Copper bar bending machine
Technical Field
The utility model relates to the technical field of copper bar processing, in particular to a copper bar bending machine.
Background
The copper bar bus is used as an important component of an electric conduction system, bears the key task of current transmission, and is bent and molded by a bending machine in general, wherein the shapes of actually used copper bars are different.
When bending the copper bar, the bending dies are limited by the shape of the copper bar, and are arranged on a machine body of the bending machine in a single-end fixed mode, copper is discharged between a movable die and a fixed die, and the movable die moves to bend the copper bar.
The movable die and the fixed die are directly matched to bend the copper bar, the copper bar raw material in a flat plate state is directly punched into a copper bar finished product, the processing process is simple and rough, the bending part of the copper bar is stretched and deformed, the qualification rate of the finished product is affected, and the processing stability is poor.
Disclosure of utility model
In order to solve the technical problems, the utility model provides the copper bar bending machine which is used for pre-bending a copper bar raw material through the pre-bending guide post, so that the copper bar bending process is gradual, the copper bar is prevented from being stretched and deformed by external force when being bent, the qualification rate of copper bar processing is improved, and the processing stability is improved.
The copper bar bending machine comprises a bending die, wherein two groups of fillets are symmetrically arranged on the working end surface of the bending die, and the fillets are used for bending and forming copper bars;
The support plate is arranged in the stamping direction of the bending die;
The lower die plate is provided with two groups of forming blocks, the forming blocks are provided with round corner grooves, and the round corner grooves on the two groups of forming blocks correspond to the two groups of round corners of the operation end face of the bending die;
The pre-folding guide posts are smooth cylinders, two groups of pre-folding guide posts are arranged, the two groups of pre-folding guide posts are respectively arranged on two sides of the support plate under the action of no external force, and the pre-folding guide posts are used for pre-folding the copper bar forming piece.
The copper bar bending machine further comprises limiting plates, wherein two groups of limiting plates are symmetrically arranged on the lower die plate, and each group of limiting plates is provided with a guide groove used for guiding the pre-folded guide post.
According to the copper bar bending machine, at least two groups of pre-folded supports are symmetrically arranged on the forming block, and each group of pre-folded supports is provided with a workpiece positioning assembly for positioning copper bar raw materials.
The copper bar bending machine further comprises at least four groups of forming guide posts, wherein the four groups of forming guide posts are respectively arranged at the edge of the supporting plate and used for guiding the bending die.
According to the copper bar bending machine, the bottom end of the support plate is provided with the guide pins for guiding the support plate.
According to the copper bar bending machine, a plurality of groups of elastic components are arranged between the support plate and the lower template.
According to the copper bar bending machine, the length of the support plate is smaller than the distance between two groups of forming blocks, and interference between the support plate and the forming blocks when the support plate moves downwards is prevented.
According to the copper bar bending machine, one end, far away from the bending die, of the support plate is provided with the sound insulation component, and the sound insulation component is used for buffering impact between the support plate and the lower die plate when the support plate moves to the lowest point.
Compared with the prior art, the utility model has the beneficial effects that:
In this step, place the copper bar former on the support piece board, afterwards push down through pneumatic cylinder control cope match-plate pattern, then push down through the cope match-plate pattern drive bending die, bending die bottom is contradicted on the copper bar former, afterwards under the effect of pressure, copper bar former and support piece board can extrude elastic component and make elastic component compress, copper bar former both ends that move down this moment can depend on bending die bottom and two sets of fillet take place bending deformation under the restriction effect of pre-bending guide post, simultaneously under the effect of pressure, two sets of pre-bending guide posts can outwards translate, compress the spring, under the effect of pre-bending guide post, carry out the pre-bending to the copper bar, buckle the copper bar former to certain angle, under the effect of spring, make this bending process become mild, then under the continuation effect of pressure, press the copper bar former of pre-bending to two sets of shaping pieces on, carry out final shaping through the fillet recess of shaping piece, carry out pre-bending guide post to the copper bar former, the process of bending in order of copper bar, the progressive bending of messenger, by the copper bar is bent, by the effect of pre-bending guide post, the copper bar is advanced, by bending, the copper bar is bent, the processing stability is qualified, and stability is improved.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a bending die mounting structure;
FIG. 3 is a schematic view of a carrier plate mounting structure;
FIG. 4 is a schematic view of the mounting structure of the forming block and the pre-folded guide post;
FIG. 5 is a schematic view of the spring sheath mated with the spring assembly;
FIG. 6 is a schematic cross-sectional view of a pre-folded support;
FIG. 7 is a schematic diagram of a limiting plate mounting structure;
FIG. 8 is a schematic view of the structure of a copper bar molding;
The drawing comprises a bending machine frame 1, a hydraulic cylinder 2, an upper template 3, a bending die 4, a die leg 5, a supporting plate 6, a supporting plate 7, a lower template 8, a spring through hole 9, an elastic component 10, a supporting plate 11, a forming block 12, a pre-bending support 13, a spring 14, a spring jacking column 15, a pre-bending guide column 16, a limiting plate 17, a guide groove 18, a guide column 19, a workpiece positioning component 20, a forming guide column 21, a guide hole 22, a guide pin 23, a spring sheath 24 and a copper bar forming piece.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 8, the copper bar bending machine comprises a bending die 4, wherein two groups of fillets are symmetrically arranged on the working end surface of the bending die 4 and are used for bending and forming copper bars, the bending die 4 is arranged on the end surface of an upper die plate 3, the top end of the upper die plate 3 is connected with the output end of a hydraulic cylinder 2, and the hydraulic cylinder 2 is arranged on a bending frame 1;
The support plate 10 is arranged in the stamping direction of the bending die 4; a plurality of groups of elastic components 9 are arranged on the support plate 10, die legs 5 are arranged at the bottom end of the bending frame 1, a supporting plate 6 is arranged on the die legs 5, a lower die plate 7 is arranged on the supporting plate 6, a plurality of groups of spring through holes 8 are formed in the lower die plate 7 and the supporting plate 6 in a penetrating manner, the number of the spring through holes 8 is equal to that of the elastic components 9, a group of elastic components 9 are inserted into each group of spring through holes 8, and the bottom ends of the elastic components 9 are fastened on the die legs 5;
The lower die plate 7 is provided with two groups of forming blocks 11, the forming blocks 11 are provided with round corner grooves, and the round corner grooves on the two groups of forming blocks 11 correspond to the two groups of round corners at the bottom end of the bending die 4;
When the copper bar moves downwards under the stress, the two ends of the copper bar are subjected to stress slow bending for a certain angle under the cooperation of the two groups of pre-bending guide posts 15, the certain angle is smaller than the bending angle of a finished product, pre-bending supports 12 are arranged on the two groups of forming blocks 11, a guide sliding cavity is arranged in the pre-bending supports 12, springs 13 are arranged in the guide sliding cavity, spring jacking columns 14 are arranged in a sliding mode, the springs 13 are fixedly connected with the spring jacking columns 14, and the pre-bending supports 15 are arranged on the spring jacking columns 14;
In this step, place the copper bar former on support piece board 10, afterwards push down through hydraulic cylinder 2 control cope match-plate pattern 3, then push down through cope match-plate pattern 3 drive bending die 4, bending die 4 bottom is contradicted on the copper bar former, afterwards under the effect of pressure, copper bar former and support piece board 10 can extrude elastic component 9 and make elastic component 9 compress, copper bar former both ends that move down this moment can depend on bending die 4 bottom and two sets of fillet take place bending deformation under the restriction effect of two sets of pre-bending guide posts 15, simultaneously under the effect of pressure, two sets of pre-bending guide posts 15 can outwards translate, compress spring 13, buckle the copper bar in advance to certain angle under the effect of pre-bending guide post 15, under the effect of spring 13, make this bending process become mild, then under the continued effect of pressure, press the copper bar former of pre-bending to two sets of shaping piece 11, carry out final shaping to the copper bar through the fillet recess of shaping piece 11, advance bending guide post 15 to copper bar former, the copper bar is advanced bending guide post, when the copper bar is bent gradually, the processing stability is improved, the processing stability of bending is improved when the copper bar is processed, the processing is qualified.
The embodiment preferably further includes a limiting plate 16, two sets of limiting plates 16 are symmetrically disposed on the lower die plate 7, four sets of guide grooves 17 are disposed on the two sets of limiting plates 16, two sets of guide posts 18 are disposed on two ends of each set of pre-folded guide post 15, the guide posts 18 are in one-to-one correspondence with the guide grooves 17, a set of guide posts 18 are slidably disposed in each set of guide grooves 17, the guide grooves 17 and the guide posts 18 are matched to limit the sliding path and travel of the pre-folded guide post 15, and the copper bar material acts on the pre-folded guide post 15 longitudinally, so that the connection part of the pre-folded guide post 15 and the spring jack post 14 is broken under the action of long-term longitudinal force, even the spring jack post 14 is bent, the aperture of the spring 13 is enlarged, and finally shaking and clamping stagnation occur to the movement of the pre-folded guide post 15, so that the processing efficiency is affected.
As the optimization of the embodiment, the copper bar positioning device further comprises two groups of workpiece positioning assemblies 19, wherein the workpiece positioning assemblies 19 are respectively arranged on the two groups of pre-folded supports 12 and used for positioning copper bar raw materials, the top end surfaces of the two groups of limiting plates 16 are higher than the top end surfaces of the support plates 10, the two groups of limiting plates 16 are used for positioning the copper bar raw materials in the width direction, and the two groups of workpiece positioning assemblies 19 are used for positioning the copper bar raw materials in the length direction, so that deflection during copper bar raw material feeding is avoided, machining precision is guaranteed, and machining quality is improved.
The embodiment is preferable, and the device further comprises four forming guide posts 20, wherein the four forming guide posts are respectively arranged at four corners of the supporting plate, the four forming guide posts 20 are slidably provided with an upper template 3, and when the upper template 3 moves up and down, the forming guide posts stably move along the directions of the four forming guide posts 20, and further stably drive the bending die 4 to move up and down, so that the bending die 4 is prevented from shifting, the processing quality is ensured, and the processing stability is improved.
The upper die plate and the lower die plate 7 and the supporting plate 6 are provided with a plurality of groups of guide pins 22, a plurality of groups of guide holes 21 are formed in the lower die plate and the supporting plate 6 in a penetrating manner, the number of the guide holes 21 is equal to that of the guide pins 22, one group of guide pins 22 is inserted into each guide hole 21 in a sliding manner, when the supporting plate 10 moves under the action of external force, the guide pins 22 slide in the guide holes 21 to guide the supporting plate 10, the supporting plate 10 is prevented from shifting when moving up and down, the supporting plate 10 is prevented from interfering with other parts, smooth processing is ensured, and processing stability is improved.
As the preference of the embodiment, the device further comprises spring sheaths 23, the number of the spring sheaths 23 is equal to that of the elastic assemblies 9, the spring sheaths 23 are in one-to-one correspondence with the elastic assemblies 9, the spring sheaths 23 are sleeved on the elastic assemblies 9, the spring sheaths 23 are arranged in the die legs 5, and each group of the elastic assemblies 9 is positioned and protected through each group of the spring sheaths 23, so that the elastic assemblies 9 are prevented from bending in the compression process, and the working stability of the elastic assemblies 9 is ensured.
In the processing process, the support plate 10 is required to move down to the lower side of the rounded groove of the forming block 11 under the action of external force, so that the copper bar raw material is completely attached to the rounded groove of the forming block 11, and further the copper bar is bent and formed, the length of the support plate 10 is set to be smaller than the interval between the two groups of forming blocks 11, the smooth downward movement of the support plate 10 is ensured, the downward movement of the support plate 10 is prevented from being blocked by the forming block 11, and the use stability is improved.
In the actual production process, the bottom end of the support plate 10 is attached to the lower die plate 7 once under the action of external force every time the support plate 10 is processed, the support plate 10 is attached to the lower die plate 7, and the impact sound is generated, so that the lower die plate 7 and the support plate 10 deform for a long time, and the noise generated during processing is eliminated, and the assembly is protected, so that the processing stability is protected.
According to the copper bar bending machine, when the copper bar bending machine works, copper bar raw materials are placed on a support plate 10, an upper template 3 is controlled to be pressed down through a hydraulic cylinder 2, a bending die 4 is driven to be pressed down through the upper template 3, the bottom end of the bending die 4 is abutted against the copper bar raw materials, then under the action of pressure, the copper bar raw materials and the support plate 10 can extrude an elastic component 9 to compress the elastic component 9, at the moment, two ends of the copper bar raw materials which move downwards are attached to the bottom end of the bending die 4 and two groups of fillets under the limiting action of two groups of pre-bending guide posts 15, meanwhile, the two groups of pre-bending guide posts 15 can translate outwards to compress a spring 13 under the action of the pre-bending guide posts 15, the copper bar raw materials are bent to a certain angle, the bending process is relaxed under the action of the spring 13, then under the continuous action of pressure, the pre-bending copper bar raw materials are pressed onto the two groups of forming blocks 11, and the copper bar is finally formed through grooves of the forming blocks 11.
The copper bar bending machine has the advantages that the installation mode, the connection mode or the setting mode of the copper bar bending machine are common mechanical modes, and the copper bar bending machine can be implemented as long as the beneficial effects of the copper bar bending machine can be achieved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.