Spring fatigue detection device for oil pump nozzle spring production

Abstract

The utility model discloses a spring fatigue detection device for oil pump nozzle spring production, which comprises a bottom plate and supporting columns, the top end of the bottom plate is provided with three groups of supporting columns, the bottom plate is internally provided with a fixed disc, the top end of the fixed disc is slidably provided with three groups of sliding blocks at equal intervals, and the three groups of sliding blocks are arranged on the bottom plate. Electric push rods are movably installed at the top ends of the sliding blocks, push arms are installed at the output ends of the electric push rods, supporting blocks are slidably installed at the positions, on one sides of the sliding blocks, of the top end of the fixing disc, the sliding blocks are connected with the supporting blocks, pin shafts are installed in the supporting blocks, and the surfaces of the pin shafts are sleeved with fixing buckles. According to the utility model, the spring can be conveniently clamped and fixed, the diameter of the spring can be conveniently adjusted and matched in a linkage manner, the fatigue of the spring can be conveniently tested by reciprocating up and down, the springs with different diameters can be rapidly adjusted and matched, and the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a spring fatigue detection device for producing oil pump nozzle springs. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external force and return to their original shape after the external force is removed. They are also called "springs" and are generally made of spring steel. There are many types of springs. According to their shapes, they mainly include coil springs, scroll springs, leaf springs, special-shaped springs, etc. Springs need to be tested for fatigue before they are produced and shipped to the factory to ensure their product quality.

[0003] For example, a spring fatigue detection device disclosed in the authorization announcement number CN220136653U includes a detection device body, a workbench is fixedly provided in the middle of the detection device body, a work box is provided at the upper end of the workbench, a groove is provided at the inner top of the work box, an upper clamping detection mechanism and a lower clamping detection mechanism are provided at the lower end of the groove, and the upper clamping detection mechanism includes a hydraulic rod, a fixing ring, a clamping groove, a clamping rod and a spring;

[0004] Although the hydraulic rod, fixing ring 1, clamping groove 1, clamping rod and spring in the upper clamping detection mechanism are provided, the lower end of the hydraulic rod is connected to the fixing ring 1, and the telescopic rod, fixing ring 2, clamping groove 2, threaded protrusion, connecting ring and threaded fixing groove in the lower clamping detection mechanism are provided, the spring end is stabilized to avoid the spring from deflecting during the detection process or bending and popping out during the compression process, thereby improving the supporting and stabilizing effect of the anti-dropping stabilizing mechanism on springs with different inner diameters;

[0005] However, the problem that the existing detection device is not conducive to convenient clipping and fixing of the spring and convenient linkage adjustment to adapt to the spring diameter during use, is not conducive to reciprocating up and down pulling of the spring to test fatigue and quickly adjust to adapt to springs of different diameters, affecting the convenience of using the device. Utility Model Content

[0006] The purpose of the utility model is to provide a spring fatigue detection device for oil pump nozzle spring production, so as to solve the problem that the detection device proposed in the above background technology is not convenient for convenient clipping and fixing of the spring and convenient linkage adjustment to adapt to the spring diameter, is not conducive to the up and down reciprocating pulling test of the spring fatigue and the rapid adjustment to adapt to springs of different diameters, which affects the convenience of using the device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spring fatigue detection device for oil pump nozzle spring production, comprising a base plate and a support column, three groups of support columns are installed on the top of the base plate, a fixed disk is installed inside the base plate, three groups of sliding blocks with equal spacing are slidably installed on the top of the fixed disk, electric push rods are movably installed on the top of the sliding blocks, push arms are installed on the output ends of the electric push rods, support blocks are slidably installed on the top of the fixed disk on one side of the sliding block, and the sliding blocks are connected to the support blocks, pins are installed inside the support blocks, and the surfaces of the pins are sleeved A fixing buckle is installed, and a hinge shaft is installed at the top of the fixing buckle, and the push arm is movably connected to the fixing buckle through the hinge shaft, a rotating box is installed inside the fixed disk, and a worm is movably installed inside the rotating box, a stepping motor is installed on the side wall of the rotating box, and the stepping motor is connected to the worm, a transmission shaft is movably installed inside the rotating box on one side of the worm, a worm gear is mounted on the surface of the transmission shaft, and the worm gear and the worm gear are meshed with each other, a rotating disk is installed at the bottom end of the transmission shaft, a top plate is installed on the top of the support column, a movable plate is arranged below the top plate, and the movable plate is slidably connected to the support column.

[0008] Preferably, a sliding rod is installed at the bottom end of each sliding block, and the sliding rod is fixedly connected to the sliding block.

[0009] Preferably, three groups of linear grooves with equal spacing are installed at the bottom end of the fixed plate, and the sliding rod is slidably connected to the linear grooves.

[0010] Preferably, three groups of arc grooves with equal spacing are installed at the bottom end of the rotating disk, and the sliding rods are slidably connected to the arc grooves.

[0011] Preferably, a servo motor is installed at the top end of the top plate, and a connecting rod is installed at the output end of the servo motor.

[0012] Preferably, a reciprocating swing arm is installed at one end of the connecting rod away from the servo motor, a movable shaft is installed at the top end of the reciprocating swing arm, and the reciprocating swing arm is movably connected to the connecting rod through the movable shaft.

[0013] Preferably, a linkage shaft is installed at the bottom end of the reciprocating swing arm, and the reciprocating swing arm is movably connected to the movable plate through the linkage shaft.

[0014] Preferably, another set of fixed disks is installed at the bottom end of the movable plate, and the other set of fixed disks is fixedly connected to the movable plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the detection device not only realizes convenient clamping and fixing of the spring and convenient linkage adjustment and adaptation of the spring diameter, but also facilitates the up and down reciprocating pulling test of the spring for fatigue and rapid adjustment and adaptation of springs of different diameters, and improves the convenience of using the device;

[0016] (1) The push arm is driven by the electric push rod to move, and the push arm drives the fixed buckle to rotate with the pin shaft as the axis through the hinge shaft. The three sets of fixed buckles cooperate with each other to make the fixed buckle clamped from the bottom of the spring to fix the spring. Repeat the above operation to clamp the upper part of the spring into the bottom end of the movable plate. The servo motor drives the connecting rod to rotate, and the connecting rod drives the reciprocating swing arm to rotate reciprocatingly through the movable shaft. The reciprocating swing arm drives the movable plate to slide reciprocatingly on the surface of the support column through the linkage shaft. The movable plate pulls the spring up and down reciprocatingly, and the fatigue resistance of the spring is visually observed by the personnel, so that the spring is conveniently fixed by the buckle clamp, which is convenient for the spring to be pulled up and down reciprocatingly to test the fatigue degree;

[0017] (2) The worm is driven to rotate by a stepper motor, which in turn drives the worm wheel, which in turn drives the transmission shaft, which in turn drives the rotating disk, which in turn drives the arc groove, which in turn drives the sliding rod to move inside the arc groove, which in turn drives the sliding rod to slide inside the linear groove, which in turn drives the sliding block to move, thereby driving the three sets of sliding blocks to move synchronously toward the center position, and the sliding block drives the fixing buckle to move synchronously inward, and then the same operation is performed to clamp and fix springs of different diameters to adjust and adapt to different spring diameters, thereby realizing convenient linkage adjustment to adapt to spring diameters, facilitating rapid adjustment to adapt to springs of different diameters, and improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the fixing plate of the utility model;

[0020] Figure 3 It is a front view cross-sectional structural schematic diagram of the fixed disk of the utility model;

[0021] Figure 4 This is a front view structural schematic diagram of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the arc groove of the utility model;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the linear groove of the utility model.

[0024] In the figure: 1. bottom plate; 2. support column; 3. movable plate; 4. top plate; 5. fixed plate; 6. servo motor; 7. reciprocating swing arm; 8. movable shaft; 9. connecting rod; 10. linkage shaft; 11. rotating plate; 12. sliding block; 13. electric push rod; 14. push arm; 15. hinge shaft; 16. fixing buckle; 17. pin shaft; 18. support block; 19. rotating box; 20. worm; 21. transmission shaft; 22. worm wheel; 23. stepping motor; 24. arc groove; 25. linear groove; 26. sliding rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides an embodiment: a spring fatigue detection device for oil pump nozzle spring production, comprising a base plate 1 and a support column 2, three groups of support columns 2 are installed on the top of the base plate 1, a fixed plate 5 is installed inside the base plate 1, three groups of sliding blocks 12 with equal spacing are slidably installed on the top of the fixed plate 5, electric push rods 13 are movably installed on the top of the sliding blocks 12, the electric push rods 13 play a role of power drive, and push arms 14 are installed on the output ends of the electric push rods 13, support blocks 18 are slidably installed on the top of the fixed plate 5 on one side of the sliding block 12, and the sliding block 12 is connected to the support block 18, and a pin shaft 17 is installed inside the support block 18, and the surface of the pin shaft 17 is covered with a fixing buckle 16, and the fixing buckle 1 6 are all equipped with hinge shafts 15 at the top, and the push arm 14 is movably connected with the fixed buckle 16 through the hinge shaft 15, a rotating box 19 is installed inside the fixed disk 5, a worm 20 is movably installed inside the rotating box 19, a stepping motor 23 is installed on the side wall of the rotating box 19, the stepping motor 23 plays a role of power drive, and the stepping motor 23 is connected to the worm 20, a transmission shaft 21 is movably installed inside the rotating box 19 on one side of the worm 20, a worm gear 22 is set on the surface of the transmission shaft 21, and the worm gear 22 and the worm 20 are meshed with each other, a rotating disk 11 is installed at the bottom end of the transmission shaft 21, a top plate 4 is installed at the top of the support column 2, a movable plate 3 is arranged below the top plate 4, and the movable plate 3 is slidably connected with the support column 2;

[0027] First, the device is connected to an external controller and an external circuit, and the spring to be tested is placed at the center of the fixed disk 5. The electric push rod 13 is opened by external control, and the push arm 14 is driven by the electric push rod 13 to move. Under the support of the support block 18, the push arm 14 drives the fixed buckle 16 to rotate with the pin shaft 17 as the axis through the hinge shaft 15. The three groups of fixed buckles 16 cooperate with each other to make the fixed buckle 16 clamped from the lower part of the spring to fix the spring. Repeat the above operation to clamp the upper part of the spring into the bottom end of the movable plate 3. Then, the servo motor 6 is opened by external control, and the servo motor 6 drives the connecting rod 9 to rotate. The connecting rod 9 drives the reciprocating swing arm 7 to reciprocate through the movable shaft 8. Under the support of the support column 2, the reciprocating swing arm 7 drives the movable plate 3 to slide back and forth on the surface of the support column 2 through the linkage shaft 10. The movable plate 3 pulls the spring up and down reciprocatingly, and the fatigue resistance of the spring is visually observed by personnel, so that the spring is conveniently fixed by buckling and clamping, which is convenient for testing the fatigue degree of the spring by reciprocating movement and pulling up and down.

[0028] The bottom end of the sliding block 12 is equipped with a sliding rod 26, and the sliding rod 26 is fixedly connected to the sliding block 12;

[0029] The bottom end of the fixed disk 5 is provided with three groups of linear grooves 25 with equal spacing, and the slide rods 26 are slidably connected to the linear grooves 25. The bottom end of the rotating disk 11 is provided with three groups of arc grooves 24 with equal spacing, and the slide rods 26 are slidably connected to the arc grooves 24.

[0030] A servo motor 6 is installed at the top of the top plate 4, and the servo motor 6 plays a role of power driving. A connecting rod 9 is installed at the output end of the servo motor 6, and a reciprocating swing arm 7 is installed at the end of the connecting rod 9 away from the servo motor 6. A movable shaft 8 is installed at the top of the reciprocating swing arm 7, and the reciprocating swing arm 7 is movably connected to the connecting rod 9 through the movable shaft 8;

[0031] A linkage shaft 10 is installed at the bottom end of the reciprocating swing arm 7, and the reciprocating swing arm 7 is movably connected to the movable plate 3 through the linkage shaft 10. Another set of fixed disks 5 is installed at the bottom end of the movable plate 3, and the other set of fixed disks 5 is fixedly connected to the movable plate 3.

[0032] When the diameters of the springs are different, the stepper motor 23 is turned on by external control, and the stepper motor 23 drives the worm 20 to rotate. Under the mutual meshing of the worm 20 and the worm wheel 22, the worm 20 drives the worm wheel 22 to rotate, the worm wheel 22 drives the transmission shaft 21 to rotate, the transmission shaft 21 drives the rotating disk 11 to rotate, and the rotating disk 11 drives the arc groove 24 to rotate. Under the sliding cooperation between the arc groove 24 and the slide rod 26, the arc groove 24 drives the slide rod 26 to move inside the arc groove 24, and the fixed disk 5 is fixed. Under the support, the slide bar 26 slides inside the linear groove 25, and the slide bar 26 drives the slide block 12 to move, thereby driving the three groups of slide blocks 12 to move synchronously toward the center position. Under the sliding cooperation of the support block 18, the slide block 12 drives the fixing buckle 16 to move synchronously inward, and then the same operation is performed to clamp and fix springs of different diameters to adjust and adapt to different spring diameters, thereby realizing convenient linkage adjustment to adapt to spring diameters, facilitating rapid adjustment to adapt to springs of different diameters, and improving the convenience of using the device.

[0033] Working principle: First, the electric push rod 13 drives the push arm 14 to move, and the push arm 14 drives the fixed buckle 16 to rotate with the pin shaft 17 as the axis through the hinge shaft 15. The three groups of fixed buckles 16 cooperate with each other to make the fixed buckle 16 clamped from the bottom of the spring to fix the spring. Repeat the above operation to clamp the upper part of the spring into the bottom end of the movable plate 3. The servo motor 6 drives the connecting rod 9 to rotate, and the connecting rod 9 drives the reciprocating swing arm 7 to rotate reciprocatingly through the movable shaft 8. The reciprocating swing arm 7 drives the movable plate 3 to slide reciprocatingly on the surface of the support column 2 through the linkage shaft 10. The movable plate 3 pulls the spring up and down reciprocatingly, and the fatigue resistance of the spring is visually observed by personnel. When the diameter of the spring is different, the stepping motor 23 drives the worm 20 to rotate, and the worm 20 drives the worm gear 22 to rotate, the worm gear 22 drives the transmission shaft 21 to rotate, the transmission shaft 21 drives the rotating disk 11 to rotate, and the rotating disk 11 drives the arc groove 24 to rotate. Under the sliding cooperation between the arc groove 24 and the slide bar 26, the arc groove 24 drives the slide bar 26 to move inside the arc groove 24, and the slide bar 26 slides inside the linear groove 25. The slide block 12 is driven by the slide bar 26 to move, so as to drive the three groups of slide blocks 12 to move synchronously toward the center position. Under the sliding cooperation of the support block 18, the slide block 12 drives the fixing buckle 16 to move synchronously inward, and then the same operation is performed to clamp and fix springs of different diameters to adjust and adapt to different spring diameters, so as to complete the use of the spring fatigue detection device for the production of oil pump nozzle springs.

Claims

1. A spring fatigue detection device for oil pump nozzle spring production, comprising a base plate (1) and a support column (2), characterized in that: The top of the base plate (1) is provided with three groups of support columns (2), the interior of the base plate (1) is provided with a fixed plate (5), the top of the fixed plate (5) is provided with three groups of sliding blocks (12) with equal spacing, the top of the sliding blocks (12) are provided with electric push rods (13) movably, the output ends of the electric push rods (13) are provided with push arms (14), the top of the fixed plate (5) on one side of the sliding blocks (12) are provided with support blocks (18) slidably, and the sliding blocks (12) are connected to the support blocks (18), the interior of the support blocks (18) are provided with pins (17), the surfaces of the pins (17) are provided with fixing buckles (16), the tops of the fixing buckles (16) are provided with hinge shafts (15), and the push arms (14) are connected to the hinge shafts (15) by the hinge shafts (16). 5) is movably connected with the fixing buckle (16), a rotating box (19) is installed inside the fixing plate (5), a worm (20) is movably installed inside the rotating box (19), a stepping motor (23) is installed on the side wall of the rotating box (19), and the stepping motor (23) is connected to the worm (20), a transmission shaft (21) is movably installed inside the rotating box (19) on one side of the worm (20), a worm wheel (22) is mounted on the surface of the transmission shaft (21), and the worm wheel (22) and the worm (20) are meshed with each other, a rotating plate (11) is installed at the bottom end of the transmission shaft (21), a top plate (4) is installed at the top end of the support column (2), a movable plate (3) is arranged below the top plate (4), and the movable plate (3) is slidably connected to the support column (2).

2. A spring fatigue detection device for oil pump nozzle spring production according to claim 1, characterized in that: A sliding rod (26) is installed at the bottom end of each sliding block (12), and the sliding rod (26) is fixedly connected to the sliding block (12).

3. A spring fatigue detection device for oil pump nozzle spring production according to claim 1, characterized in that: The bottom end of the fixed plate (5) is provided with three groups of linear grooves (25) with equal spacing, and the sliding rod (26) is slidably connected with the linear grooves (25).

4. A spring fatigue detection device for oil pump nozzle spring production according to claim 1, characterized in that: The bottom end of the rotating disk (11) is provided with three groups of arc grooves (24) with equal spacing, and the sliding rod (26) is slidably connected with the arc grooves (24).

5. The spring fatigue detection device for oil pump nozzle spring production according to claim 1, characterized in that: A servo motor (6) is installed at the top end of the top plate (4), and a connecting rod (9) is installed at the output end of the servo motor (6).

6. A spring fatigue detection device for oil pump nozzle spring production according to claim 5, characterized in that: A reciprocating swing arm (7) is installed at one end of the connecting rod (9) away from the servo motor (6), a movable shaft (8) is installed at the top end of the reciprocating swing arm (7), and the reciprocating swing arm (7) is movably connected to the connecting rod (9) via the movable shaft (8).

7. A spring fatigue detection device for oil pump nozzle spring production according to claim 6, characterized in that: A linkage shaft (10) is installed at the bottom end of the reciprocating swing arm (7), and the reciprocating swing arm (7) is movably connected to the movable plate (3) via the linkage shaft (10).

8. The spring fatigue detection device for oil pump nozzle spring production according to claim 1, characterized in that: Another set of fixed plates (5) is installed at the bottom end of the movable plate (3), and the other set of fixed plates (5) is fixedly connected to the movable plate (3).

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