Relay coil lead winding head folding device

Abstract

The application discloses a relay coil lead-out piece winding head bending device, which comprises a bottom plate, a fixing base, a moving mechanism and a guide mechanism. The moving mechanism comprises a push plate, a left force transmission rod, a left pressing block, a left fixing shaft, a right force transmission rod, a right pressing block and a right fixing shaft. One end of the left pressing block is rotatably installed on the left fixing shaft. The left pressing block and the left end of the push plate are movably connected through the left force transmission rod. One end of the right pressing block is rotatably installed on the right fixing shaft. The right pressing block and the right end of the push plate are movably connected through the right force transmission rod. The lower ends of the left fixing shaft and the right fixing shaft are fixedly installed on the bottom plate or the fixing base. When the push plate moves towards the fixing base, the left and right pressing blocks are driven to rotate towards each other around the left and right fixing shafts under the action of the left and right force transmission rods, so that the left and right pressing blocks are pinched and narrowed, and two winding heads can be bent from the left and right sides until parallel to the lead-out feet. In this way, the bending efficiency can be greatly improved and consistency can be ensured.

Description

Technical Field

[0001] This invention belongs to the field of tooling and fixture technology, specifically a device for bending the winding head of a relay coil lead. Background Technology

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits and is essentially an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] Existing relays typically include a base, a magnetic circuit section, a push card, and contact parts. The magnetic circuit section may include a coil frame, coil leads, a yoke, an iron core, and an armature. The structures of the coil frame and coil leads are as follows: Figure 1 As shown, the coil lead includes a lead 2, an insertion part, and a winding head 3. The winding head 3 forms an angle with the lead 2 to facilitate tinning after winding the enameled wire. The tinned winding head 3 is then bent downwards until it is parallel to the lead 2. Existing technology typically uses simple tools to bend the tinned winding head 3, which is inefficient and makes it difficult to ensure consistency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a bending device for the winding head of a relay coil lead to improve efficiency and ensure consistency.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a relay coil lead winding head bending device, including a base plate and a fixed seat, a moving mechanism and a guiding mechanism mounted on the base plate; the moving mechanism includes a push plate, a left force transmission rod, a left pressure block, a left fixed shaft, a right force transmission rod, a right pressure block and a right fixed shaft, one end of the left pressure block is rotatably mounted on the left fixed shaft, the left pressure block is movably connected to the left end of the push plate through the left force transmission rod, one end of the right pressure block is rotatably mounted on the right fixed shaft, the right pressure block is movably connected to the right end of the push plate through the right force transmission rod, and the lower ends of the left and right fixed shafts are both fixedly mounted on the base plate or the fixed seat; when the push plate moves towards the fixed seat, under the action of the left and right force transmission rods, it will drive the left and right pressure blocks to rotate in opposite directions around the left and right fixed shafts respectively, so that the left and right pressure blocks are clamped together.

[0006] In use, place the relay coil holder onto the mounting base and secure it. Extend the two wound ends, which are wrapped with enameled wire and tinned, to the left and right sides respectively. Then, drive the moving mechanism to narrow the gap between the left and right pressure blocks, bending the two wound ends from both sides until they are parallel to the lead-out pins. This greatly improves bending efficiency and ensures consistency.

[0007] Furthermore, one end of the left pressure block and one end of the left force transmission rod are connected via a left movable shaft, and one end of the right pressure block and one end of the right force transmission rod are connected via a right movable shaft. The lower ends of both the left and right movable shafts extend downwards to contact the fixed base or base plate. The fixed base or base plate is provided with two arc grooves for limiting the movement trajectory of the left and right movable shafts, respectively. By setting the left and right movable shafts to cooperate with the arc grooves, the movement trajectory of the left and right movable shafts can be guaranteed, thereby ensuring the movement trajectory of the left and right pressure blocks.

[0008] Furthermore, both the left and right pressure blocks are provided with a straight groove for sliding contact with the winding head, which can prevent the winding head from shifting due to inconsistent force.

[0009] In one embodiment, the guiding mechanism includes a guide post and a guide sleeve, with one end of the guide post fixedly connected to the push plate.

[0010] In one embodiment, one end of the left pressure block is mounted on a left fixed shaft via a bearing, and one end of the right pressure block is mounted on a right fixed shaft via a bearing. This ensures the flexibility of rotation for both the left and right pressure blocks.

[0011] In one embodiment, the mounting base has a slot adapted to the shape of the relay coil holder, thereby allowing for quick positioning of the relay coil holder. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the relay coil frame; Figure 2 This is a three-dimensional structural diagram of the bending device in an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the bending device in another embodiment of the present invention; The attached diagram is labeled as follows: 1. Coil frame; 2. Lead-out foot; 3. Winding head; 4. Base plate; 5. Fixed seat; 6. Guide mechanism; 7. Push plate; 8. Left force transmission rod; 9. Left pressure block; 10. Left fixed shaft; 11. Right force transmission rod; 12. Right pressure block; 13. Right fixed shaft; 14. Left movable shaft; 15. Right movable shaft. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] like Figure 2 , 3As shown, a relay coil lead-out winding head bending device includes a base plate 4 and a fixed seat 5, a moving mechanism, and a guiding mechanism 6 mounted on the base plate 4. The fixed seat 5 has a slot adapted to the shape of the relay coil frame 1, thereby allowing for quick positioning of the relay coil frame 1. The moving mechanism includes a push plate 7, a left force transmission rod 8, a left pressure block 9, a left fixed shaft 10, a right force transmission rod 11, a right pressure block 12, and a right fixed shaft 13. One end of the left pressure block 9 is rotatably mounted on the left fixed shaft 10, and the left pressure block 9 is connected to the left end of the push plate 7 via a left... The force transmission rod 8 is movably connected, and one end of the right pressure block 12 is rotatably mounted on the right fixed shaft 13. The right pressure block 12 is movably connected to the right end of the push plate 7 through the right force transmission rod 11. The lower ends of the left fixed shaft 10 and the right fixed shaft 13 are both fixedly mounted on the fixed seat 5. When the push plate 7 moves toward the fixed seat 5, under the action of the left and right force transmission rods, the left and right pressure blocks will rotate toward each other around the left and right fixed shafts 13 respectively, so that the left and right pressure blocks are narrowed in a pincer shape. The guide mechanism 6 includes a guide post and a guide sleeve, and one end of the guide post is fixedly connected to the push plate 7.

[0015] In use, the relay coil holder 1 is placed on the fixed base 5 for fixation, so that the two winding heads 3, which are wrapped with enameled wire and tinned, extend to the left and right sides respectively. Then, the moving mechanism is driven to work, so that the left and right pressure blocks narrow the gap in a clamp shape, and the two winding heads 3 are bent from the left and right sides until they are parallel to the lead-out pin 2. This can greatly improve the bending efficiency and ensure consistency.

[0016] Furthermore, one end of the left pressure block 9 and one end of the left force transmission rod 8 are connected via a left movable shaft 14, and one end of the right pressure block 12 and one end of the right force transmission rod 11 are connected via a right movable shaft 15. The lower ends of both the left and right movable shafts 14 and 15 extend downwards to contact the fixed base 5. The fixed base 5 is provided with two arc grooves for limiting the movement trajectories of the left and right movable shafts. By setting the left and right movable shafts to cooperate with the arc grooves, the movement trajectories of the left and right movable shafts can be guaranteed, thereby ensuring the movement trajectories of the left and right pressure blocks.

[0017] Furthermore, both the left pressure block 9 and the right pressure block 12 are provided with a straight groove for sliding contact with the winding head 3, which can prevent the winding head 3 from shifting due to inconsistent force.

[0018] In this embodiment, one end of the left pressure block 9 is mounted on the left fixed shaft 10 via a bearing, and one end of the right pressure block 12 is mounted on the right fixed shaft 13 via a bearing. This ensures the flexibility of rotation of the left and right pressure blocks.

[0019] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for bending the winding head of a relay coil lead, characterized in that: It includes a base plate (4) and a fixed seat (5) mounted on the base plate (4), a moving mechanism, and a guiding mechanism (6); the moving mechanism includes a push plate (7), a left force transmission rod (8), a left pressure block (9), a left fixed shaft (10), a right force transmission rod (11), a right pressure block (12), and a right fixed shaft (13). One end of the left pressure block (9) is rotatably mounted on the left fixed shaft (10). The left pressure block (9) is movably connected to the left end of the push plate (7) through the left force transmission rod (8). The right pressure block (9) is rotatably connected to the left end of the push plate (7) through the left force transmission rod (8). One end of the right pressure block (12) is rotatably mounted on the right fixed shaft (13). The right pressure block (12) and the right end of the push plate (7) are movably connected by the right force transmission rod (11). The lower ends of the left fixed shaft (10) and the right fixed shaft (13) are both fixedly mounted on the base plate (4) or the fixed seat (5). When the push plate (7) moves toward the fixed seat (5), under the action of the left and right force transmission rods, the left and right pressure blocks will rotate toward each other around the left and right fixed shafts respectively, so that the left and right pressure blocks are narrowed in a pincer shape.

2. The relay coil lead-out winding head bending device according to claim 1, characterized in that: One end of the left pressure block (9) and one end of the left force transmission rod (8) are connected by the left movable shaft (14), and one end of the right pressure block (12) and one end of the right force transmission rod (11) are connected by the right movable shaft (15). The lower ends of the left movable shaft (14) and the right movable shaft (15) extend downward to contact the fixed seat (5) or the base plate (4). The fixed seat (5) or the base plate (4) is provided with two arc grooves for limiting the movement trajectory of the left and right movable shafts respectively.

3. The relay coil lead-out winding head bending device according to claim 1 or 2, characterized in that: Both the left pressure block (9) and the right pressure block (12) are provided with a straight groove for sliding contact with the winding head (3).

4. The relay coil lead-out winding head bending device according to claim 1 or 2, characterized in that: The guiding mechanism (6) includes a guide post and a guide sleeve, with one end of the guide post fixedly connected to the push plate (7).

5. The relay coil lead-out winding head bending device according to claim 1 or 2, characterized in that: One end of the left pressure block (9) is mounted on the left fixed shaft (10) via a bearing, and one end of the right pressure block (12) is mounted on the right fixed shaft (13) via a bearing.

6. The relay coil lead-out winding head bending device according to claim 1 or 2, characterized in that: The mounting base (5) has a slot that is adapted to the shape of the relay coil holder (1).

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