Positioning and bending device for metal elastic sheet of electronic switch

Abstract

The utility model relates to the technical field of switch metal piece bending, in particular to a positioning and bending device for an electronic switch metal elastic piece, which comprises mounting seats, a supporting block provided with a limiting structure, a conveying belt and a conveying belt on the conveying belt, the outer wall of the conveying belt is fixedly provided with the mounting seats at equal intervals, and the right end faces of the mounting seats are provided with shaping devices. According to the positioning and bending device, the metal elastic piece can be positioned and bent, meanwhile, the bent metal elastic piece can be kept to be adsorbed and shaped, the bending effect is better, the mounting base can be limited through the clamping plate, the clamping plate is not prone to deformation, and the positioning and bending device is convenient to use and high in practicability. And the bending device is prevented from shaking left and right on the flexible conveying belt, the bending stability is effectively kept, and the bending effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of bending technology for metal parts of switches, and in particular to a positioning and bending device for a metal spring sheet of an electronic switch. Background Technology

[0002] The switch spring is a crucial component of a switch, primarily providing the spring force for the switch. Existing switch metal springs are shaped during bending, but this sizing prevents the bending of the next spring, reducing bending efficiency. An existing application (CN202110386414.2) describes a positioning and bending device for electronic switch metal springs, including a first and second rotating shaft with parallel axes rotatably mounted on a base plate… The bending unit can bend the metal spring to be bent, and the sizing component ensures consistent production of the metal springs. However, this device's mounting base is installed on a flexible conveyor belt, which cannot limit the mounting base to prevent lateral swaying when the bending head presses down, causing the support block and the metal spring on it to shift, resulting in unstable bending. Utility Model Content

[0003] The purpose of this invention is to solve the problem that the existing technology cannot limit the mounting seat installed on a flexible conveyor belt during bending, resulting in unstable bending. Therefore, a positioning and bending device for an electronic switch metal spring is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a positioning and bending device for an electronic switch metal spring, including a mounting base, a support block with a limiting structure, a conveyor belt and a conveyor belt on it. The outer wall of the conveyor belt is equidistantly fixed with mounting bases for a shaping device mounted on the right end face. The right end face of the mounting base is slidably provided with three crossbars through a guide and reset assembly. The outer walls of the middle one and the two side crossbars are respectively rotatably connected to the inner and outer ends of the two support blocks. A hydraulic cylinder is fixed above the conveyor belt through a gantry frame. A horizontal plate is fixed at the lower end of the gantry frame and the hydraulic cylinder. The bottom of the horizontal plate is fixed with a pressing structure bending head and two pairs of clamping plates located at both ends, which are respectively clamped at the front and rear ends of the mounting base. The lower end of one pair of clamping plates is integrally formed with guide plates that bend toward the left and right sides of the mounting base respectively.

[0006] Preferably, a collection box is provided below the right end of the conveyor belt.

[0007] Preferably, the limiting structure includes a pair of baffles, and the tops of the two support blocks are respectively equipped with baffles for blocking the front and rear ends of the metal spring sheet, and the upper ends of the pair of baffles are chamfered on the side closest to each other.

[0008] Preferably, the shaping device includes suction cups and suction cup holes. Two suction cups are fixed to the right end face of the mounting base by an inclined plate. The lower ends of the two suction cups are provided with air inlets that are bent horizontally to the front and rear sides, and the outer ends of the air inlets are provided with air injection opening devices. The top of each pair of support blocks is provided with suction cup holes that cooperate with the two suction cups respectively.

[0009] Preferably, the air injection opening device includes an air injection pipe, a spring, and a piston rod. The air inlet of the suction cup is connected to the air injection pipe, and a piston rod with its outer end extending through and outside the air injection pipe is slidably disposed inside the air injection pipe. A spring located inside the air injection pipe is fixed to the inner end of the piston rod, and the inner end of the spring is fixedly connected to the inner wall of the air injection pipe. A C-shaped plate for squeezing the inner piston rod is provided below the right end of the conveyor belt.

[0010] Preferably, the clamping structure includes a fixed rod, a pressure rod, a convex button, and a spring. The horizontal plate at the bottom of the lower end of the hydraulic cylinder has two symmetrically arranged insertion holes on the front and rear sides of the bending head, and a fixed rod is fixedly installed in the insertion holes. The bottom of the fixed rod has an insertion hole with a limit groove on the hole wall, and a pressure rod is inserted into the insertion hole. The sides and top of the pressure rod are respectively fixed with a convex button and a spring located in the limit groove. The upper end of the spring abuts against the upper wall of the insertion hole.

[0011] Preferably, the guide reset assembly includes a slide groove, a slider, and a guide rod. The side of the mounting base has a slide groove located in the middle and two symmetrically arranged on both sides with their upper ends aligned. A guide rod is fixedly installed in the slide groove. A slider that is slidably connected to the slide groove wall is sleeved on the outer wall of the guide rod. The front ends of the three sliders are respectively fixedly connected to three crossbars. A spring is sleeved on the outer wall of the guide rod in the middle slide groove, and the upper and lower ends of the spring abut against the slider and the slide groove wall, respectively.

[0012] The present invention provides a positioning and bending device for an electronic switch metal spring, which has the following advantages: the positioning and bending device can not only position and bend the metal spring, but also keep the bent metal spring in an adsorption and shaping state, resulting in a better bending effect. In addition, the device can limit the mounting base through the clamping plate to prevent it from swaying left and right on the flexible conveyor belt, effectively maintaining the bending stability and further improving the bending effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the positioning and bending device for an electronic switch metal spring sheet proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the guide assembly structure of a positioning and bending device for an electronic switch metal spring sheet proposed in this utility model;

[0015] Figure 3This is a schematic diagram of the back structure of the guide and reset assembly of the positioning and bending device for an electronic switch metal spring sheet proposed in this utility model.

[0016] Figure 4 This is a side view of a positioning and bending device for an electronic switch metal spring sheet proposed in this utility model;

[0017] Figure 5 This is a schematic diagram of the clamping structure of a positioning and bending device for an electronic switch metal spring sheet proposed in this utility model.

[0018] In the diagram: 1. Conveyor belt; 2. Conveyor belt; 3. Gantry frame; 4. Hydraulic cylinder; 5. Fixed rod; 6. Bending head; 7. Clamping plate; 10. Mounting base; 11. Slot; 12. Suction cup; 13. C-shaped plate; 14. Collection box; 15. Guide plate; 16. Pressure rod; 17. Baffle; 18. Protruding button; 19. Spring; 20. Support block; 21. Crossbar; 22. Slide groove; 23. Slider; 24. Guide rod; 25. Spring; 26. Piston rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5 A positioning and bending device for an electronic switch metal spring includes a mounting base 10, a support block 20 with a limiting structure, a conveyor belt 1 and a conveyor belt 2 on it. The outer wall of the conveyor belt 2 is equidistantly fixed with a mounting base 10 on the right end face of which a shaping device is mounted. The right end face of the mounting base 10 is slidably provided with three crossbars 21 through a guide reset assembly. The outer walls of the middle one and the two side crossbars 21 are respectively rotatably connected to the inner and outer ends of the two support blocks 20. A hydraulic cylinder 4 is fixed above the conveyor belt 2 through a gantry frame 3. A horizontal plate is fixed at the lower end of the gantry frame 3 and the hydraulic cylinder 4. A pressing structure bending head 6 and two pairs of clamping plates 7 located at both ends are fixed at the bottom of the horizontal plate and are respectively clamped at the front and rear ends of the mounting base 10. The lower end of one pair of clamping plates 7 is integrally formed with guide plates 15 that are bent toward the left and right sides of the mounting base 10 respectively.

[0021] Reference Figure 1-5 In order to facilitate the collection of metal fragments, a collection box 14 is provided at the lower right end of the conveyor belt 2.

[0022] Reference Figure 1-5In order to facilitate the accurate placement of the metal spring on the support block 20 and prevent it from sliding back and forth, the limiting structure includes a pair of baffles 17. The tops of the two support blocks 20 are respectively equipped with baffles 17 to block the front and rear ends of the metal spring. The upper ends of the pair of baffles 17 are chamfered on the side closest to each other.

[0023] Reference Figure 1-5 In order to adsorb the metal spring after bending and keep it in the bent state, stabilize the bending effect and prevent it from falling off, the shaping device includes suction cups 12 and suction cup holes. Two suction cups 12 are fixed on the right end face of the mounting base 10 by an inclined plate. The lower end of the two suction cups 12 is provided with air inlets that are bent horizontally to the front and back sides, and the outer end of the air inlets is provided with an air injection opening device. The top of a pair of support blocks 20 is provided with suction cup holes that cooperate with the two suction cups 12 respectively.

[0024] Reference Figure 1-5 In order to allow the piston rod 26 to be pushed inward by the C-shaped plate 13 when the mounting base 10 is rotated downward, and to inject air into the suction cup 12 from the air injection tube, so that it loses its adsorption and fixation on the metal spring and automatically falls into the collection box 14, the air injection opening device includes an air injection tube, a spring 25, and a piston rod 26. The air inlet of the suction cup 12 is connected to the air injection tube, and the piston rod 26 with its outer end extending through and outside the air injection tube is slidably arranged inside the air injection tube. The inner end of the piston rod 26 is fixed to the spring 25 located inside the air injection tube, and the inner end of the spring 25 is fixedly connected to the inner wall of the air injection tube. The C-shaped plate 13 is provided below the right end of the conveyor belt 2 for squeezing the inner piston rod 26.

[0025] Reference Figure 1-5 In order to press the metal spring sheet onto the support block 20 during bending and maintain bending stability, the clamping structure includes a fixed rod 5, a pressure rod 16, a protruding button 18, and a spring 19. The horizontal plate at the bottom of the lower end of the hydraulic cylinder 4 has two symmetrically arranged insertion holes on the front and rear sides of the bending head 6, and the fixed rod 5 is fixed in the insertion hole. The bottom of the fixed rod 5 has an insertion hole with a limit groove on the hole wall, and the pressure rod 16 is inserted into the insertion hole. The protruding button 18 and the spring 19 located in the limit groove are fixed on the sides and top of the pressure rod 16, respectively. The upper end of the spring 19 abuts against the upper wall of the insertion hole.

[0026] Reference Figure 1-5In order to enable the inner ends of the two support blocks 20 to bend downwards and automatically return to their original position after bending, the guide reset assembly includes a slide groove 22, a slider 23, and a guide rod 24. The side of the mounting base 10 has a slide groove 22 located in the middle and two symmetrically arranged on both sides with their upper ends aligned. The guide rod 24 is fixedly installed in the slide groove 22. The slider 23, which is slidably connected to the wall of the slide groove 22, is sleeved on the outer wall of the guide rod 24. The front ends of the three sliders 23 are respectively fixedly connected to three crossbars 21. A spring is sleeved on the outer wall of the guide rod 24 in the middle slide groove 22, and the upper and lower ends of the spring abut against the slider 23 and the wall of the slide groove 22, respectively.

[0027] Working principle: The metal spring is placed between two baffles 17 on the support block 20 by the upper unit, and the mounting seat 10 is moved to the bending head 6 by the conveyor belt 2. The bending head 6, clamping plate 7, mounting plate 8, cylinder 9, fixing rod 5, and pressure rod 16 are lowered by the hydraulic cylinder 4, so that the clamping plate 7 clamps the two sides of the mounting seat 10 to prevent it from swaying left and right. The pressure rod 16 presses down on the metal spring to prevent it from sliding. The bending head 6 presses down in conjunction with the support block 20 to bend the metal spring and press it onto the suction cup 12, where it is attracted and fixed. After processing, the hydraulic cylinder 4 moves the bending head 6 and the others upward. The mounting seat 10 is moved to the right and rotated downward by the conveyor belt 2. The C-shaped plate 13 presses the two piston rods 26 inward to make them retract and squeeze air into the suction cup 12, so that the suction cup loses the negative pressure that attracts the metal spring. The metal spring automatically falls into the collection box 14.

[0028] This positioning and bending device can not only position and bend the metal spring sheet, but also keep the bent metal spring sheet in an adsorption and shape-fixed state, resulting in a better bending effect. In addition, it can limit the mounting base 10 through the clamping plate 7 to prevent it from swaying left and right on the flexible conveyor belt 2, effectively maintaining the bending stability and further improving the bending effect.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning and bending device for electronic switch metal spring, comprising a mounting seat (10), a support block (20) provided with a limiting structure, a conveying belt (1) and a conveying belt (2) thereon, characterized in that, The outer wall of the conveying belt (2) is equidistantly fixed with the mounting seat (10) of the right end face mounting shaping device, and the right end face of the mounting seat (10) is slidably provided with three horizontal rods (21) through the guide reset assembly, the outer walls of the middle one and the two on both sides of the horizontal rods (21) are respectively rotatably connected with the inner side end and the outer side end of the two support blocks (20), the upper part of the conveying belt (2) is fixed with a hydraulic cylinder (4) through a gantry (3), the lower end of the gantry (3) and the hydraulic cylinder (4) is fixed with a horizontal plate, and the bottom of the horizontal plate is fixed with a bending head (6) of a pressing structure and two pairs of clamping plates (7) located at both ends and clamped on the front and rear ends of the mounting seat (10), and the lower end of one pair of the clamping plates (7) is integrally formed with guide plates (15) bent to the left and right sides of the mounting seat (10).

2. The positioning and bending device for the electronic switch metal elastic sheet according to claim 1, characterized in that, The lower right end of the conveying belt (2) is provided with a collecting box (14).

3. The positioning and bending device for the electronic switch metal elastic sheet according to claim 1, characterized in that, The limiting structure includes a pair of baffle plates (17), and the top of each of the two support blocks (20) is provided with a baffle plate (17) for blocking the front and rear ends of the metal spring piece, and the upper end of each of the two baffle plates (17) is provided with a chamfer on the side close to each other.

4. The positioning and bending device for the electronic switch metal elastic sheet according to claim 1, characterized in that, The shaping device includes a suction cup (12) and a suction cup hole, and the right end of the mounting seat (10) is fixed with two suction cups (12) through an inclined plate, the lower end of each of the two suction cups (12) is provided with an air inlet bent horizontally to the front and rear sides, the outer end of the air inlet is provided with a gas injection opening device, and the top of each of the two support blocks (20) is provided with a suction cup hole matched with the two suction cups (12).

5. The apparatus according to claim 4, wherein the bending device is characterized by: The gas injection opening device includes a gas injection pipe, a spring (25) and a piston rod (26), the air inlet of the suction cup (12) is connected with a gas injection pipe, the piston rod (26) is slidably arranged in the gas injection pipe and extends out of the gas injection pipe, the inner end of the piston rod (26) is fixed with a spring (25) located in the gas injection pipe, the inner end of the spring (25) is fixedly connected with the inner wall of the gas injection pipe, and the lower right end of the conveying belt (2) is provided with a C-shaped plate (13) for extruding the piston rod (26) from the inside.

6. The positioning and bending device for the electronic switch metal spring according to claim 1, characterized in that, The pressing structure includes a fixing rod (5), a pressing rod (16), a knob (18) and a spring (19), the horizontal plate at the lower end of the hydraulic cylinder (4) is provided with two insertion holes symmetrically arranged on the front and rear sides of the bending head (6), the insertion holes are fixedly provided with a fixing rod (5), the bottom of the fixing rod (5) is provided with an insertion hole with a limiting sliding groove on the hole wall, the insertion hole is inserted with a pressing rod (16), the two sides and the top of the pressing rod (16) are respectively fixedly provided with a knob (18) and a spring (19) located in the limiting sliding groove, and the upper end of the spring (19) abuts against the upper wall of the insertion hole.

7. The positioning and bending device for the electronic switch metal spring according to claim 1, characterized in that, The guiding reset assembly comprises a sliding groove (22), a sliding block (23) and a guide rod (24), the side of the mounting base (10) is provided with an upper end aligned sliding groove (22) located in the middle and two symmetrically arranged sliding grooves (22) located on both sides, and the guide rod (24) is fixedly arranged in the sliding groove (22), the outer wall of the guide rod (24) is sleeved with the sliding block (23) which is slidingly connected with the groove wall of the sliding groove (22), and the front ends of the three sliding blocks (23) are fixedly connected with the three cross rods (21) respectively, the outer wall of the guide rod (24) in the middle sliding groove (22) is sleeved with a spring, and the upper and lower ends of the spring abut against the sliding block (23) and the groove wall of the sliding groove (22) respectively.

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