Metal wire forming device

Abstract

The application relates to a metal wire forming device, which comprises a base, a forming upper mechanism and a forming lower mechanism arranged on the base, the forming upper mechanism comprises a mounting plate, a support is fixedly arranged on the upper end of the mounting plate, a workpiece fixing member capable of moving up and down is arranged on one side surface of the support, the lower end of the workpiece fixing member extends downward to press and fix a metal wire, a gap hole is arranged on the mounting plate for the lower end of the workpiece fixing member to pass through, a forming convex die is fixedly arranged on the lower end of the mounting plate, and the lower end surface of the forming convex die is a forming surface matched with the shape of a finished metal wire; the forming lower mechanism comprises a lower die base and a forming concave die corresponding to the forming convex die, the forming concave die is fixed on the lower die base, the lower die base is driven by a first motor to drive the forming concave die to move up and down, the upper end surface of the forming concave die is a forming surface matched with the shape of the finished metal wire, and the upper end of the forming concave die corresponds to the lower end of the workpiece fixing member.

Description

Technical Field

[0001] This invention relates to the field of machining of metal wires, and particularly to a metal wire forming apparatus. Background Technology

[0002] In machining, metal wires often require stamping and forming processes. For example, in the forming process of stator hairpins for new energy vehicles, after multiple bending, they must be stamped into a predetermined shape. Currently, during the stamping and forming process of stator hairpins, it is impossible to fix them well, and displacement occurs during the forming process, which reduces the processing accuracy of the stator hairpins and affects subsequent production. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a metal wire forming device that solves the problem of metal wire displacement and improves the processing accuracy of metal wire.

[0004] The technical solution of the present invention is as follows: a metal wire forming device, comprising a base, an upper forming mechanism and a lower forming mechanism disposed on the base, the upper forming mechanism comprising a mounting plate, a bracket fixedly disposed on the upper end of the mounting plate, a workpiece fixing member movable up and down disposed on one side of the bracket, the lower end of the workpiece fixing member extending downward for pressing and fixing the metal wire, the mounting plate having a clearance hole for the lower end of the workpiece fixing member to pass through, a forming punch fixedly disposed on the lower end of the mounting plate, the lower end surface of the forming punch being a forming surface conforming to the shape of the finished metal wire; the lower forming mechanism comprising a lower die base and a forming die corresponding to the forming punch, the forming die being fixed on the lower die base, the lower die base being driven by a first motor and causing the forming die to move up and down together, the upper end surface of the forming die being a forming surface conforming to the shape of the finished metal wire, and the upper end of the forming die corresponding to the lower end of the workpiece fixing member.

[0005] A second motor is fixedly mounted on the bracket. The motor shaft of the second motor is connected to a drive block. A nut is fixedly mounted on the drive block. The motor shaft of the second motor is threadedly engaged with the nut to drive the drive block to move up and down. A guide rod is fixedly mounted on the drive block. A connecting plate is slidably engaged on the guide rod. A limiting flange is provided at the lower end of the guide rod to prevent the connecting plate from dislodging. A spring is sleeved on the guide rod. The spring is located between the drive block and the connecting plate. The workpiece fixing component is connected to the lower end of the connecting plate.

[0006] A guide seat is fixedly connected to the bracket, and an upwardly extending guide post is provided at the upper end of the drive block. The guide post slides and a through hole is provided on the guide seat to form a guide.

[0007] The second motor is fixedly mounted on the guide seat, and the guide seat is provided with a through hole for the motor shaft of the second motor to pass through.

[0008] The lower end of the connecting plate is provided with a fixing seat, the lower end of the fixing seat is provided with a "T" shaped groove, the upper end of the workpiece fixing component is provided with a limiting boss, the limiting boss is inserted into the "T" shaped groove in the horizontal direction, and the workpiece fixing component is connected to the fixing seat.

[0009] The lower end of the workpiece fixing component is provided with two workpiece claws, and the upper end face of the forming die is provided with a groove corresponding to the workpiece claws. The groove is for the workpiece claws to be inserted to fix the metal wire between the two workpiece claws.

[0010] The mounting plate has a guide rail at its lower end, and a guide slider slides on the guide rail. The guide slider is connected to an anti-warping pressure block through a connecting block. The connecting block is driven by a driving mechanism and moves the anti-warping pressure block left and right together. The lower end of the anti-warping pressure block corresponds to the suspended tail of the metal wire.

[0011] The driving mechanism includes a rotating shaft and a driving slider. The driving slider is provided with a threaded hole. The rotating shaft is threadedly engaged with the threaded hole. The rotating shaft is driven to rotate by a third motor, which drives the driving slider to move left and right. The driving slider is fixedly connected to the connecting block.

[0012] The forming lower mechanism also includes a clamping air claw, which is located on one side of the forming die and is used to clamp the metal wire for pre-positioning.

[0013] A hopper is provided on one side of the forming die, and the hopper is lower than the forming surface of the forming die.

[0014] The above technical solution includes a base, on which an upper forming mechanism and a lower forming mechanism are mounted. The upper forming mechanism includes a mounting plate, with a bracket fixedly mounted on the upper end of the mounting plate. A workpiece fixing component that can move up and down is mounted on one side of the bracket. The lower end of the workpiece fixing component extends downward to press and fix the metal wire. The mounting plate has a clearance hole for the lower end of the workpiece fixing component to pass through. A forming punch is fixedly mounted on the lower end of the mounting plate. The lower end face of the forming punch is a forming surface that matches the shape of the finished metal wire. The lower forming mechanism includes a lower die base and a forming die corresponding to the forming punch. The forming die is fixed on the lower die base. The lower die base is driven by a first motor and moves the forming die up and down together. The upper end face of the forming die is a forming surface that matches the shape of the finished metal wire. The upper end of the forming die corresponds to the lower end of the workpiece fixing component.

[0015] In the aforementioned metal wire forming device, the workpiece fixing component can move up and down. During metal wire forming, the metal wire is first placed on the forming die, then the workpiece fixing component moves downwards, pressing the metal wire down to secure it. Finally, the first motor drives the forming die upwards. Through the cooperation between the forming die and the forming punch, the metal wire adheres to the forming surface of both the die and punch, completing one forming operation. During the upward movement of the forming die, the workpiece fixing component simultaneously pushes the workpiece fixing component upwards as well. This means the workpiece fixing component makes way for the upward movement of the forming die, maintaining the fixing of the metal wire. This secure fixing prevents wire displacement, improves processing accuracy, and ensures a smooth transition for subsequent manufacturing processes.

[0016] Furthermore, a second motor is fixedly mounted on the bracket. The motor shaft of the second motor is connected to a drive block. A nut is fixedly mounted on the drive block, and the motor shaft of the second motor is threadedly engaged with the nut to drive the drive block to move up and down. A guide rod is fixedly mounted on the drive block, and a connecting plate is slidably fitted on the guide rod. A limiting flange to prevent the connecting plate from dislodging is provided at the lower end of the guide rod. A spring is sleeved on the guide rod, and the spring is located between the drive block and the connecting plate. The workpiece fixing component is connected to the lower end of the connecting plate. The drive block has a hole to allow space for the motor shaft of the second motor. During the forming process, the second motor drives the drive block to move downward. The drive block simultaneously drives the connecting plate and the workpiece fixing component to move downward together until the lower end of the workpiece fixing component contacts the metal wire, fixing the metal wire onto the forming die. Afterward, the forming die moves upward, simultaneously pushing the workpiece fixing component upward. During this process, the connecting plate compresses the spring, shortening the distance between the connecting plate and the drive block, thereby creating space for the forming die to move upward and stabilizing the workpiece fixing component's fixation of the metal wire.

[0017] Furthermore, a guide seat is fixedly connected to the bracket, and an upwardly extending guide post is provided at the upper end of the drive block. The guide post slides into a through hole on the guide seat to form a guide. Through the sliding engagement between the guide seat and the guide post, the up and down movement of the workpiece fixing component is made more stable.

[0018] Furthermore, the second motor is fixedly mounted on the guide seat, which has a through hole for the motor shaft of the second motor to pass through. Mounting the second motor on the guide seat provides better support and facilitates integrated installation.

[0019] Furthermore, the lower end of the connecting plate is provided with a fixing seat, the lower end of the fixing seat is provided with a "T" shaped groove, and the upper end of the workpiece fixing component is provided with a limiting boss. The limiting boss is inserted into the "T" shaped groove in the horizontal direction, connecting the workpiece fixing component to the fixing seat. The installation of the workpiece fixing component is simple.

[0020] Furthermore, the lower end of the workpiece fixing component is provided with two workpiece claws, and the upper surface of the forming die is provided with a groove corresponding to the workpiece claws. The groove is for the workpiece claws to be inserted into, fixing the metal wire between the two workpiece claws. The cooperation between the workpiece claws and the grooves improves the stability of the workpiece fixing component in fixing the metal wire.

[0021] Furthermore, a guide rail is provided at the lower end of the mounting plate, on which a guide slider slides. The guide slider is connected to an anti-warping pressure block via a connecting block. The connecting block is driven by a driving mechanism, causing the anti-warping pressure block to move left and right together. The lower end of the anti-warping pressure block corresponds to the suspended tail of the metal wire. When the tail of the metal wire does not need to be formed, it is often in a suspended state. By pressing down the suspended tail with the anti-warping pressure block, it is possible to prevent the suspended tail from warping due to uneven force during the forming process, thereby further improving the processing accuracy.

[0022] Furthermore, the driving mechanism includes a rotating shaft and a driving slider. The driving slider has a threaded hole, and the rotating shaft is threaded into the threaded hole. The rotating shaft is driven to rotate by a third motor, causing the driving slider to move left and right. The driving slider is fixedly connected to the connecting block. The driving mechanism has a simple structure, and the rotating shaft can be connected to the lower end of the mounting plate via a support.

[0023] Furthermore, the forming lower mechanism also includes a clamping gripper, which is located on one side of the forming die and is used to clamp the metal wire for pre-positioning. The clamping gripper can pre-clamp the metal wire to be formed, preventing the metal wire from shifting before the workpiece fixing component fixes it.

[0024] Furthermore, a hopper is provided on one side of the forming die, and the hopper is lower than the forming surface of the forming die. The hopper facilitates the collection of finished metal wire.

[0025] In the aforementioned metal wire forming device, the workpiece fixing component can move up and down. When the workpiece fixing component moves downwards, it presses down on the metal wire to secure it. Furthermore, during the upward movement of the forming die, the workpiece fixing component allows space for the upward movement of the forming die while maintaining the fixing of the metal wire. By fixing the metal wire with the workpiece fixing component, displacement of the metal wire is prevented, improving the processing accuracy of the metal wire and providing assurance for subsequent manufacturing processes.

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0027] Figure 1 A schematic diagram of a metal wire forming device;

[0028] Figure 2 A schematic diagram showing the upper forming mechanism and the lower forming mechanism arranged relative to each other.

[0029] Figure 3 This is a schematic diagram of the upper forming mechanism;

[0030] Figure 4 This is a schematic diagram of the drive mechanism;

[0031] Figure 5 This is a schematic diagram of the structure between the drive block and the connecting plate.

[0032] Figure 6 A schematic diagram of a spring being compressed by a connecting plate;

[0033] Figure 7 A schematic diagram showing that hoppers and clamping grippers are respectively installed on the front and rear sides of the forming die.

[0034] Figure 8 This is a schematic diagram of the forming die.

[0035] In the attached diagram, 1 is the base, 2 is the mounting plate, 2-1 is the clearance hole, 3 is the bracket, 4 is the workpiece fixing component, 4-1 is the workpiece chuck, 5 is the metal wire, 6 is the guide seat, 7 is the drive block, 7-1 is the guide post, 7-2 is the guide rod, 7-3 is the limiting flange, 8 is the second motor, 9 is the forming punch, 10 is the forming die, 10-2 is the groove, 11 is the hopper, 12 is the first motor, 13 is the upper forming mechanism, 14 is the lower forming mechanism, 15 is the drive mechanism, 15-1 is the drive slider, 15-2 is the rotating shaft, 16 is the anti-warping pressure block, 17 is the fixed seat, 18 is the connecting plate, 19 is the spring, 20 is the connecting block, 21 is the support seat, 22 is the guide rail, 23 is the guide slider, and 24 is the clamping pneumatic gripper. Detailed Implementation

[0036] See Figures 1 to 8A metal wire forming device includes a base 1, which may be made of metal. An upper forming mechanism 13 and a lower forming mechanism 14 are mounted on the base 1. The upper forming mechanism 13 includes a mounting plate 2, which can be directly connected and fixed to the base 1, or it can be connected and fixed to the base 1 via a support frame. A bracket 3 is fixedly mounted on the upper end of the mounting plate 2. A workpiece fixing member 4, which can move up and down, is provided on one side of the bracket 3. The lower end of the workpiece fixing member 4 extends downward to press and fix the metal wire 5. The mounting plate 2 has a clearance hole 2-1 for the lower end of the workpiece fixing member 4 to pass through. A forming punch 9 is fixedly mounted on the lower end of the mounting plate 2. The lower end surface of the forming punch 9 is a forming surface that matches the shape of the finished metal wire 5.

[0037] The lower forming mechanism 14 of the device includes a lower mold base and a forming die 10 corresponding to the forming punch 9. The forming die 10 is fixed on the lower mold base, which is driven by a first motor 12 and moves the forming die 10 up and down together. The upper end surface of the forming die 10 is a forming surface that matches the shape of the finished metal wire 5, and the upper end of the forming die 10 corresponds to the lower end of the workpiece fixing member 4. The lower forming mechanism 14 also includes a clamping gripper 24, which is located on one side of the forming die 10 and is used to clamp the metal wire 5 for pre-positioning. The clamping gripper 24 can pre-clamp the metal wire 5 to be formed, which can prevent the metal wire 5 from shifting before the workpiece fixing member 4 fixes the metal wire 5. A hopper 11 is provided on one side of the forming die 10, and the hopper 11 is lower than the forming surface 10-1 of the forming die. The hopper 11 facilitates the collection of the finished metal wire 5. Furthermore, the lower end of the workpiece fixing member 4 is provided with two workpiece claws 4-1, and the upper end surface of the forming die 10 is provided with a groove 10-2 corresponding to the workpiece claws 4-1. The groove 10-2 allows the workpiece claws 4-1 to be inserted, fixing the metal wire 5 between the two workpiece claws 4-1. The cooperation between the workpiece claws 4-1 and the groove 10-2 improves the stability of the workpiece fixing member 4 in fixing the metal wire 5.

[0038] Furthermore, a second motor 8 is fixedly mounted on the bracket 3. The motor shaft of the second motor 8 is connected to a drive block 7. A nut is fixedly mounted on the drive block 7, and the motor shaft of the second motor 8 is threadedly engaged with the nut to drive the drive block 7 to move up and down. A guide rod 7-2 is fixedly mounted on the drive block 7, and a connecting plate 18 is slidably fitted on the guide rod 7-2. A limiting flange 7-3 is provided at the lower end of the guide rod 7-2 to prevent the connecting plate 18 from dislodging. A spring 19 is sleeved on the guide rod 7-2, and the spring 19 is located between the drive block 7 and the connecting plate 18. The workpiece fixing member 4 is connected to the lower end of the connecting plate 18. The drive block 7 has a hole to allow space for the motor shaft of the second motor 8. During the forming process, the second motor 8 drives the drive block 7 to move downward. The drive block 7 simultaneously drives the connecting plate 18 and the workpiece fixing member 4 to move downward together until the lower end of the workpiece fixing member 4 contacts the metal wire 5, fixing the metal wire 5 onto the forming die 10. Then the forming die 10 moves upward, pushing the workpiece fixing part 4 upward. During this process, the connecting plate 18 will compress the spring 19, shortening the distance between the connecting plate 18 and the drive block 7, thereby creating clearance for the forming die 10 to move upward, and the workpiece fixing part 4 to fix the metal wire 5 stably.

[0039] Furthermore, a guide seat 6 is fixedly connected to the bracket 3, and an upwardly extending guide post 7-1 is provided at the upper end of the drive block 7. The guide post 7-1 slides and engages with the through hole provided on the guide seat 6 to form a guide. Through the sliding engagement between the guide seat 6 and the guide post 7-1, the up and down movement of the workpiece fixing member 4 is made more stable. The second motor 8 is fixedly mounted on the guide seat 6, and the guide seat 6 is provided with a through hole for the motor shaft of the second motor 8 to pass through. Placing the second motor 8 on the guide seat 6 provides better support for the second motor 8 and facilitates integrated installation. A fixing seat 17 is provided at the lower end of the connecting plate 18. A "T"-shaped groove is provided at the lower end of the fixing seat 17, and a limiting boss is provided at the upper end of the workpiece fixing member 4. The limiting boss is inserted into the "T"-shaped groove in the horizontal direction, connecting the workpiece fixing member 4 to the fixing seat 17. The installation of the workpiece fixing member 4 is simple.

[0040] Furthermore, the lower end of the mounting plate 2 is provided with a guide rail 22, on which a guide slider 23 slides. The guide slider 23 is connected to an anti-warping pressure block 16 via a connecting block 20. The connecting block 20 is driven by a driving mechanism 15 and moves the anti-warping pressure block 16 left and right together. The lower end of the anti-warping pressure block 16 corresponds to the suspended tail of the metal wire 5. When the tail of the metal wire 5 does not need to be formed, it is often in a suspended state. By pressing down the suspended tail with the anti-warping pressure block 16, it can prevent the suspended tail from warping due to uneven force during the forming process, further improving the processing accuracy. The driving mechanism 15 includes a rotating shaft 15-2 and a driving slider 15-1. The driving slider 15-1 is provided with a threaded hole, and the rotating shaft 15-2 is threadedly engaged with the threaded hole. The rotating shaft 15-2 is driven by a third motor to rotate and move the driving slider 15-1 left and right. The driving slider 15-1 is fixedly connected to the connecting block 20. The drive mechanism 15 has a simple structure. The rotating shaft 15-2 can be connected to the lower end of the mounting plate 2 through the support seat 21. A bearing can be installed between the rotating shaft 15-2 and the support seat 21.

[0041] Furthermore, when the metal wire 5 has a U-shaped structure, and the specific part to be formed is the bottom of the U-shape, the metal wire 5 is placed on the forming die 10, and one arm of the U-shape is clamped by the clamping gripper 24. Then, the workpiece fixing member 4 moves downward to press down on the two arms of the U-shape. After that, the clamping gripper 24 can be released, allowing the forming die 10 to move upward for forming. At this time, the lower end of the connecting plate 18 is connected to two workpiece fixing members 4, which correspond to the two arms of the U-shape respectively. The forming die 10 is also provided with two pairs of grooves 10-2 corresponding to the workpiece claws 4-1 of the workpiece fixing members 4, and two anti-lifting pressure blocks 16 are also provided corresponding to the two arms of the U-shape to prevent the suspended tail from lifting.

[0042] In the aforementioned metal wire forming device, the workpiece fixing member 4 can move up and down. When forming the metal wire 5, the metal wire 5 is first placed on the forming die 10, and then the workpiece fixing member 4 moves downwards, pressing down on the metal wire 5 to fix it in place. Finally, the first motor 12 drives the forming die 10 to move upwards. Through the cooperation between the forming die 10 and the forming punch 9, the metal wire 5 is brought into contact between the forming surface 10-1 of the forming die and the forming surface 9-1 of the forming punch, thus completing one forming operation. During the upward movement of the forming die 10, the forming die 10 simultaneously pushes the workpiece fixing member 4 upwards as well. That is, the workpiece fixing member 4 makes way for the upward movement of the forming die 10, and moves upwards together with the forming die 10, maintaining the fixing action on the metal wire 5, thus ensuring the metal wire 5 is securely fixed. By fixing the metal wire with the workpiece fixing component 4, displacement of the metal wire is avoided, the processing accuracy of the metal wire is improved, and a guarantee is provided for subsequent production.

Claims

1. A metal wire forming apparatus, characterized in that: The device includes a base, on which an upper forming mechanism and a lower forming mechanism are mounted. The upper forming mechanism includes a mounting plate, with a bracket fixedly mounted on the upper end of the mounting plate. A workpiece fixing component that can move up and down is mounted on one side of the bracket. The lower end of the workpiece fixing component extends downward to press and fix the metal wire. The mounting plate has a clearance hole for the lower end of the workpiece fixing component to pass through. A forming punch is fixedly mounted on the lower end of the mounting plate. The lower end face of the forming punch is a forming surface that matches the shape of the finished metal wire. The lower forming mechanism includes a lower die base and a forming die corresponding to the forming punch. The forming die is fixed on the lower die base. The lower die base is driven by a first motor and moves the forming die up and down together. The upper end face of the forming die is a forming surface that matches the shape of the finished metal wire. The upper end of the forming die corresponds to the lower end of the workpiece fixing component. The mounting plate has a guide rail at its lower end, and a guide slider slides on the guide rail. The guide slider is connected to an anti-warping pressure block through a connecting block. The connecting block is driven by a driving mechanism and moves the anti-warping pressure block left and right together. The lower end of the anti-warping pressure block corresponds to the suspended tail of the metal wire. The driving mechanism includes a rotating shaft and a driving slider. The driving slider is provided with a threaded hole. The rotating shaft is threadedly engaged with the threaded hole. The rotating shaft is driven to rotate by a third motor, which drives the driving slider to move left and right. The driving slider is fixedly connected to the connecting block.

2. The metal wire forming apparatus according to claim 1, characterized in that: A second motor is fixedly mounted on the bracket. The motor shaft of the second motor is connected to a drive block. A nut is fixedly mounted on the drive block. The motor shaft of the second motor is threadedly engaged with the nut to drive the drive block to move up and down. A guide rod is fixedly mounted on the drive block. A connecting plate is slidably engaged on the guide rod. A limiting flange is provided at the lower end of the guide rod to prevent the connecting plate from dislodging. A spring is sleeved on the guide rod. The spring is located between the drive block and the connecting plate. The workpiece fixing component is connected to the lower end of the connecting plate.

3. The metal wire forming apparatus according to claim 2, characterized in that: A guide seat is fixedly connected to the bracket, and an upwardly extending guide post is provided at the upper end of the drive block. The guide post slides and a through hole is provided on the guide seat to form a guide.

4. The metal wire forming apparatus according to claim 3, characterized in that: The second motor is fixedly mounted on the guide seat, and the guide seat is provided with a through hole for the motor shaft of the second motor to pass through.

5. The metal wire forming apparatus according to claim 2, characterized in that: The lower end of the connecting plate is provided with a fixing seat, the lower end of the fixing seat is provided with a "T" shaped groove, the upper end of the workpiece fixing member is provided with a limiting boss, the limiting boss is inserted into the "T" shaped groove in the horizontal direction, and the workpiece fixing member is connected to the fixing seat.

6. The metal wire forming apparatus according to claim 1, characterized in that: The lower end of the workpiece fixing component is provided with two workpiece claws, and the upper end face of the forming die is provided with a groove corresponding to the workpiece claws. The groove is for the workpiece claws to be inserted to fix the metal wire between the two workpiece claws.

7. The metal wire forming apparatus according to claim 1, characterized in that: The forming lower mechanism also includes a clamping air claw, which is located on one side of the forming die and is used to clamp the metal wire for pre-positioning.

8. The metal wire forming apparatus according to claim 1, characterized in that: A hopper is provided on one side of the forming die, and the hopper is lower than the forming surface of the forming die.

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