Necking device for electromagnetic valve inserting needle tube

Abstract

The utility model discloses an electromagnetic valve pin tube necking device, and relates to the technical field of automatic equipment. Comprising a necking device body, the necking device body comprises a stand column and a mounting plate, a lifting air cylinder used for driving the mounting plate is arranged on one side of the stand column, and a necking main shaft and a necking spring chuck arranged in the necking main shaft in a sleeved mode are arranged in one end of the mounting plate; and a necking cylinder for driving the necking main shaft is arranged at the bottom of the other end of the mounting plate. The design that the conical chucks are matched with the receding grooves is adopted, the conical chucks are evenly extruded through the conical surfaces when the necking main shaft descends, it is ensured that the diameters of necking ports of the electromagnetic valve inserting needle tube are consistent, deformation or eccentricity is avoided, and the product limiting block limits and prevents machining deviation when conducting necking machining on the electromagnetic valve inserting needle tube. The necking collet chuck and the necking main shaft structure can be matched with needle inserting tubes of different specifications, diversified necking requirements can be met by replacing the necking collet chuck, and wide application prospects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automated equipment technology, specifically to a device for reducing the nozzle of a solenoid valve needle tube. Background Technology

[0002] The solenoid valve pin tube is a core component in solenoid valves used for electrical connection and control. It typically consists of a pin, terminals, and a housing. The pin connects to an external circuit to control the opening and closing of the solenoid valve. Its core functions include: electrical signal transmission: the pin acts as a conductive medium, transmitting the controller signal to the solenoid valve coil to drive the valve core; fluid flow control: the pin-type connection triggers the internal opening and closing of the solenoid valve, regulating the flow state of fluids (such as gas and liquid). During manufacturing, the solenoid valve pin tube needs to be necked. Narrowing refers to reducing the diameter of the tube or component's end through mechanical processing (such as stamping or die extrusion) to adapt to other parts or improve connection stability. However, existing necking methods for solenoid valve pin tubes have the following shortcomings: Utility Model Content

[0003] This invention provides a device for reducing the nozzle of a solenoid valve needle tube to solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a solenoid valve needle tube reducing device, comprising a reducing device body, the reducing device body comprising a column and a mounting plate, a lifting cylinder for driving the mounting plate being provided on one side of the column, a reducing spindle and a reducing spring collet sleeved inside the reducing spindle being provided inside one end of the mounting plate, and a reducing cylinder for driving the reducing spindle being provided at the bottom of the other end of the mounting plate.

[0005] Furthermore, the bottom of the constricted spring collet is provided with several conical collets, and a clearance groove is provided between two adjacent conical collets.

[0006] Furthermore, a bushing is provided inside one end of the mounting plate, and a fixing block is fixedly provided inside the bushing.

[0007] Furthermore, the bushing is fitted onto the constricted spring collet, and the constricted spring collet has a through hole inside that engages with the fixing block.

[0008] Furthermore, the constricted spindle has an internal movable hole and a drive hole located above the movable hole. The width of the movable hole is greater than that of the through hole, and the movable hole is movably sleeved with the fixed block.

[0009] Furthermore, the output end of the reduced-diameter cylinder is provided with a connecting seat, and a compensation seat is hinged to the top of the connecting seat.

[0010] Furthermore, it also includes a lever, one end of which is provided with a compensation hole that is movably fitted to the top of the compensation seat, and the other end is provided with a cam head that is movably fitted to the inside of the drive hole.

[0011] Furthermore, the mounting plate is located above the column, and the output end of the lifting cylinder is connected to a sliding plate via a floating joint.

[0012] Furthermore, the slide plate is slidably connected to one side of the column via a slide rail, and the top of the slide plate is fixedly connected to the bottom of the mounting plate.

[0013] Furthermore, it also includes a product limiting block, which is located on one side of the column and is used to limit the insertion of the needle tube to be narrowed. The top of the mounting plate is also provided with a force-bearing seat located on one side of the bushing, and the inside of the force-bearing seat is provided with a fixed shaft that is movably connected to the inside of the lever.

[0014] Compared with the prior art, this utility model provides a solenoid valve needle tube reduction device, which has the following beneficial effects:

[0015] This solenoid valve needle tube reduction device employs multiple conical chucks with a clearance groove design. When the reduction spindle descends, the conical surfaces uniformly compress the conical chucks, ensuring consistent diameter at the reduction port of the solenoid valve needle tube and preventing deformation or eccentricity. The product limit block limits the reduction of the solenoid valve needle tube during processing to prevent machining deviation. The reduction spring chuck and reduction spindle structure can be adapted to different specifications of needle tubes. By changing the reduction spring chuck, diverse reduction requirements can be met, demonstrating broad application prospects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the product limiting block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the lever structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the constricted spring collet structure of this utility model;

[0021] Figure 6 This is a cross-sectional view of the constricted spring clip structure of this utility model.

[0022] In the diagram: 1. Main body of the necking device; 11. Column; 12. Mounting plate; 121. Force-bearing seat; 13. Lifting cylinder; 131. Slide plate; 14. Necking cylinder; 141. Connecting seat; 142. Compensation seat; 15. Lever; 151. Compensation hole; 152. Cam head; 16. Bushing; 161. Fixing block; 17. Necking spindle; 171. Movable hole; 172. Drive hole; 18. Necking spring collet; 181. Conical collet; 182. Clearance groove; 19. Product limit block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model discloses a solenoid valve needle tube reduction device, including a reduction device body 1. The reduction device body 1 includes a column 11 and a mounting plate 12. A lifting cylinder 13 for driving the mounting plate 12 is provided on one side of the column 11. A reduction spindle 17 and a reduction spring collet 18 sleeved inside the reduction spindle 17 are provided inside one end of the mounting plate 12. A reduction cylinder 14 for driving the reduction spindle 17 is provided at the bottom of the other end of the mounting plate 12.

[0025] Specifically, the bottom of the reduced-diameter spring collet 18 is provided with a plurality of tapered collets 181, and a clearance groove 182 is provided between two adjacent tapered collets 181. A bushing 16 is provided inside one end of the mounting plate 12, and a fixing block 161 is fixedly provided inside the bushing 16. The bushing 16 is sleeved on the reduced-diameter spring collet 18. The reduced-diameter spring collet 18 is provided with a through hole that engages with the fixing block 161. The reduced-diameter spindle 17 is provided with a movable hole 171 and a drive hole 172 located above the movable hole 171. The width of the movable hole 171 is larger than that of the through hole, and the movable hole 171 is movably engaged with the fixing block 161.

[0026] In this embodiment, the fixing block 161 passes through the interior of the bushing 16, and both ends of the fixing block 161 are fixed to the top of the mounting plate 12 by screws, which facilitates disassembly and replacement of the reduced-diameter spring collet 18. When the reduced-diameter spindle 17 descends, the reduced-diameter spring collet 18 is limited by the fixing block 161 and cannot descend. The width of the movable hole 171 is greater than that of the through hole, so that the reduced-diameter spindle 17 can still move up and down after being sleeved with the fixing block 161. The bottom shape of the reduced-diameter spindle 17 matches the shape of the reduced-diameter spring collet 18. When the reduced-diameter spindle 17 descends and abuts against multiple tapered collets 181, the multiple tapered collets 181 move relative to each other through the relief groove 182, so that the multiple tapered collets 181 fit together, and at the same time complete the reduction processing of the needle tube.

[0027] Specifically, the output end of the reduced-throat cylinder 14 is provided with a connecting seat 141, the top of the connecting seat 141 is hinged with a compensation seat 142, and also includes a lever 15. One end of the lever 15 is provided with a compensation hole 151 that is movably sleeved with the top of the compensation seat 142, and the other end is provided with a cam head 152 that is movably sleeved with the inside of the drive hole 172.

[0028] In this embodiment, when the solenoid valve needle tube to be processed moves directly below the constriction spring chuck 18, the lifting cylinder 13 is activated to drive the mounting plate 12 to descend, so that the space between the multiple conical chucks 181 covers the top of the needle tube. The constriction cylinder 14 is activated to drive the connecting seat 141 to rise. The connecting seat 141 lifts one end of the lever 15 through the compensation seat 142. The cam head 152 at the other end of the lever 15 lowers the compression spindle 17 through the drive hole 172, thereby lowering the constriction spindle 17. When the constriction spindle 17 descends and abuts against the multiple conical chucks 181, the multiple conical chucks 181 are abutted against by the conical surface of the constriction spindle 17 and move relative to each other, thus completing the constriction processing of the needle tube.

[0029] Specifically, the mounting plate 12 is located above the column 11, and the output end of the lifting cylinder 13 is connected to a sliding plate 131 through a floating joint. The sliding plate 131 is slidably connected to one side of the column 11 through a slide rail, and the top of the sliding plate 131 is fixedly connected to the bottom of the mounting plate 12.

[0030] In this embodiment, the floating joint can reduce the vibration transmission between the slide plate 131 and the output end of the lifting cylinder 13, and when the position deviates, it will not affect the lifting cylinder 13 driving the slide plate 131 to lift.

[0031] Specifically, it also includes a product limiting block 19, which is located on one side of the column 11 and is used to limit the insertion tube to be shrunk. The top of the mounting plate 12 is also provided with a force-bearing seat 121 located on one side of the bushing 16. The force-bearing seat 121 is provided with a fixed shaft that is movably connected to the inside of the lever 15.

[0032] In this implementation scheme, the product limiting block 19 needs to be used in conjunction with the production line. The product limiting block 19 is fixed to the top of the outer frame of the production line. The production line is equipped with fixtures at equal intervals inside for carrying the solenoid valve needle tube. The solenoid valve needle tube is fed onto the fixture of the production line by a vibrating feeder and a direct vibrating feeder. When the fixture moves the unprocessed solenoid valve needle tube with the conveyor of the production line to the coaxial position opposite to the necking spring clamp 18, the production line stops. At this time, the product limiting block 19 is located on both sides of the solenoid valve needle tube, which limits the necking of the solenoid valve needle tube and prevents shaking. After the processing is completed, the production line continues to convey the next solenoid valve needle tube for necking processing.

[0033] In summary, this solenoid valve needle tube reduction device employs a design with multiple conical chucks 181 and clearance grooves 182. When the reduction spindle 17 descends, it uniformly squeezes the conical chucks 181 through the conical surface, ensuring that the diameter of the reduced end of the solenoid valve needle tube is consistent and avoiding deformation or eccentricity. The product limit block 19 limits the processing of the solenoid valve needle tube during reduction processing to prevent processing deviation. The reduction spring chuck 18 and the reduction spindle 17 structure can be adapted to different specifications of needle tubes. By replacing the reduction spring chuck 18, diverse reduction requirements can be met, which has broad application prospects.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic valve pin tube necking device comprising a necking device body (1), characterized in that: The necking device body (1) includes a column (11) and a mounting plate (12), one side of the column (11) is provided with a lifting cylinder (13) for driving the mounting plate (12), one end of the mounting plate (12) is internally provided with a necking main shaft (17) and a necking spring collet (18) sleeved in the necking main shaft (17), and the other end of the mounting plate (12) is provided with a necking cylinder (14) at the bottom for driving the necking main shaft (17).

2. The electromagnetic valve pin tube necking device of claim 1, wherein: A plurality of conical collets (181) are arranged on the bottom of the necking spring collet (18), and a clearance groove (182) is arranged between adjacent two conical collets (181).

3. The electromagnetic valve pin tube necking device of claim 2, wherein: The mounting plate (12) is internally provided with a shaft sleeve (16), and the shaft sleeve (16) is internally fixedly provided with a fixed block (161).

4. The electromagnetic valve pin tube necking device of claim 3, wherein: The shaft sleeve (16) is sleeved on the necking spring collet (18), and the necking spring collet (18) is internally provided with a through hole sleeved with the fixed block (161).

5. The electromagnetic valve pin tube necking apparatus of claim 1, wherein: The necking main shaft (17) is internally provided with a movable hole (171) and a driving hole (172) located above the movable hole (171), the width of the movable hole (171) is greater than that of the through hole, and the movable hole (171) is movably sleeved with the fixed block (161).

6. The electromagnetic valve pin tube necking device of claim 1, wherein: The output end of the necking cylinder (14) is provided with a connecting seat (141), and the top end of the connecting seat (141) is hingedly connected with a compensation seat (142).

7. The electromagnetic valve pin tube necking device of claim 1, wherein: A lever (15) is further included, one end of the lever (15) is provided with a compensation hole (151) movably sleeved with the top end of the compensation seat (142), and the other end is provided with a cam head (152) movably sleeved with the inside of the driving hole (172).

8. The electromagnetic valve pin tube necking device of claim 1, wherein: The mounting plate (12) is located above the column (11), and the output end of the lifting cylinder (13) is connected with a sliding plate (131) through a floating joint.

9. The electromagnetic valve pin tube necking apparatus of claim 8, wherein: The sliding plate (131) is slidably connected with one side of the column (11) through a slide rail, and the top of the sliding plate (131) is fixedly connected with the bottom of the mounting plate (12).

10. The electromagnetic valve pin tube necking apparatus of claim 1, wherein: A product limiting block (19) is further included, the product limiting block (19) is located on one side of the column (11) and is used for limiting the pin tube to be necked, and the top of the mounting plate (12) is further provided with a stress seat (121) located on one side of the shaft sleeve (16), and the inside of the stress seat (121) is provided with a fixed shaft movably sleeved with the inside of the lever (15).

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