Copper bar bending machine

Abstract

The utility model relates to the technical field of copper bar processing, in particular to a copper bar bending machine which is characterized in that a copper bar raw material is pre-bent through a pre-bending guide column, so that the copper bar bending process is progressive, the copper bar is prevented from being stretched and deformed by external force during bending, the qualified rate of copper bar processing is improved, and the processing stability is improved. Comprising a bending die, the working end face of the bending die is symmetrically provided with two groups of fillets, and the fillets are used for bending and forming a copper bar; the supporting plate is arranged in the stamping direction of the bending die; the lower die plate is provided with two groups of forming blocks, each forming block is provided with a fillet groove, and the fillet grooves in the two groups of forming blocks correspond to the two groups of fillets on the operation end face of the bending die; and the pre-folding guide columns are smooth cylinders, the two sets of pre-folding guide columns are arranged, the two sets of pre-folding guide columns are arranged on the two sides of the part supporting plate under the condition that no external force exists, and the pre-folding guide columns are used for conducting pre-folding treatment on the copper bar forming part.

Description

Technical Field

[0001] The utility model relates to the technical field of copper bar processing, in particular to a copper bar bending machine. Background Art

[0002] As an important component of the electrical conduction system, the copper busbar undertakes the key task of current transmission. The copper busbars actually used have different shapes and are generally bent into shape using a bending machine.

[0003] When bending the copper busbar, due to the shape of the copper busbar, some bending dies are installed on the body of the bending machine in a single-end fixed manner. The copper busbar is placed between the movable die and the fixed die, and the movable die moves to bend the copper busbar.

[0004] This method uses a movable mold and a fixed mold to directly cooperate to bend the copper bar, and directly punches the flat copper bar raw material into a finished copper bar. The processing process is simple and rough, which causes the copper bar to be stretched and deformed at the bend, affecting the qualified rate of the finished product and resulting in poor processing stability. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a copper busbar bending machine which pre-bends the copper busbar raw material through pre-bending guide pins, so that the copper busbar bending process is gradual, avoiding the copper busbar being stretched and deformed by external force during bending, improving the qualified rate of copper busbar processing, and improving processing stability.

[0006] The utility model discloses a copper bar bending machine, comprising a bending die, wherein the working end surface of the bending die is symmetrically provided with two groups of rounded corners, and the rounded corners are used for bending and forming the copper bar;

[0007] A support plate, wherein the support plate is arranged in the stamping direction of the bending die;

[0008] A lower template, wherein two groups of forming blocks are arranged on the lower template, and the forming blocks are provided with rounded grooves, and the rounded grooves on the two groups of forming blocks correspond to the two groups of rounded corners on the working end surface of the bending mold;

[0009] Pre-folding guide pins are smooth cylinders. Two groups of pre-folding guide pins are provided. The two groups of pre-folding guide pins are respectively arranged on both sides of a support plate without external force. The pre-folding guide pins are used to pre-fold the copper busbar forming parts.

[0010] The utility model provides a copper bar bending machine, which also includes limiting plates. Two groups of limiting plates are symmetrically arranged on the lower template. Each group of limiting plates is provided with guide grooves, which are used to guide the pre-bending guide pillars.

[0011] The utility model provides a copper bar bending machine, wherein at least two groups of pre-folding supports are symmetrically arranged on the forming block, and each group of the pre-folding supports is provided with a workpiece positioning component for positioning the copper bar raw material.

[0012] The utility model provides a copper bar bending machine, which also comprises forming guide posts. The forming guide posts are provided with at least four groups. The four groups of forming guide posts are respectively arranged at the edges of the supporting plate and are used for guiding the bending mould.

[0013] The utility model discloses a copper bar bending machine, wherein the bottom end of the support plate is provided with a plurality of guide pins for guiding the support plate.

[0014] The utility model discloses a copper bar bending machine, wherein a plurality of groups of elastic components are arranged between the supporting plate and the lower template.

[0015] The utility model provides a copper bar bending machine, wherein the length of the support plate is smaller than the spacing between two groups of forming blocks, so as to prevent the support plate from interfering with the forming blocks when the support plate moves downward.

[0016] The utility model discloses a copper bar bending machine, wherein a sound insulation component is arranged at one end of the support plate away from the bending mould, and is used for buffering the impact between the support plate and the lower mould plate when the support plate moves down to the lowest point.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In this step, the copper bar raw material is placed on the support plate, and then the upper template is controlled to press down by the hydraulic cylinder, and then the bending mold is driven downward by the upper template, and the bottom end of the bending mold is in contact with the copper bar raw material. Then, under the action of pressure, the copper bar raw material and the support plate will squeeze the elastic component to compress the elastic component. At this time, the two ends of the copper bar raw material that moves downward will be attached to the bottom end of the bending mold and the two sets of fillets under the restriction of the two sets of pre-bending guide pillars, and at the same time, under the action of pressure, the two sets of pre-bending guide pillars will translate outward to the elastic component. The copper bar is pre-folded by the pre-folding guide pin, and the copper bar raw material is bent to a certain angle. Under the action of the spring, the bending process becomes gentle. Then, under the continued action of pressure, the pre-folded copper bar raw material is pressed onto the two groups of forming blocks, and the copper bar is finally formed by the rounded grooves of the forming blocks. The copper bar raw material is pre-folded by the pre-folding guide pin, so that the copper bar bending process is gradual, avoiding the copper bar being stretched and deformed by external force during bending, improving the qualified rate of copper bar processing, and improving processing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the bending die installation structure;

[0022] Figure 3 1. It is a schematic diagram of the mounting structure of the support plate;

[0023] Figure 4 It is a schematic diagram of the installation structure of the forming block and the pre-folding guide column;

[0024] Figure 5 It is a schematic diagram of the matching structure of the spring sheath and the elastic component;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the pre-folded support;

[0026] Figure 7 1. It is a schematic diagram of the installation structure of the limit plate;

[0027] Figure 8 It is a schematic diagram of the structure of the copper busbar forming part;

[0028] Markings in the attached drawings: 1. Bending machine frame; 2. Hydraulic cylinder; 3. Upper template; 4. Bending mold; 5. Die foot; 6. Support plate; 7. Lower template; 8. Spring through hole; 9. Elastic component; 10. Support plate; 11. Forming block; 12. Pre-folding support; 13. Spring; 14. Spring top column; 15. Pre-folding guide column; 16. Limiting plate; 17. Guide groove; 18. Guide column; 19. Workpiece positioning assembly; 20. Forming guide column; 21. Guide hole; 22. Guide pin; 23. Spring sleeve; 24. Copper busbar forming part. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] like Figures 1 to 8 As shown, a copper bar bending machine of the utility model comprises a bending die 4, the working end surface of the bending die 4 is symmetrically provided with two sets of fillets, and the fillets are used for bending and forming the copper bar; the bending die 4 is installed on the end surface of the upper template 3, the top end of the upper template 3 is connected to the output end of the hydraulic cylinder 2, and the hydraulic cylinder 2 is installed on the bending machine frame 1;

[0031] A support plate 10, the support plate 10 is arranged in the stamping direction of the bending die 4; a plurality of groups of elastic components 9 are installed on the support plate 10, a die foot 5 is installed at the bottom end of the bending frame 1, a support plate 6 is installed on the die foot 5, a lower mold plate 7 is installed on the support plate 6, a plurality of groups of spring through holes 8 are penetrated through the lower mold plate 7 and the support plate 6, the number of the spring through holes 8 is equal to the number of the elastic components 9, a group of elastic components 9 is inserted in each group of spring through holes 8, and the bottom end of the elastic component 9 is fastened to the die foot 5;

[0032] A lower template 7, wherein two groups of forming blocks 11 are arranged on the lower template 7, and rounded grooves are arranged on the forming blocks 11. The rounded grooves on the two groups of forming blocks 11 correspond to the two groups of rounded corners at the bottom of the bending mold 4; the two groups of forming blocks 11 are symmetrically mounted on the lower template 7;

[0033] Pre-folding guide pins 15, the pre-folding guide pins 15 are smooth cylinders, and the pre-folding guide pins 15 are provided with two groups, and the two groups of pre-folding guide pins 15 are respectively arranged on both sides of the support plate 10 under no external force, and the pre-folding guide pins 15 are used to pre-fold the copper bar forming part 24; when the copper bar is forced to move downward, under the cooperation of the two groups of pre-folding guide pins 15, the two ends of the copper bar are forced to bend slowly at a certain angle, and the certain angle is smaller than the bending angle of the finished product, and the two groups of the forming blocks 11 are both installed with pre-folding supports 12, and the pre-folding supports 12 are provided with a guide sliding cavity, and the pre-folding support 12 The guide sliding cavity is provided with a spring 13, and a spring top column 14 is slidably provided in the guide sliding cavity, and the spring 13 is fastened to the spring top column 14, and the pre-folding guide pin 15 is installed on the spring top column 14;

[0034] In this step, the copper bar raw material is placed on the support plate 10, and then the upper template 3 is controlled to be pressed down by the hydraulic cylinder 2, and then the bending mold 4 is driven to be pressed down by the upper template 3, and the bottom end of the bending mold 4 is against the copper bar raw material. Then, under the action of pressure, the copper bar raw material and the support plate 10 will squeeze the elastic component 9 to compress the elastic component 9. At this time, the two ends of the copper bar raw material that moves downward will be attached to the bottom end of the bending mold 4 and the two groups of fillets under the restriction of the two groups of pre-bending guide pillars 15, and will bend and deform. At the same time, under the action of pressure, the two groups of pre-bending guide pillars 15 will translate outward. The spring 13 is compressed, and the copper bar is pre-folded under the action of the pre-folding guide pin 15, and the copper bar raw material is bent to a certain angle. Under the action of the spring 13, the bending process becomes gentle, and then under the continued action of pressure, the pre-folded copper bar raw material is pressed onto the two groups of forming blocks 11, and the copper bar is finally formed by the rounded grooves of the forming blocks 11. The copper bar raw material is pre-folded by the pre-folding guide pin 15, so that the copper bar bending process is gradual, avoiding the copper bar from being stretched and deformed by external force during bending, improving the qualified rate of copper bar processing, and improving processing stability.

[0035] As a preferred embodiment of the above embodiment, it also includes a limit plate 16, two groups of the limit plates 16 are symmetrically arranged on the lower template 7, four groups of guide grooves 17 are relatively arranged on the two groups of limit plates 16, two groups of guide columns 18 are relatively arranged at both ends of each group of pre-folding guide pillars 15, the guide columns 18 correspond to the guide grooves 17 one by one, and a group of guide columns 18 are slidably arranged in each group of guide grooves 17, and the guide grooves 17 and the guide columns 18 are used to limit the sliding path and stroke of the pre-folding guide pillars 15; due to the effect of the copper bar raw material on the pre-folding guide pillars 15 The force is applied longitudinally, so under the action of long-term longitudinal force, the connection between the pre-folding guide column 15 and the spring top column 14 will be broken, and even the spring top column 14 will be bent. In worse cases, the aperture of the spring 13 will become larger, and eventually the pre-folding guide column 15 will shake and get stuck, affecting the processing efficiency. Therefore, the guide groove 17 and the guide column 18 are matched to share the pressure from the copper busbar raw material to prevent deformation of the components. At the same time, the pre-folding guide column 15 is guided to improve the stability of use.

[0036] As a preferred embodiment of the above embodiment, it also includes a workpiece positioning component 19, and the workpiece positioning component 19 is provided with two groups. The two groups of workpiece positioning components 19 are respectively arranged on two groups of pre-folded supports 12, and are used to position the copper bar raw material; the top end surfaces of the two groups of limiting plates 16 are higher than the top end surface of the supporting plate 10, and the copper bar raw material is positioned in the width direction through the two groups of limiting plates 16, and the copper bar raw material is positioned in the length direction through the two groups of workpiece positioning components 19, so as to avoid the displacement of the copper bar raw material when feeding, ensure the processing accuracy, and improve the processing quality.

[0037] As a preferred embodiment of the above embodiment, it also includes forming guide pillars 20, which are provided in four groups. The four groups of forming guide pillars are respectively arranged on the four corners of the support plate, and the upper template 3 is slidably arranged on the four groups of forming guide pillars 20; when the upper template 3 moves up and down, it moves stably along the direction of the four groups of forming guide pillars 20, and then stably drives the bending mold 4 to move up and down, prevents the bending mold 4 from shifting, ensures the processing quality, and improves the processing stability.

[0038] As a preferred embodiment of the above embodiment, it also includes guide pins 22. Several groups of guide pins 22 are arranged at the bottom end of the support plate 10. Several groups of guide holes 21 are penetrated on the lower template 7 and the support plate 6. The number of the guide holes 21 is equal to the number of the guide pins 22. A group of guide pins 22 is slidably inserted in each guide hole 21. When the support plate 10 moves downward under the action of external force, the guide pins 22 slide in the guide holes 21 to guide the support plate 10, avoid the support plate 10 from deflecting when moving up and down, prevent the support plate 10 from interfering with other components, ensure smooth processing, and improve processing stability.

[0039] As a preferred embodiment of the above embodiment, it also includes spring sheaths 23, the number of which is equal to the number of elastic components 9, the spring sheaths 23 correspond to the elastic components 9 one by one, the spring sheaths 23 are sleeved on the elastic components 9, and the spring sheaths 23 are arranged in the mold foot 5; each group of elastic components 9 is positioned and protected by each group of spring sheaths 23 to prevent the elastic components 9 from bending during the compression process, thereby ensuring the working stability of the elastic components 9.

[0040] As a preferred embodiment of the above embodiment, the length of the support plate 10 is less than the spacing between the two groups of forming blocks 11 to prevent the support plate 10 from interfering with the forming blocks 11 when moving downward; during the processing, the support plate 10 is subjected to external force and needs to move downward to the lower side of the rounded groove of the forming block 11, so that the copper busbar raw material is completely fitted with the rounded groove of the forming block 11, and then the copper busbar is bent into shape. The length of the support plate 10 is set to be less than the spacing between the two groups of forming blocks 11 to ensure that the support plate 10 can move downward smoothly, avoid the forming blocks 11 blocking the support plate 10 from moving downward, and improve the stability of use.

[0041] As a preference of the above embodiment, a sound insulation component is provided at the bottom end of the support plate 10, which is used to cushion the impact between the support plate 10 and the lower template 7 when the support plate 10 moves down to the lowest point to reduce noise; in the actual production process, the support plate 10 is under the action of external force, and the bottom end of the support plate 10 will be attached to the lower template 7 once during each processing. When the support plate 10 and the lower template 7 are attached, an impact sound will be made, and the lower template 7 and the support plate 10 will be deformed over time. Therefore, by providing a sound insulation component, the noise generated during processing can be eliminated, and the component can be protected to protect the processing stability.

[0042] The utility model is a copper bar bending machine. When working, the copper bar raw material is placed on the supporting plate 10, and then the upper template 3 is controlled to be pressed down by the hydraulic cylinder 2, and then the bending mold 4 is driven to be pressed down by the upper template 3. The bottom end of the bending mold 4 is against the copper bar raw material. Then, under the action of pressure, the copper bar raw material and the supporting plate 10 will squeeze the elastic component 9 to compress the elastic component 9. At this time, the two ends of the copper bar raw material that moves downward will be attached to the bending mold under the restriction of the two sets of pre-bending guide pillars 15. 4, the bottom end and the two groups of fillets are bent and deformed. At the same time, under the action of pressure, the two groups of pre-folding guide pillars 15 will translate outward to compress the spring 13. Under the action of the pre-folding guide pillars 15, the copper busbar is pre-folded and the copper busbar raw material is bent to a certain angle. Under the action of the spring 13, the bending process becomes gentle. Subsequently, under the continued action of pressure, the pre-folded copper busbar raw material is pressed onto the two groups of forming blocks 11, and the copper busbar is finally formed through the fillet grooves of the forming blocks 11.

[0043] The utility model provides a copper bar bending machine, and its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A copper bar bending machine, characterized in that: include: A bending die, wherein the working end surface of the bending die is symmetrically provided with two sets of fillets, and the fillets are used for bending and forming the copper busbar; A support plate, wherein the support plate is arranged in the stamping direction of the bending die; A lower template, wherein two groups of forming blocks are arranged on the lower template, and the forming blocks are provided with rounded grooves, and the rounded grooves on the two groups of forming blocks correspond to the two groups of rounded corners on the working end surface of the bending mold; Pre-folding guide pins are smooth cylinders. Two groups of pre-folding guide pins are provided. The two groups of pre-folding guide pins are respectively arranged on both sides of a support plate without external force. The pre-folding guide pins are used to pre-fold the copper busbar forming parts.

2. A copper bar bending machine as claimed in claim 1, characterized in that: It also includes limiting plates, two groups of limiting plates are symmetrically arranged on the lower template, and each group of limiting plates is provided with guide grooves, and the guide grooves are used to guide the pre-folding guide pillars.

3. A copper bar bending machine as claimed in claim 1, characterized in that: At least two groups of pre-folding supports are symmetrically arranged on the forming block, and each group of the pre-folding supports is provided with a workpiece positioning component for positioning the copper busbar raw material.

4. A copper bar bending machine as claimed in claim 1, characterized in that: It also includes forming guide pillars, which are provided in at least four groups. The four groups of forming guide pillars are respectively arranged at the edges of the supporting plate to guide the bending mold.

5. A copper bar bending machine as claimed in claim 1, characterized in that: A plurality of guide pins are arranged at the bottom end of the support plate for guiding the support plate.

6. A copper bar bending machine as claimed in claim 1, characterized in that: A plurality of groups of elastic components are arranged between the supporting plate and the lower template.

7. A copper bar bending machine as claimed in claim 1, characterized in that: The length of the support plate is less than the spacing between the two groups of forming blocks, so as to prevent the support plate from interfering with the forming blocks when moving downward.

8. The copper bar bending machine according to claim 1, characterized in that: A sound insulation component is arranged at one end of the support plate away from the bending mold, and is used to cushion the impact between the support plate and the lower mold plate when the support plate moves down to the lowest point.

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