CN214952772U

CN214952772U - Spring fatigue strength detection device

Info

Publication number: CN214952772U
Application number: CN202120991386.2U
Authority: CN
Inventors: 温东成; 王小平
Original assignee: Shanghai Gaoyan Hardware Products Co ltd
Current assignee: Shanghai Gaoyan Hardware Products Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-30
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a spring fatigue strength detection device, which comprises a machine body, wherein two sides of the inner wall of the bottom of the machine body are movably connected with lead screws, two lead screws are sleeved with and are in threaded connection with sliders, one side of the top of one slider is fixedly provided with a movable plate, the middle part of the inner wall of the bottom of the machine body is fixedly provided with a fixed seat, the middle part of the bottom end of the movable plate and the middle part of the top end of the fixed seat are movably connected with clamping devices, two clamping devices comprise two fixed blocks, the middle parts of one sides of the two fixed blocks are both provided with L-shaped grooves, the two clamping devices are positioned in the same vertical plane and can drive the movable plate and a positioning plate to move up and down by utilizing a driving motor, so that the spring between the movable plate and a fixed seat beam device can change the stretching length, and the movable positioning plate is utilized to determine the distance of the movable plate stretching spring, make fatigue strength detection device can detect the spring of equidimension not, and the suitability is stronger.

Description

Spring fatigue strength detection device

Technical Field

The utility model relates to a spring detection device, in particular to spring fatigue strength detection device belongs to spring detection technical field.

Background

A spring is a mechanical part that works by elasticity. The spring bears load in work, and the fatigue strength of the spring directly influences the function realization, reliability and service life of the whole part because the spring load force plays the roles of movement and control. Therefore, it is necessary to perform fatigue test on the spring to ensure the quality of the spring, and after the spring is produced and processed, the fatigue resistance test is performed according to the requirement.

Present spring fatigue resistance detection device is reciprocal distance when can't changing the spring test, use detection device to carry out fatigue resistance to the spring and detect time, generally through setting up electric putter, the reciprocating motion of hydraulic stem, or the rotation through the eccentric disc is as reciprocating drive test, when testing, often can only be with spring extension one-tenth fixed length, if need test the spring of equidimension not, surpass the length limit of spring easily, can't accomplish the test, and need fix the both ends of spring during the test, if can not stable fixed, make the spring break away from when lengthening easily, influence normal test flow.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring fatigue strength detection device to solve the problem of reciprocal distance when the spring fatigue strength detection device who provides in the above-mentioned background art can't change the spring test.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spring fatigue strength detection device, includes the organism, the both sides swing joint of bottom of the body inner wall has the lead screw, two the outside cover of lead screw is established and threaded connection has the slider, one of them the fixed fly leaf that is equipped with in one side at slider top, the fixed fixing base that is equipped with in middle part of bottom of the body inner wall, the equal swing joint in middle part on middle part and the fixing base top of fly leaf bottom has clamping device, two clamping device includes two fixed blocks, two the L shape groove, two have all been seted up at the middle part of fixed block one side clamping device is located same vertical plane.

As a preferred technical scheme of the utility model, another one side fixedly connected with locating plate at slider top, the fixed photoelectric sensor that is equipped with of avris of locating plate bottom, the bottom and the fly leaf contact of locating plate are connected, the fixed beam ware that is equipped with in middle part of fly leaf one side, beam ware and photoelectric sensor are in same horizontal plane.

As a preferred technical scheme of the utility model, two the equal fixedly connected with movable block of avris at fixed block top middle part, the spout has been seted up at the middle part of fly leaf bottom, the middle part fixedly connected with guide rail of spout one side inner wall, two the outside of guide rail, one of them are located to the movable block cover movable block and fly leaf and guide rail fixed connection, another movable block and guide rail sliding connection.

As a preferred technical scheme of the utility model, two threaded hole is seted up at the middle part of movable block one side, the both sides cell wall threaded connection of screw hole has the threaded rod.

As a preferred technical scheme of the utility model, the avris swing joint at the positive middle part of fixed block has first adjusting bolt, the middle part swing joint of fixed block bottom has second adjusting bolt, the one end swing joint in L shape groove has first adjusting bolt, the other end swing joint in L shape groove has second adjusting bolt.

As a preferred technical scheme of the utility model, the middle part fixedly connected with pivot on lead screw top, the inner wall of organism is passed on the top of pivot, just the top fixedly connected with driving motor of pivot.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a spring fatigue resistance intensity detection device:

through the mutual matching of the machine body, the lead screw, the rotating shaft, the driving motor, the sliding block, the movable plate, the light beam device, the sliding chute, the guide rail, the movable block, the fixed block, the threaded hole, the threaded rod, the L-shaped groove, the first adjusting bolt, the second adjusting bolt, the fixed seat, the positioning plate and the photoelectric sensor, the movable plate and the positioning plate can be driven to move up and down by the driving motor, so that the stretched length of a spring between the movable plate and the fixed seat can be changed, the distance of the stretching spring of the movable plate is determined by the movable positioning plate, the fatigue strength detection device can detect springs with different sizes, the applicability is stronger, the springs can be fixed more stably by the L-shaped groove and the adjusting bolts at two ends, the springs cannot be normally tested due to loosening, and the times of the specific stretching spring can be known by the times of sensing light rays of the light beam device by the photoelectric sensor, the detection is more convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of the fixing block of the present invention.

In the figure: 1. a body; 2. a lead screw; 3. a rotating shaft; 4. a drive motor; 5. a slider; 6. a movable plate; a beam splitter 7, a beam splitter; 8. a chute; 9. a guide rail; 10. a movable block; 11. a fixed block; 12. a threaded hole; 13. a threaded rod; 14. an L-shaped slot; 15. a first adjusting bolt; 16. a second adjusting bolt; 1, a light beam device 7 and a fixed seat; 18. positioning a plate; 19. a photoelectric sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution of a spring fatigue strength testing apparatus:

according to the figure 1-2, comprising a machine body 1, wherein two sides of the inner wall of the bottom of the machine body 1 are movably connected with lead screws 2, the outer sides of the two lead screws 2 are sleeved with and are in threaded connection with sliders 5, one side of the top of one slider 5 is fixedly provided with a movable plate 6, the middle of the inner wall of the bottom of the machine body 1 is fixedly provided with a fixed seat 17, the middle of the bottom end of the movable plate 6 and the middle of the top end of the fixed seat 17 are both movably connected with clamping devices, the two clamping devices comprise two fixed blocks 11, the middle of one side of each fixed block 11 is provided with an L-shaped groove 14, the two clamping devices are positioned in the same vertical plane, one side of the top of the other slider 5 is fixedly connected with a positioning plate 18, the side of the bottom end of the positioning plate 18 is fixedly provided with a photoelectric sensor 19, the bottom end of the positioning plate 18 is in contact connection with the movable plate 6, the middle of one side of the movable plate 6 is fixedly provided with a light beam device 7, and the light beam device 7 and the photoelectric sensor 19 are positioned in the same horizontal plane, the side edges of the middle parts of the top ends of two fixed blocks 11 are fixedly connected with movable blocks 10, the middle part of the bottom end of a movable plate 6 is provided with a sliding chute 8, the middle part of the inner wall of one side of the sliding chute 8 is fixedly connected with a guide rail 9, the two movable blocks 10 are sleeved outside the guide rail 9, one movable block 10 is fixedly connected with the movable plate 6 and the guide rail 9, the other movable block 10 is slidably connected with the guide rail 9, the middle part of one side of each movable block 10 is provided with a threaded hole 12, the two side groove walls of the threaded hole 12 are in threaded connection with a threaded rod 13, the side edge of the middle part of the front surface of the fixed block 11 is movably connected with a first adjusting bolt 15, the middle part of the bottom of the fixed block 11 is movably connected with a second adjusting bolt 16, one end of an L-shaped groove 14 is movably connected with the first adjusting bolt 15, the other end of the L-shaped groove 14 is movably connected with the second adjusting bolt 16, the middle part of the top end of a screw rod 2 is fixedly connected with a rotating shaft 3, and the top end of the rotating shaft 3 passes through the inner wall of a machine body 1, and the top fixedly connected with driving motor 4 of pivot 3, utilize driving motor 4 can drive fly leaf 6 and locating plate 18 and reciprocate, make the spring between fly leaf 6 and the fixing base 17 can change tensile length, utilize mobilizable locating plate 18 to confirm fly leaf 6 extension spring's distance, make fatigue strength detection device can detect the spring of equidimension not, the suitability is stronger, utilize the adjusting bolt at L-shaped groove 14 and both ends, can be more firm with the spring is fixed, make the spring can not lead to the unable normal clear of test because of loosening, utilize the number of times that photoelectric sensor 19 response light beam ware 7 transmitted light can learn concrete extension spring, it is more convenient to detect.

When the device is used, the driving motor 4 for driving the positioning plate 18 is started, the output shaft of the driving motor 4 starts to rotate, the output shaft of the driving motor 4 drives the rotating shaft 3 to rotate, the lead screw 2 fixedly connected with the rotating shaft 3 rotates, the slider 5 outside the lead screw 2 slides along the lead screw 2, the positioning plate 18 on one side of the slider 5 moves to a proper height, two ends of the spring are respectively placed into the L-shaped grooves 14 in the fixed blocks 11 on the movable plate 6 and the fixed seat 17 to rotate the threaded rod 13, the threaded rod 13 drives the movable block 10 which can move to be attached to the fixed movable block 10, the movable block 10 moves in the guide rail 9 along the guide rail 9, the two movable blocks 10 are attached to the fixed block 11, the L-shaped grooves 14 fix two ends of the spring, the first adjusting bolt 15 and the second adjusting bolt 16 are rotated, the first adjusting bolt 15 and the second adjusting bolt 16 fix the spring to two ends of the L-shaped groove 14 respectively, so that the spring is less prone to being separated from the fixed block 11, the movable plate 6 is driven to move along with the slider 5 through rotation of the screw rod 2, when the top end of the movable plate 6 is in contact with the positioning plate 18, the movable plate 6 stops moving upwards, the movable plate 6 moves downwards, the light beam emitted by the light beam device 7 on one side of the movable plate 6 is sensed by the photoelectric sensor 19 below the positioning plate 18, and the number of times that the spring is stretched is obtained by reading the number of times sensed by the photoelectric sensor 19.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. The utility model provides a spring fatigue strength detection device, includes organism (1), its characterized in that, the both sides swing joint of organism (1) bottom inner wall has lead screw (2), two the outside cover of lead screw (2) is established and threaded connection has slider (5), one of them fixed fly leaf (6) that are equipped with in one side at slider (5) top, the fixed fixing base (17) that are equipped with in middle part of organism (1) bottom inner wall, the equal swing joint in middle part on the middle part of fly leaf (6) bottom and fixing base (17) top has clamping device, two clamping device includes two fixed blocks (11), two L shape groove (14), two have all been seted up at the middle part of fixed block (11) one side clamping device is located same vertical face.

2. The spring fatigue strength detecting device according to claim 1, wherein: another one side fixedly connected with locating plate (18) at slider (5) top, the avris of locating plate (18) bottom is fixed and is equipped with photoelectric sensor (19), the bottom and fly leaf (6) contact of locating plate (18) are connected, the fixed beam ware (7) that is equipped with in middle part of fly leaf (6) one side, beam ware (7) and photoelectric sensor (19) are in same horizontal plane.

3. The spring fatigue strength detecting device according to claim 1, wherein: two the equal fixedly connected with movable block (10) of avris at fixed block (11) top middle part, spout (8) have been seted up at the middle part of fly leaf (6) bottom, the middle part fixedly connected with guide rail (9) of spout (8) one side inner wall, two the outside of guide rail (9) is located to movable block (10) cover, one of them movable block (10) and fly leaf (6) and guide rail (9) fixed connection, another movable block (10) and guide rail (9) sliding connection.

4. A spring fatigue strength testing apparatus according to claim 3, wherein: threaded holes (12) are formed in the middle of one side of each of the two movable blocks (10), and threaded rods (13) are connected to groove walls on the two sides of each threaded hole (12) in a threaded mode.

5. The spring fatigue strength detecting device according to claim 1, wherein: the avris swing joint in the middle part of fixed block (11) front has first adjusting bolt (15), the middle part swing joint of fixed block (11) bottom has second adjusting bolt (16), the one end swing joint in L-shaped groove (14) has first adjusting bolt (15), the other end swing joint in L-shaped groove (14) has second adjusting bolt (16).

6. The spring fatigue strength detecting device according to claim 1, wherein: the middle part fixedly connected with pivot (3) on lead screw (2) top, the inner wall of organism (1) is passed on the top of pivot (3), just the top fixedly connected with driving motor (4) of pivot (3).