 comprises a length positioning mounting bracket 3-1 fixed on the punching machine 1, a synchronizing mechanism 3.1 is fixed on the length positioning mounting bracket 3-1, two ends of the synchronizing mechanism 3.1 are respectively connected with a positioning baffle 3-5, a length positioning sliding seat 3-4 is also connected on the positioning baffle 3-5, and the length positioning sliding seat 3-4 slides along a length positioning sliding rail 3-2 fixed on the length positioning mounting bracket 3-1. The two positioning baffles 3-5 respectively correspond to the left side and the right side of the lower die of the punching die 2. When the plate spring punching machine works, the synchronizing mechanism 3.1 acts to drive the two positioning baffle plates 3-5 to simultaneously move towards the middle by the same displacement, and the central position of the plate spring 5 is ensured to correspond to the punching position of the punching die 2.

The synchronous mechanism 3.1 comprises a synchronous gear box 3.1-1, a synchronous gear 3.1-3, a synchronous rack I3.1-4 and a synchronous rack II 3.1-5 which are engaged with the synchronous gear 3.1-3 and are driven by the synchronous gear 3.1-1 are arranged in the synchronous gear box 3.1-1, and the synchronous rack I3.1-4 and the synchronous rack II 3.1-5 are respectively arranged at two sides of the synchronous gear 3.1-3; the two ends of a synchronous gearbox 3.1-1 are respectively provided with a left rack clamping seat 3.1-9 and a right rack clamping seat 3.1-6, the left rack clamping seat 3.1-9 is fixedly connected with one end of a synchronous rack I3.1-4 penetrating through the synchronous gearbox 3.1-1, and the other end of the synchronous rack I3.1-4 penetrates through the synchronous gearbox 3.1-1 and the right rack clamping seat 3.1-6; the right rack clamping seat 3.1-6 is fixedly connected with one end of a synchronous rack II 3.1-5 penetrating through the synchronous gearbox 3.1-1, and the other end of the synchronous rack II 3.1-5 penetrates through the synchronous gearbox 3.1-1 and the left rack clamping seat 3.1-9; the left rack clamping seat 3.1-9 is fixedly connected with a left traction shaft 3.1-8, the right rack clamping seat 3.1-6 is fixedly connected with a right traction shaft 3.1-7, and the left traction shaft 3.1-8 and the right traction shaft 3.1-7 are respectively connected with a positioning baffle 3-5; the length positioning cylinder 3.1-2 is fixed on the synchronous gearbox 3.1-1, and a piston shaft of the length positioning cylinder 3.1-2 is fixedly connected with the right rack clamping seat 3.1-6. When the length positioning device works, the piston shaft of the length positioning cylinder 3.1-2 moves to drive the right rack clamping seat 3.1-6 to move, the right rack clamping seat 3.1-6 moves to drive the synchronous rack II 3.1-5 to move, the synchronous rack II 3.1-5 moves to drive the synchronous gear 3.1-3 to rotate, the synchronous gear 3.1-3 rotates to drive the synchronous rack I3.1-4 and the synchronous rack II 3.1-5 to move in the same distance in the opposite direction, and finally the left traction shaft 3.1-8 and the right traction shaft 3.1-7 drive the positioning baffle 3-5 to move in the same distance in the opposite direction.

The positioning baffle 3-5 is fixedly connected with the left traction shaft 3.1-8 and the right traction shaft 3.1-7 through the locking unit 3-3; the locking unit 3-3 comprises a locking block 3-3.1, a positioning baffle 3-5 is fixedly connected with the locking block 3-3.1, an upper clamping block 3-3.4 and a lower clamping block 3-3.5 which are arranged up and down are arranged in a cavity in the middle of the locking block 3-3.1, the upper clamping block 3-3.4 and the locking block 3-3.1 are fixed through bolts, the lower clamping block 3-3.5 is positioned below the upper clamping block 3-3.4, a locking screw rod 3-3.2 penetrates through a threaded through hole in the upper clamping block 3-3.3 and is matched and connected with a threaded hole in the lower clamping block 3-3.5, and the top end of the locking screw rod 3-3.2 is connected with a locking handle 3-3.3; the upper clamping blocks 3-3.4 and the lower clamping blocks 3-3.5 are locked on the left traction shaft 3.1-8 and the right traction shaft 3.1-7 in a matching way. The upper clamping blocks 3-3.4 and the lower clamping blocks 3-3.5 can be locked at the appointed positions of the left traction shaft 3.1-8 and the right traction shaft 3.1-7 by rotating the locking handle 3-3.3, and only the locking handle 3-3.3 needs to be rotated during locking; and the locking blocks 3-3.1 can be adjusted to be locked at different positions of the left traction shaft 3.1-8 and the right traction shaft 3.1-7, so that the requirements of the plate spring 5 with different lengths are met, and the two locking blocks 3-3.1 are ensured to be fixed at the positions of the left traction shaft 3.1-8 and the right traction shaft 3.1-7 symmetrically.

In the machining process, a plate spring 5 to be machined is placed on a lower die of a punching die 2, then the left end and the right end of the plate spring 5 to be machined are clamped tightly by a length positioning device 3, meanwhile, two force arms 4.1-1 of a hydraulic driving mechanism 4.1 drive two movable jaws 4-1 to clamp towards the middle, namely, the two movable jaws 4-1 clamp and pre-straighten the two sides of the plate spring 5, then an extrusion driving mechanism 4.2 drives two extrusion straightening plates 4-4 to extrude the edge of the plate spring 5, so that the plate spring 5 meets the machining requirement, and finally a punch of a punching machine 1 works to complete punching. The equipment integrates the edge extrusion, the thermal straightening and the thermal punching, saves energy consumption, equipment and operators of the thermal punching local heating and the edge cutting, saves cost for enterprises, and realizes energy conservation and emission reduction. The punch provides punching power to the plate spring 5 and serves as a base frame body.

Claims (10)

1. The utility model provides a crowded hot alignment of limit and integrated processingequipment that punches a hole, includes punching machine (1), is equipped with cut-out press (2) on punching machine (1), and corresponds punching position department on punching machine (1) and be equipped with length positioner (3) that are used for work piece length direction to fix a position, its characterized in that: a width positioning and edge extruding straightening device (4) for positioning and extruding and straightening edges in the width direction is further arranged at the position, corresponding to the punching hole, on the punching machine (1); the width positioning and edge extruding straightening device (4) comprises a hydraulic driving mechanism (4.1) and an extruding driving mechanism (4.2).

2. The integrated processing device for trimming, heat straightening and punching according to claim 1, which is characterized in that: the hydraulic driving mechanism (4.1) comprises an installation bottom plate (4.1-4) and two force arms (4.1-1), the middle parts of the two force arms (4.1-1) are respectively connected with the installation bottom plate (4.1-4) through supporting pin shafts (4.1-2), the bottom ends of the two force arms (4.1-1) are respectively hinged with a cylinder body lug ring and a piston shaft lug ring of a driving oil cylinder (4.1-5), the top ends of the two force arms (4.1-1) are respectively fixed with movable jaws (4-1), and the central position between the two movable jaws (4-1) corresponds to the punching position of the punching die (2); the mounting bottom plate (4.1-4) is fixed on the side surface of the punch (1); the positions of the two movable jaws (4-1) corresponding to the punching position of the punching die (2) are respectively provided with an extrusion straightening plate (4-4), and the positions corresponding to the extrusion straightening plates (4-4) are provided with an extrusion driving mechanism (4.2).

3. The integrated processing device for extrusion edge heat straightening and punching according to claim 2, characterized in that: the extrusion driving mechanism (4.2) comprises an extrusion oil cylinder (4.2-1), the extrusion oil cylinder (4.2-1) is fixed on one movable jaw (4-1), the end part of a piston rod of the extrusion oil cylinder (4.2-1) penetrates through the clamping key seat (4.2-2), the end part of the piston rod of the extrusion oil cylinder (4.2-1) is fixedly connected with the clamping key (4.2-3) in the clamping key seat (4.2-2), and the clamping key seat (4.2-2) is fixedly connected with the other movable jaw (4-1).

4. The integrated processing device for extrusion edge heat straightening and punching according to claim 2, characterized in that: the mounting bottom plate (4.1-4) is also provided with a driving vertical sliding rail (4.1-6), the driving vertical sliding rail (4.1-6) is provided with a driving sliding block (4.1-7) in sliding fit with the driving vertical sliding rail, two sides of the driving sliding block (4.1-7) are respectively hinged with one end of the connecting rod (4.1-3), and the other ends of the two connecting rods (4.1-3) are respectively hinged with the force arm (4.1-1) at the same side.

5. The integrated processing device for extruded edge hot straightening and punching according to any one of claims 2 to 4, characterized in that: a width limiting component (4.3) is arranged between the two movable jaws (4-1), the width limiting component comprises a limiting ball seat (4.3-1) and a limiting nut (4.3-3) which are respectively fixed on the movable jaws (4-1) at two sides, and the limiting screw rod (4.3-2) and the limiting nut (4.3-3) are connected in a matched manner through threads; the limiting ball seat (4.3-1) is matched with the limiting screw rod (4.3-2) through concave-convex spherical surfaces with the same radian.

6. The integrated processing device for extruded edge hot straightening and punching according to claim 5, characterized in that: an installation base (4-3) is arranged on the punching machine (1) below the movable jaw (4-1), a straightening horizontal slide rail (4-2) is fixed on the installation base (4-3), and the movable jaw (4-1) slides along the straightening horizontal slide rail (4-2).

7. The integrated processing device for extruded edge hot straightening and punching according to claim 5, characterized in that: one end of the limiting screw rod (4.3-1) far away from the limiting ball seat (4.3-2) is provided with an adjusting chuck (4.3-4) in a matching way, and the adjusting chuck (4.3-4) is fixed on the movable jaw (4-1) through threaded connection.

8. The integrated processing device for extrusion edge heat straightening and punching according to claim 1, characterized in that: the length positioning device (3) comprises a length positioning mounting support (3-1) fixed on the punching machine (1), a synchronizing mechanism (3.1) is fixed on the length positioning mounting support (3-1), two ends of the synchronizing mechanism (3.1) are respectively connected with a positioning baffle (3-5), a length positioning sliding seat (3-4) is further connected onto the positioning baffle (3-5), and the length positioning sliding seat (3-4) slides along a length positioning sliding rail (3-2) fixed on the length positioning mounting support (3-1).

9. The integrated processing device for trimming, heat straightening and punching according to claim 8, wherein: the synchronous mechanism (3.1) comprises a synchronous gear box (3.1-1), a synchronous gear (3.1-3) and a synchronous rack I (3.1-4) and a synchronous rack II (3.1-5) which are in meshing transmission with the synchronous gear (3.1-3) are arranged in the synchronous gear box (3.1-1), and the synchronous rack I (3.1-4) and the synchronous rack II (3.1-5) are respectively arranged at two sides of the synchronous gear (3.1-3); two ends of the synchronous gearbox (3.1-1) are respectively provided with a left rack clamping seat (3.1-9) and a right rack clamping seat (3.1-6), the left rack clamping seat (3.1-9) is fixedly connected with one end of a synchronous rack I (3.1-4) penetrating through the synchronous gearbox (3.1-1), and the other end of the synchronous rack I (3.1-4) penetrates through the synchronous gearbox (3.1-1) and the right rack clamping seat (3.1-6); the right rack clamping seat (3.1-6) is fixedly connected with one end of a second synchronous rack (3.1-5) which penetrates through the synchronous gearbox (3.1-1), and the other end of the second synchronous rack (3.1-5) penetrates through the synchronous gearbox (3.1-1) and the left rack clamping seat (3.1-9); the left rack clamping seat (3.1-9) is fixedly connected with a left traction shaft (3.1-8), the right rack clamping seat (3.1-6) is fixedly connected with a right traction shaft (3.1-7), and the left traction shaft (3.1-8) and the right traction shaft (3.1-7) are respectively connected with a positioning baffle (3-5); a length positioning cylinder (3.1-2) is fixed on the synchronous gearbox (3.1-1), and a piston shaft of the length positioning cylinder (3.1-2) is fixedly connected with the right rack clamping seat (3.1-6).

10. The integrated processing device for trimming, heat straightening and punching according to claim 9, wherein: the positioning baffle (3-5) is fixedly connected with the left traction shaft (3.1-8) and the right traction shaft (3.1-7) through the locking unit (3-3); the locking unit (3-3) comprises a locking block (3-3.1), a positioning baffle (3-5) is fixedly connected with the locking block (3-3.1), an upper clamping block (3-3.4) and a lower clamping block (3-3.5) which are arranged up and down are arranged in a cavity in the middle of the locking block (3-3.1), the upper clamping block (3-3.4) and the locking block (3-3.1) are fixed through bolts, the lower clamping block (3-3.5) is positioned below the upper clamping block (3-3.4), a locking screw (3-3.2) penetrates through a threaded through hole in the upper clamping block (3-3.3) and is matched and connected with a threaded hole in the lower clamping block (3-3.5), and the top end of the locking screw (3-3.2) is connected with a locking handle (3-3.3); the upper clamping block (3-3.4) and the lower clamping block (3-3.5) are locked on the left traction shaft (3.1-8) and the right traction shaft (3.1-7) in a matching way.

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