Switch elastic sheet bending mechanism

Abstract

The utility model discloses a switch shrapnel bending mechanism, which belongs to the technical field of switch manufacturing, and comprises a small bending machine, the small bending machine comprises a fixed table, an electric push rod, a lifting plate, an extrusion block and two fixed wheels, the electric push rod is fixedly arranged on the top of the fixed table, the output end of the electric push rod is fixedly connected with the top wall of the lifting plate, and the extrusion block is arranged on the fixed table. The extrusion block is fixedly installed on the side wall of the lifting plate, a moving hole is formed in the side wall of the fixing table, the extrusion block is located in the moving hole, the two fixing wheels are fixedly installed on the two sides of the moving hole respectively, and the two limiting plates are located on the two sides of the moving hole respectively. A pushing assembly used for driving the moving plate is fixedly installed on the side wall of the lifting plate. The push plate and the matched push assembly are arranged on the side wall of the fixing table, so that the small bending machine can automatically discharge the elastic pieces after bending the elastic pieces, workers are prevented from manually taking out the elastic pieces, and then the bending efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch manufacturing, and in particular relates to a switch spring sheet bending mechanism. Background Art

[0002] Metal shrapnel (referred to as shrapnel), usually made of stainless steel, is an important component of the switch. Shrapnel has various shapes, the most common of which is "V" shape. The "V"-shaped shrapnel mainly uses the stable rebound force and ultra-long life of the shrapnel to provide the operator with high-quality tactile feedback. The original shrapnel is a straight piece and needs to be bent before it can be formed;

[0003] Before the small bending machine bends the shrapnel, the staff needs to accurately place the shrapnel in the appropriate position on the small bending machine. After bending it, the staff also needs to manually remove the shrapnel from the bending machine. Before and after the bending of the shrapnel, the staff needs to participate more in the bending process, resulting in the overall bending efficiency is not high enough.

[0004] To this end, we propose a switch spring bending mechanism to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art and proposes a switch spring bending mechanism.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A switch spring bending mechanism comprises a small bending machine, which comprises a fixed platform, an electric push rod, a lifting plate, an extrusion block and two fixed wheels, the electric push rod is fixedly mounted on the top of the fixed platform, the output end of the electric push rod is fixedly connected to the top wall of the lifting plate, the extrusion block is fixedly mounted on the side wall of the lifting plate, the side wall of the fixed platform is provided with a movement hole, the extrusion block is located in the movement hole, the two fixed wheels are respectively fixedly mounted on both sides of the movement hole, the side wall of the fixed platform facing the fixed wheel is fixedly provided with two limit plates, the two limit plates are respectively located on both sides of the movement hole, the distance between each limit plate and the corresponding fixed wheel is consistent, a push plate is installed in the movement hole, the side wall of the push plate is fixedly connected with the movement plate, and the side wall of the lifting plate is fixedly provided with a pushing component for driving the movement plate.

[0008] Preferably, a bottom plate is fixedly mounted on the side wall of the fixed platform facing away from the fixed wheel, and a vertical plate is fixedly mounted on one end of the bottom plate away from the fixed platform.

[0009] Preferably, the pushing assembly includes a straight rod, a threaded block, a threaded rod, a rotating gear, a moving rack, two displacement blocks, two oblique rods and two center rods, the two center rods are respectively fixedly connected to the side wall of the lifting plate on the side facing away from the extrusion block, the two oblique rods are respectively rotatably connected to the two center rods away from one end of the lifting plate, the top wall of the bottom plate is provided with two sliding grooves, the two displacement blocks are respectively slidably connected to the inner walls of the two sliding grooves, and the two oblique rods are respectively rotatably connected to the top walls of the two displacement blocks at one end away from the center rod, the moving rack is fixedly connected to one of the side walls of the displacement blocks, the rotating gear is rotatably connected to the side wall of the fixed platform, one end of the threaded rod is fixedly connected to the side wall of the rotating gear away from the fixed platform, the other end is rotatably connected to the side wall of the vertical plate, the rotating gear is meshed with the moving rack, the threaded block is threadedly connected to the threaded rod, the straight rod is fixedly connected to the side wall of the threaded block, and one end of the straight rod is fixedly connected to the bottom wall of the moving plate.

[0010] Preferably, a telescopic spring is fixedly connected to the side wall of the slide groove, and the other end of the telescopic spring is fixedly connected to the side wall of the displacement block.

[0011] Preferably, a straight groove is provided on the top wall of the bottom plate, and the side wall of one end of the straight rod away from the moving plate is slidably connected to the inner wall of the straight groove.

[0012] In summary, the technical effects and advantages of the utility model are as follows:

[0013] By arranging a limit plate, a push plate, a moving plate, a straight rod, a threaded block, a threaded rod, a rotating gear, a moving rack, a displacement block, a diagonal rod and a center rod in a small bending machine, the problem in the prior art that the shrapnel needs to be manually removed by the staff after being bent is solved, and the limit plates on both sides of the fixed wheel can also help the staff to quickly locate the position of the shrapnel, thereby further improving the efficiency of bending the shrapnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the back of the fixed platform in the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of the pushing component in the utility model.

[0017] In the figure: 1. fixed platform; 2. electric push rod; 3. lifting plate; 4. extrusion block; 5. fixed wheel; 6. moving hole; 7. limit plate; 8. push plate; 9. moving plate; 10. bottom plate; 11. vertical plate; 12. straight rod; 13. threaded block; 14. threaded rod; 15. rotating gear; 16. moving rack; 17. displacement block; 18. inclined rod; 19. center rod; 20. slide groove; 21. telescopic spring; 22. straight groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] like Figure 1 As shown, a switch spring bending mechanism includes a small bending machine, which includes a fixed platform 1, an electric push rod 2, a lifting plate 3, an extrusion block 4 and two fixed wheels 5. The electric push rod 2 is fixedly installed on the top of the fixed platform 1, and the output end of the electric push rod 2 is fixedly connected to the top wall of the lifting plate 3. The extrusion block 4 is fixedly installed on the side wall of the lifting plate 3. The side wall of the fixed platform 1 is provided with a movement hole 6, and the bottom of the movement hole 6 is designed in an arc shape. The extrusion block 4 is located in the movement hole 6, and the lower end of the extrusion block 4 is "V" shaped, and the bottom is rounded, so that the bent spring is more in line with the requirements of long-term use. A storage box specially used for storing springs can also be set in front of the fixed platform 1 to facilitate the reception of the bent springs. The two fixed wheels 5 are fixedly installed on both sides of the movement hole 6.

[0020] Two limit plates 7 are fixedly installed on the side wall of the fixed platform 1 facing the fixed wheel 5. The two limit plates 7 are respectively located on both sides of the movement hole 6. The distance between each limit plate 7 and the corresponding fixed wheel 5 is consistent. The upper end height of the limit plate 7 is greater than the upper end height of the fixed wheel 5, which makes it more convenient for the staff to put the spring piece on the fixed wheel 5 along the limit plate 7. A push plate 8 is installed in the movement hole 6. It can be seen from the drawings in the specification that the push plate 8 is an arc-shaped design because the spring piece is arc-shaped after being bent. The side wall of the push plate 8 is fixedly connected with a movement plate 9. A bottom plate 10 is fixedly installed on the side wall of the fixed platform 1 facing away from the fixed wheel 5. A vertical plate 11 is fixedly installed on the end of the bottom plate 10 away from the fixed platform 1.

[0021] Reference Figure 2 and Figure 3 The side wall of the lifting plate 3 is fixedly provided with a driving assembly for driving the moving plate 9, and the driving assembly includes a straight rod 12, a threaded block 13, a threaded rod 14, a rotating gear 15, a moving rack 16, two displacement blocks 17, two inclined rods 18 and two center rods 19. The two center rods 19 are respectively fixedly connected to the side wall of the lifting plate 3 on the side facing away from the extrusion block 4, and the two inclined rods 18 are respectively rotatably connected to the ends of the two center rods 19 away from the lifting plate 3. The inclined rods 18 do not contact the fixed platform 1, which can avoid the generation of friction. Two slide grooves 20 are provided on the top wall of the bottom plate 10, and the two displacement blocks 17 are respectively slidably connected to the inner walls of the two slide grooves 20. The side wall of the slide groove 20 is fixedly connected with a telescopic spring 21, and the other end of the telescopic spring 21 is fixedly connected to the side wall of the displacement block 17. The force applied by the telescopic spring 21 to the displacement block 17 will make the displacement block 17 have a tendency to move toward the middle position.

[0022] The ends of the two oblique rods 18 away from the center rod 19 are respectively connected to the top walls of the two displacement blocks 17 for rotation, and the moving rack 16 is fixedly connected to the side wall of one of the displacement blocks 17. The rotating gear 15 is connected to the side wall of the fixed platform 1 for rotation, and one end of the threaded rod 14 is fixedly connected to the side wall of the rotating gear 15 away from the fixed platform 1, and the other end is connected to the side wall of the vertical plate 11 for rotation. The rotating gear 15 is meshed with the moving rack 16, the threaded block 13 is threadedly connected to the threaded rod 14, and the straight rod 12 is fixedly connected to the side wall of the threaded block 13. The straight rod 12 can be approximately regarded as passing through the threaded block 13, but it does not affect the movement of the threaded block 13 along the direction of the threaded rod 14. One end of the straight rod 12 is fixedly connected to the bottom wall of the moving plate 9, and a straight groove 22 is provided on the top wall of the bottom plate 10. The side wall of the end of the straight rod 12 away from the moving plate 9 is slidably connected to the inner wall of the straight groove 22. The cooperation between the straight rod 12 and the straight groove 22 makes the threaded block 13 not rotate with the rotation of the threaded rod 14, but move along the direction of the threaded rod 14.

[0023] The working principle is as follows: first, the two ends of the spring sheet are placed horizontally on the two fixed wheels 5 with the two ends of the spring sheet pressed against the side walls of the two limit plates 7, and then the electric push rod 2 is started. When the electric push rod 2 drives the lifting plate 3 and the extrusion block 4 to move downward, the two inclined rods 18 will drive the displacement block 17 to move away from the center position, thereby causing the moving rack 16 to leave the position of the rotating gear 15;

[0024] After the extrusion block 4 successfully bends the spring piece, the electric push rod 2 will drive the lifting plate 3 to move upward, and the two inclined rods 18 will drive the two displacement blocks 17 to move toward the middle position. The moving rack 16 installed on the side wall of the displacement block 17 will contact the rotating gear 15 again and drive the rotating gear 15 to rotate. The threaded rod 14 installed on the side wall of the rotating gear 15 will rotate with the rotation of the rotating gear 15, and then the threaded block 13 will drive the straight rod 12 and the moving plate 9 to move toward the fixed wheel 5. The push plate 8 installed on the side wall of the moving plate 9 will push out the bent spring piece on the fixed wheel 5.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A switch spring bending mechanism, comprising a small bending machine, the small bending machine comprising a fixed platform (1), an electric push rod (2), a lifting plate (3), an extrusion block (4) and two fixed wheels (5), the electric push rod (2) is fixedly mounted on the top of the fixed platform (1), the output end of the electric push rod (2) is fixedly connected to the top wall of the lifting plate (3), the extrusion block (4) is fixedly mounted on the side wall of the lifting plate (3), the side wall of the fixed platform (1) is provided with a movement hole (6), the extrusion block (4) is located in the movement hole (6), and the two fixed wheels (5) are respectively fixedly mounted on both sides of the movement hole (6), characterized in that: Two limit plates (7) are fixedly mounted on the side wall of the fixed platform (1) facing the fixed wheel (5), and the two limit plates (7) are respectively located on both sides of the moving hole (6), and the distance between each limit plate (7) and the corresponding fixed wheel (5) is consistent. A push plate (8) is mounted in the moving hole (6), and a moving plate (9) is fixedly connected to the side wall of the push plate (8), and a pushing component for driving the moving plate (9) is fixedly mounted on the side wall of the lifting plate (3).

2. A switch spring bending mechanism according to claim 1, characterized in that: A bottom plate (10) is fixedly mounted on the side wall of the fixed platform (1) facing away from the fixed wheel (5), and a vertical plate (11) is fixedly mounted on one end of the bottom plate (10) away from the fixed platform (1).

3. A switch spring bending mechanism according to claim 2, characterized in that: The pushing assembly comprises a straight rod (12), a threaded block (13), a threaded rod (14), a rotating gear (15), a moving rack (16), two displacement blocks (17), two inclined rods (18) and two center rods (19). The two center rods (19) are respectively fixedly connected to the side wall of the lifting plate (3) facing away from the extrusion block (4). The two inclined rods (18) are respectively rotatably connected to the ends of the two center rods (19) away from the lifting plate (3). The top wall of the bottom plate (10) is provided with two sliding grooves (20). The two displacement blocks (17) are respectively slidably connected to the inner walls of the two sliding grooves (20). The two inclined rods (18) are away from the center rods (19). ) one end is rotatably connected to the top walls of the two displacement blocks (17), the moving rack (16) is fixedly connected to the side wall of one of the displacement blocks (17), the rotating gear (15) is rotatably connected to the side wall of the fixed platform (1), one end of the threaded rod (14) is fixedly connected to the side wall of the rotating gear (15) away from the fixed platform (1), and the other end is rotatably connected to the side wall of the vertical plate (11), the rotating gear (15) is meshed with the moving rack (16), the threaded block (13) is threadedly connected to the threaded rod (14), the straight rod (12) is fixedly connected to the side wall of the threaded block (13), and one end of the straight rod (12) is fixedly connected to the bottom wall of the moving plate (9).

4. A switch spring bending mechanism according to claim 3, characterized in that: A telescopic spring (21) is fixedly connected to the side wall of the slide groove (20), and the other end of the telescopic spring (21) is fixedly connected to the side wall of the displacement block (17).

5. A switch spring bending mechanism according to claim 3, characterized in that: A straight groove (22) is provided on the top wall of the bottom plate (10), and a side wall of one end of the straight rod (12) away from the moving plate (9) is slidably connected to the inner wall of the straight groove (22).

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