Transformer pin bending device
By designing an automated transformer foot bending device, using push rods and drive components to drive bend blocks and pre-fold blocks, the problem of low manual bending efficiency is solved, efficient and accurate pin bending is achieved, and transformer connection is ensured. stability.
Patent Information
- Application Number
- CN202421084177.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the prior art, the transformer pin bending process relies on manual operation, resulting in low efficiency and inconsistent results, and lack of automated solutions.
Design a transformer foot bending device, including a push rod and a drive assembly, drive the push rod to push the bending block through the drive assembly, automatically bending the pins using the tiger's mouth and hawk hook on the bending block, and store energy through the elastic parts and Release realizes reset of bent blocks and pre-folded blocks, improving bending efficiency and accuracy.
It improves the working efficiency and effect of pin bending, reduces the safety risks of manual operation, realizes an automated pin bending process, and ensures a stable connection between the transformer coil and the pin.
Smart Images
Figure CN222307181U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of transformer production, and in particular to a transformer leg bending device. Background Art
[0002] During the manufacturing process of the transformer, in order to ensure a reliable connection between the transformer coil and the pin, the pin is usually passed through the entire coil and electrically connected to the coil. Therefore, the other end of the pin must be bent before wrapping with tape and passing through the iron core. The bent pin is wrapped around the outside of the coil to further ensure a stable connection between the transformer coil and the pin.
[0003] At present, in the related technology, the pins are usually bent by manual operation. The manual operation not only has low work efficiency, but also affects the bending effect due to different manual operation skills.
[0004] Therefore, how to improve the working efficiency of bending the pins and ensure the effect of bending the transformer pins is a problem that technical personnel in this field need to solve urgently. Utility Model Content
[0005] In order to improve the working efficiency of bending pins and ensure the bending effect of transformer pins, the present application provides a transformer pin bending device.
[0006] The transformer leg bending device provided in this application adopts the following technical solution:
[0007] A transformer foot bending device comprises a mounting seat, to which a push rod for pushing a transformer is slidably connected, one end of the push rod is provided with a driving assembly transmission-connected to the push rod, and the end of the push rod away from the driving assembly is symmetrically provided with two bending blocks rotatably connected to the mounting seat, the bending blocks are symmetrically arranged with respect to the center plane of the push rod, the bending block is provided with a tiger's mouth toward the end of the push rod, a pressing surface and a bending surface are formed on the tiger's mouth, the pressing surface faces the end of the push rod, and the bending surface faces the side of the push rod.
[0008] By adopting the above technical solution, the push rod is driven by the driving component to push the transformer to press against the bending block. The tiger's mouth design on the bending block can push the pressing surface through the end of the transformer to rotate the bending block during the movement of the transformer. After the bending block rotates, the bending surface will bend the pins of the transformer so that the pins are wrapped around the outside of the coil of the transformer. This design not only improves the work efficiency of bending the pins, but also ensures the effect of bending the pins of the transformer.
[0009] Optionally, two fixing columns fixedly connected to the mounting seat are provided on the outside of the bending block, and a first elastic member is installed on the fixing column, one end of the first elastic member is fixed to the fixing column, and the other end of the first elastic member is fixedly connected to the corresponding bending block so that the tiger's mouth on the bending block swings in a direction away from the center of the push rod.
[0010] By adopting the above technical solution, the first elastic member can store energy after the bending block rotates. When the driving assembly drives the push rod to retract, the kinetic energy released by the first elastic member can pull the bending block to swing in a direction away from the center of the push rod. On the one hand, the bending block can be restored to its initial state to facilitate the next bending operation; on the other hand, the clamping of the tiger's mouth on the transformer can be released to facilitate the removal of the bent transformer.
[0011] Optionally, two pre-folding blocks rotatably connected to the mounting seat are provided on the outside of one end of the bending block close to the driving assembly, the pre-folding blocks are symmetrically arranged with respect to the center plane of the push rod, and the pre-folding block is provided with an eagle beak hook facing the push rod, and the two eagle beak hooks are correspondingly hooked with the pins of the transformer.
[0012] By adopting the above technical solution, before the driving component drives the push rod to push the transformer against the bending block, the pins on the transformer that need to be bent will first be pressed against the hawk's beak hook on the pre-folding block, and the pre-folding block will be driven to rotate by the hawk's beak hook. During the rotation of the pre-folding block, the hawk's beak hook will continue to hook the pins on the transformer that need to be bent, so that the hawk's beak hook on the pre-folding block is used to bend the pins of the transformer outward in advance, thereby further ensuring the effect of bending the pins of the transformer using the bending surface after the bending block rotates.
[0013] Optionally, a second elastic member is installed on the fixed column, one end of the second elastic member is fixed on the fixed column, and the other end of the second elastic member is fixedly connected to the corresponding pre-folding block so that the hawk's beak hook on the pre-folding block is offset in a direction close to the driving assembly.
[0014] By adopting the above-mentioned technical solution, the second elastic member can store energy after the pre-folding block rotates. When the pins of the transformer are bent outward by the hawk's beak hook and pass over the hawk's beak hook, the kinetic energy released by the second elastic member can be used to pull the pre-folding block to swing in the opposite direction, so that after the driving component drives the push rod to retreat, the pre-folding block can be restored to its initial state and the next pre-folding operation can be carried out.
[0015] Optionally, two L-shaped brackets fixedly connected to the mounting seat are provided on the outside of one side of the pre-folding block close to the driving assembly, and the L-shaped brackets are symmetrically arranged with respect to the center plane of the push rod. A connecting block is fixedly connected between the two L-shaped brackets, and a feed channel is provided on the connecting block corresponding to the shape of the transformer, a guide hole is provided on the connecting block corresponding to the cross-sectional shape of the push rod, and a discharge channel is provided on the connecting block corresponding to the length direction of the push rod.
[0016] By adopting the above technical solution, the transformer with the pins to be folded can be conveniently placed on the end of the push rod by utilizing the feed channel opened on the connecting block, which can not only avoid safety issues when the staff manually places the transformer, but also help to ensure the accuracy and work efficiency of the staff placing the transformer on the end of the push rod; and the guide hole can also improve the stability of the push rod during the movement, and the discharge channel can ensure the accuracy of the transformer accurately abutting against the pre-folding block and the bending block under the thrust of the push rod.
[0017] Optionally, the drive assembly includes a first pin fixedly mounted on the end of the push rod, a connecting rod is rotatably connected to the first pin, a motor is fixedly mounted on the mounting seat, a transmission is transmission-connected to the output shaft of the motor, a crank is transmission-connected to the output shaft of the transmission, and an end of the crank away from the transmission is hingedly connected to an end of the connecting rod away from the first pin.
[0018] By adopting the above technical solution, the motor can drive the crank to rotate through the transmission. During the rotation of the crank, the push rod can be driven to reciprocate through the connecting rod. The speed of the crank rotation can also be controlled by the transmission, thereby controlling the reciprocating speed of the push rod. In this way, the push rod can push the transformer at a suitable speed to perform pin bending operations.
[0019] Optionally, the driving assembly includes a rotating seat fixedly mounted on the mounting seat, a rocker arm is rotatably connected to the rotating seat, a sliding groove is provided on the rocker arm, a second pin is installed at the end of the push rod, the second pin is passed through the sliding groove and is slidably connected to the rocker arm, and a handle is rotatably connected to one end of the rocker arm away from the rotating seat.
[0020] By adopting the above technical solution, the staff can directly use the handle to drive the rocker arm to swing around the center of the rotating seat. During the swinging process, the rocker arm can drive the push rod to reciprocate through the second pin shaft. In this way, the push rod can push the transformer at a suitable speed to perform pin bending operations under the action of manpower.
[0021] Optionally, a protective pad is fixedly bonded to the pressing surface and the bending surface of the jaws, and the protective pad is made of a soft elastic material.
[0022] By adopting the above technical solution, the protective pad can be used to protect the main body of the transformer during the pin bending process, thereby preventing the bending block from damaging the main body of the transformer.
[0023] Optionally, a sliding seat is fixedly mounted on the mounting seat, the push rod is slidably connected to the sliding seat, and a positioning block is provided at one end of the push rod away from the driving assembly corresponding to the iron core mounting hole on the transformer, and the positioning block can be inserted into the iron core mounting hole on the transformer.
[0024] By adopting the above technical solution, the push rod is slidably installed using a sliding seat, which can ensure the stability of the push rod during the reciprocating movement. At the same time, a positioning block is opened at the end of the push rod. When the push rod pushes the transformer, the positioning block can be inserted into the iron core mounting hole on the transformer. This can further ensure the stability and reliability of the push rod in the process of pushing the transformer.
[0025] Optionally, a blanking hole is provided on the mounting seat at a position corresponding to the bending block, and a size of the blanking hole is larger than a size of the transformer.
[0026] By adopting the above technical solution, after the pins of the transformer are bent, the kinetic energy released by the first elastic member is used to pull the bending block to swing in a direction away from the center of the push rod, thereby releasing the clamping of the transformer by the tiger's mouth. The transformer can then fall directly from between the two symmetrically arranged bending blocks through the blanking hole, which not only avoids the safety hazards caused by manual removal, but also helps to improve work efficiency.
[0027] In summary, the present application includes at least one of the following beneficial technical effects:
[0028] 1. The present application drives the push rod through the driving component to push the transformer to press on the bending block. The tiger's mouth design on the bending block can push the pressing surface through the end of the transformer to rotate the bending block during the movement of the transformer. After the bending block rotates, the bending surface will bend the pins of the transformer so that the pins are wrapped around the outside of the coil of the transformer; this design not only improves the work efficiency of bending the pins, but also ensures the effect of bending the pins of the transformer.
[0029] 2. The present application sets a pre-folding block on the outside of one end of the bending block close to the driving assembly, and the hawk's beak hook on the pre-folding block can be used to bend the pins of the transformer outward in advance, thereby further ensuring the effect of bending the pins of the transformer using the bending surface after the bending block is rotated.
[0030] 3. The present application utilizes the feed channel opened on the connecting block to conveniently place the transformer with pins to be folded on the end of the push rod, which can not only avoid safety issues when the staff manually places it, but also help to ensure the accuracy and work efficiency of the staff in placing the transformer on the end of the push rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a partial structural diagram of an embodiment of the present application.
[0032] Figure 2 yes Figure 1 An enlarged schematic diagram of the first part of the structure.
[0033] Figure 3 yes Figure 1 An enlarged schematic diagram of the second part of the structure.
[0034] Figure 4 yes Figure 1 Schematic diagram of the plane structure in the A direction.
[0035] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure along the BB axis.
[0036] Figure 6 It is a schematic diagram of the structural assembly state of an embodiment of the present application.
[0037] Figure 7 It is a schematic diagram of the structural assembly state of another embodiment of the present application.
[0038] Description of reference numerals: 100, mounting seat; 101, transformer; 102, sliding seat; 103, blanking hole; 104, first round shaft; 105, second round shaft; 106, protective cover; 107, observation hole; 200, push rod; 201, positioning block; 300, driving assembly; 301, first pin shaft; 302, connecting rod; 303, motor; 304, crank; 305, transmission; 306, rotating seat; 307, swing rod; 308, slide groove; 309, second pin shaft; 310, handle; 400, bending block; 401, tiger's mouth; 4011, pressing surface; 4012, bending surface; 402, protective pad; 500, fixing column; 501, first elastic member; 502, second elastic member; 600, pre-folding block; 601, hawk's beak hook; 700, L-shaped bracket; 701, connecting block; 702, feeding channel; 703, guide hole; 704, discharging channel. DETAILED DESCRIPTION
[0039] The following is combined with Figure 1-7 This application is described in further detail.
[0040] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0042] The embodiment of the present application discloses a transformer leg bending device.
[0043] Please refer to Figure 1 and Figure 2 A transformer foot bending device includes a mounting seat 100, on which two sliding seats 102 are fixedly mounted, the sliding seats 102 are arranged along the length direction of the mounting seat 100, and a push rod 200 is slidably connected to the sliding seat 102. A driving assembly 300 is provided on the outside of one end of the push rod 200, and the driving assembly 300 is transmission-connected to the push rod 200, so that the driving assembly 300 can drive the push rod 200 to reciprocate. During operation, it is only necessary to place the transformer at the front end of the push rod 200, and the push rod 200 can push the transformer 101 to move under the action of the driving assembly 300.
[0044] Please refer to Figure 1 , Figure 2 and Figure 4In one embodiment of the present application, two first circular shafts 104 are symmetrically fixedly connected to the outside of the end of the push rod 200 away from the driving assembly 300 on the mounting seat 100, and the first circular shafts 104 are rotatably connected to the two bending blocks 400. The two bending blocks 400 are symmetrically arranged with respect to the center plane of the push rod 200, and the bending blocks 400 are provided with a jaw 401 facing the end of the push rod 200, and a pressing surface 4011 and a bending surface 4012 are formed on the jaw 401. The pressing surface 4011 faces the end of the push rod 200, and the bending surface 4012 is provided on the jaw 401. The bent surface 4012 faces the side of the push rod 200, so that when the push rod 200 pushes the transformer 101 to move under the action of the driving component 300, the end of the transformer 101 will push the pressing surface 4011 to rotate the bending block 400. After the bending block 400 rotates, the bending surface 4012 will bend the pins of the transformer 101 so that the pins are wrapped around the outside of the coil of the transformer 101; this design not only improves the work efficiency of bending the pins, but also ensures the effect of bending the pins of the transformer.
[0045] Please refer to Figure 1 and Figure 4 In one embodiment of the present application, two symmetrically arranged fixing columns 500 are fixedly connected to the position outside the bending block 400 on the mounting seat 100, and a first elastic member 501 is installed on the fixing column 500. One end of the first elastic member 501 is fixed to the fixing column 500, and the other end of the first elastic member 501 is fixedly connected to the corresponding bending block 400 so that the tiger's mouth 401 on the bending block 400 swings in a direction away from the center of the push rod 200.
[0046] Please refer to Figure 1 , Figure 3 and Figure 4 In one embodiment of the present application, two second circular shafts 105 are symmetrically fixedly connected to the outside of one end of the bending block 400 near the driving assembly 300 on the mounting seat 100, and the second circular shafts 105 are rotatably connected with pre-folding blocks 600, which are symmetrically arranged with respect to the central plane of the push rod 200, and the pre-folding blocks 600 are provided with hawk beak hooks 601 at the position facing the push rod 200, and the two hawk beak hooks 601 are correspondingly hooked with the pins of the transformer 101. The hawk beak hooks 601 on the pre-folding blocks 600 can be used to bend the pins of the transformer 101 outward in advance, thereby further ensuring the effect of bending the pins of the transformer 101 by using the bending surface 4012 after the bending block 400 rotates.
[0047] Please refer to Figure 1 and Figure 4In one embodiment of the present application, a second elastic member 502 is installed on the fixed column 500, one end of the second elastic member 502 is fixed on the fixed column 500, and the other end of the second elastic member 502 is fixedly connected to the corresponding pre-folding block 600. The kinetic energy released by the second elastic member 502 can pull the pre-folding block 600 to swing in the opposite direction, so that after the driving component 300 drives the push rod 200 to retract, the pre-folding block 600 can be restored to its initial state to facilitate the next pre-bending operation.
[0048] In a specific embodiment of the present application, the first elastic member 501 and the second elastic member 502 are both configured as rubber elastic ropes with a certain elasticity. The rubber rope has good elasticity, low cost, and is easy to install and replace. Of course, in other embodiments of the present application, the first elastic member 501 and the second elastic member 502 can also be configured as tension springs or compression springs.
[0049] Please refer to Figure 4 and Figure 5 In one embodiment of the present application, two L-shaped brackets 700 fixedly connected to the mounting base 100 are provided on the outside of the pre-folding block 600 close to the driving assembly 300, and the L-shaped brackets 700 are symmetrically arranged with respect to the center plane of the push rod 200. A connecting block 701 is fixedly connected between the two L-shaped brackets 700, and a feed channel 702 is provided on the connecting block 701 corresponding to the shape of the transformer 101, a guide hole 703 is provided on the connecting block 701 corresponding to the cross-sectional shape of the push rod 200, and a discharge channel 704 is provided on the connecting block 701 corresponding to the length direction of the push rod 200.
[0050] Please refer to Figure 4 and Figure 5 In a specific embodiment of the present application, the height of the L-shaped bracket 700 can be greater than the height of multiple transformers 101 stacked together, so that multiple transformers 101 can be placed simultaneously in the middle of the feed channel 702, which is not only more convenient and quick to place the transformer 101, but also improves safety.
[0051] Please refer to Figure 6In one embodiment of the present application, the driving assembly 300 includes a first pin 301 fixedly mounted on the end of the push rod 200, a connecting rod 302 is rotatably connected to the first pin 301, a motor 303 is fixedly mounted on the mounting seat 100, a transmission 305 is transmission-connected to the output shaft of the motor 303, a crank 304 is transmission-connected to the output shaft of the transmission 305, and an end of the crank 304 away from the transmission 305 is hingedly connected to an end of the connecting rod 302 away from the first pin 301. The motor 303 can drive the crank 304 to rotate through the transmission 305, and the crank 304 can drive the push rod 200 to reciprocate through the connecting rod 302 during the rotation process, and the transmission 305 can also control the rotation speed of the crank 304, thereby achieving the control of the reciprocating speed of the push rod 200, so that the push rod 200 can push the transformer 101 at a suitable speed to perform the pin bending operation.
[0052] Please refer to Figure 7 In another embodiment of the present application, the driving assembly 300 includes a rotating seat 306 fixedly mounted on the mounting seat 100, a swing rod 307 is rotatably connected to the rotating seat 306, a slide slot 308 is provided on the swing rod 307, a second pin 309 is installed at the end of the push rod 200, the second pin 309 is inserted into the slide slot 308 and is slidably connected to the swing rod 307, and a handle 310 is rotatably connected to the end of the swing rod 307 away from the rotating seat 306. In this way, the handle 310 can be directly used to drive the swing rod 307 to swing at the center of the rotating seat 306, and the swing rod 307 can drive the push rod 200 to reciprocate through the second pin 309 during the swinging process, and the push rod 200 can be pushed by manpower at a suitable speed to push the transformer 101 to perform the pin bending operation.
[0053] Please refer to Figure 4 In a specific embodiment of the present application, a protective pad 402 is fixedly bonded to the pressing surface 4011 and the bending surface 4012 of the jaws 401, and the protective pad 402 is made of a soft elastic material. The protective pad 402 can be used to protect the main body of the transformer 101 during the pin bending process, thereby preventing the bending block 400 from damaging the main body of the transformer 101.
[0054] Please refer to Figure 5 In a specific embodiment of the present application, a positioning block 201 is provided at one end of the push rod 200 away from the driving assembly 300, corresponding to the iron core mounting hole on the transformer 101, and the positioning block 201 can be inserted into the iron core mounting hole on the transformer 101. The positioning block 201 is provided at the end of the push rod 200, and the positioning block 201 can be inserted into the iron core mounting hole on the transformer 101 during the process of the push rod 200 pushing the transformer 101, so that the stability and reliability of the push rod 200 in the process of pushing the transformer 101 can be further ensured.
[0055] Please refer to Figure 4 and Figure 5 In a specific embodiment of the present application, a blanking hole 103 is provided on the mounting base 100 at a position corresponding to the bending block 400. The size of the blanking hole 103 is larger than the size of the transformer 101. After the pins of the transformer 101 are bent, the transformer 101 can be dropped directly from between the two symmetrically arranged bending blocks 400 through the blanking hole 103, which not only avoids the safety hazards caused by manual removal, but also helps to improve work efficiency.
[0056] Please refer to Figure 6 and Figure 7 In a specific embodiment of the present application, a protective cover 106 is detachably connected to the position of the mounting seat 100 corresponding to the bending block 400 and the pre-folding block 600, and the first circular shaft 104 and the second circular shaft 105 are fixedly mounted on the protective cover 106 at one end away from the mounting seat 100. An observation hole 107 is provided on the protective cover 106 at a position corresponding to the blanking hole 103. During operation, the protective cover 106 can not only prevent external debris from falling into the bending block 400 or the pre-folding block 600 and interfering with the normal operation of the bending block 400 or the pre-folding block 600, but also increase the stability of the first circular shaft 104 and the second circular shaft 105 installed on the mounting seat 100, thereby ensuring the stability of the bending block 400 and the pre-folding block 600 during operation. At the same time, the bending condition of the transformer 101 pin can be directly observed through the observation hole 107.
[0057] The implementation principle of a transformer leg bending device in the embodiment of the present application is as follows:
[0058] First, multiple transformers 101 are placed in the feed channel 702 in sequence, and then the push rod 200 is driven to move back and forth by controlling the drive assembly 300, and the push rod 200 will push the transformer 101 to move. During the movement of the transformer 101, the pins on the transformer 101 that need to be bent will first press against the hawk beak hook 601 on the pre-folding block 600, and the pre-folding block 600 is driven to rotate by the hawk beak hook 601. During the rotation of the pre-folding block 600, the hawk beak hook 601 will continue to hook Hold the pins of the transformer 101 that need to be bent, and use the hawkbill hook 601 on the pre-folding block 600 to bend the pins of the transformer 101 outward in advance. After the pins of the transformer 101 are bent outward by the hawkbill hook 601 and pass over the hawkbill hook 601, the end of the transformer 101 will push the pressing surface 4011 to rotate the bending block 400. After the bending block 400 rotates, the bending surface 4012 will bend the pins of the transformer 101 so that the pins are wrapped around the outside of the coil of the transformer 101.
[0059] After the pins of the transformer 101 are bent, the kinetic energy released by the first elastic member 501 is used to pull the bending block 400 to swing in a direction away from the center of the push rod 200, thereby releasing the clamping of the tiger's mouth 401 on the transformer 101, and the transformer 101 can fall directly from between the two symmetrically arranged bending blocks 400 through the blanking hole 103, and the kinetic energy released by the first elastic member 501 can be used to pull the bending block 400 to swing in a direction away from the center of the push rod 200, so that the bending block 400 can be restored to its initial state, and the kinetic energy released by the second elastic member 502 can be used to pull the pre-folding block 600 to swing in the opposite direction, so that after the driving component 300 drives the push rod 200 to retreat, the pre-folding block 600 can be restored to its initial state, and the next bending operation can be performed.
[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A transformer leg bending device, characterized in that: The invention comprises a mounting seat (100), a push rod (200) for pushing a transformer (101) being slidably connected to the mounting seat (100), a driving assembly (300) being transmission-connected to the push rod (200) being arranged on the outside of one end of the push rod (200), two bending blocks (400) being rotationally connected to the mounting seat (100) being symmetrically arranged on the outside of one end of the push rod (200) away from the driving assembly (300), the bending blocks (400) being symmetrically arranged with respect to the central plane of the push rod (200), a tiger's mouth (401) being provided at the end of the bending block (400) facing the push rod (200), a pressing surface (4011) and a bending surface (4012) being formed on the tiger's mouth (401), the pressing surface (4011) facing the end of the push rod (200), and the bending surface (4012) facing the side of the push rod (200).
2. The transformer leg bending device according to claim 1, characterized in that: The outside of the bending block (400) is provided with two fixing columns (500) fixedly connected to the mounting seat (100), and a first elastic member (501) is installed on the fixing column (500), one end of the first elastic member (501) is fixed to the fixing column (500), and the other end of the first elastic member (501) is fixedly connected to the corresponding bending block (400) so that the jaws (401) on the bending block (400) swing in a direction away from the center of the push rod (200).
3. The transformer leg bending device according to claim 2, characterized in that: Two pre-folding blocks (600) are provided on the outside of one end of the bending block (400) close to the driving assembly (300), and are rotatably connected to the mounting seat (100). The pre-folding blocks (600) are symmetrically arranged with respect to the center plane of the push rod (200). The pre-folding blocks (600) are provided with hawkbill hooks (601) at positions facing the push rod (200), and the two hawkbill hooks (601) are correspondingly hooked with the pins of the transformer (101).
4. The transformer leg bending device according to claim 3, characterized in that: A second elastic member (502) is mounted on the fixed column (500), one end of the second elastic member (502) is fixed to the fixed column (500), and the other end of the second elastic member (502) is fixedly connected to the corresponding pre-folding block (600) so that the hawkbill hook (601) on the pre-folding block (600) is offset in a direction close to the driving assembly (300).
5. The transformer leg bending device according to claim 3, characterized in that: Two L-shaped brackets (700) fixedly connected to the mounting seat (100) are provided on the outside of one side of the pre-folding block (600) close to the driving assembly (300), and the L-shaped brackets (700) are symmetrically arranged with respect to the center plane of the push rod (200). A connecting block (701) is fixedly connected between the two L-shaped brackets (700), and a feeding channel (702) is provided on the connecting block (701) corresponding to the outer shape of the transformer (101), a guide hole (703) is provided on the connecting block (701) corresponding to the cross-sectional shape of the push rod (200), and a discharging channel (704) is provided on the connecting block (701) corresponding to the length direction of the push rod (200).
6. The transformer leg bending device according to claim 1, characterized in that: The driving assembly (300) comprises a first pin shaft (301) fixedly mounted on the end of the push rod (200), a connecting rod (302) being rotatably connected to the first pin shaft (301), a motor (303) being fixedly mounted on the mounting seat (100), a transmission (305) being transmission-connected to the output shaft of the motor (303), a crank (304) being transmission-connected to the output shaft of the transmission (305), and an end of the crank (304) away from the transmission (305) being hingedly connected to an end of the connecting rod (302) away from the first pin shaft (301).
7. The transformer leg bending device according to claim 1, characterized in that: The driving assembly (300) comprises a rotating seat (306) fixedly mounted on the mounting seat (100), a swing rod (307) being rotatably connected to the rotating seat (306), a slide groove (308) being provided on the swing rod (307), a second pin shaft (309) being mounted on the end of the push rod (200), the second pin shaft (309) being inserted into the slide groove (308) and being slidably connected to the swing rod (307), and a handle (310) being rotatably connected to one end of the swing rod (307) away from the rotating seat (306).
8. The transformer leg bending device according to claim 1, characterized in that: A protection pad (402) is fixedly bonded to the pressing surface (4011) and the bending surface (4012) of the jaws (401), and the protection pad (402) is made of a soft elastic material.
9. The transformer leg bending device according to any one of claims 1 to 8, characterized in that: A sliding seat (102) is fixedly mounted on the mounting seat (100), the push rod (200) is slidably connected to the sliding seat (102), and a positioning block (201) is provided at one end of the push rod (200) away from the driving assembly (300) corresponding to the iron core mounting hole on the transformer (101), and the positioning block (201) can be inserted into the iron core mounting hole on the transformer (101).
10. The transformer leg bending device according to any one of claims 1 to 8, characterized in that: A blanking hole (103) is provided on the mounting seat (100) at a position corresponding to the bending block (400), and the size of the blanking hole (103) is larger than the size of the transformer (101).