Fixing device for spring fatigue test

Abstract

The utility model discloses a fixing device for a spring fatigue test, which comprises a working box, a supporting column is arranged on the top wall of the working box, a supporting plate is arranged on the supporting column in a sliding manner, a sleeve rod is detachably arranged on the supporting plate, a pressing plate is detachably arranged on the supporting column, a through hole opposite to the sleeve rod is formed in the pressing plate, and a through hole is formed in the top wall of the working box. During use, the sleeve rod is sleeved with the spring, and the spring is located between the supporting plate and the pressing plate. A reciprocating mechanism for driving the supporting plate to move up and down is arranged in the working box. The utility model belongs to the technical field of spring fixing devices, and particularly relates to a fixing device for a spring fatigue test.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spring fixing device technical field, specifically point to a kind of fixed device for spring fatigue test. BACKGROUND

[0002] In modern industrial production and scientific research, the application of spring is extremely wide, such as automobile suspension system, mechanical damping device, various electrical equipment, etc., the fatigue performance of spring is directly related to the reliability and safety of related equipment in long-term use, therefore, fatigue test of spring is the key link to ensure the quality and performance of spring.

[0003] Traditional spring fatigue test device is not high in compatibility for different specifications of spring, and usually needs tedious adjustment process when installing spring, and it is difficult to quickly adapt to the length, inner diameter and other parameter changes of various springs. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that traditional spring fatigue test device is not high in compatibility for different specifications of spring.

[0005] In order to realize the above function, the technical scheme adopted by the utility model is as follows: a kind of fixed device for spring fatigue test, including working tank, the top wall of the working tank is provided with support column, the support column is slidably provided with supporting plate, the supporting plate is detachably provided with sleeve rod, the support column is detachably provided with pressing plate, the pressing plate is provided with through hole opposite to sleeve rod, spring is sleeved on sleeve rod and located between supporting plate and pressing plate during use, the working tank is provided with reciprocating mechanism for driving supporting plate to move up and down.

[0006] Preferably, the supporting plate is provided with insertion hole, the bottom end of the sleeve rod is fixedly connected with stud one, the stud one penetrates out of the insertion hole and is threadedly connected with nut, and the sleeve rod is locked on the supporting plate through the nut and the stud one.

[0007] Preferably, the support column is slidably sleeved with sliding sleeve, the two ends of the pressing plate are arranged on the sliding sleeve, the sliding sleeve is threadedly connected with fastening bolt, the support column is provided with a plurality of screw holes, the fastening bolt is threadedly connected with the screw holes, and the two ends of the pressing plate are detachably arranged on the sliding sleeve.

[0008] Preferably, the side wall of the sliding sleeve is provided with clamping seat, the top of the clamping seat is provided with recess, the two ends of the pressing plate are provided with clamping plate, the clamping plate is clamped into the recess, the clamping seat is provided with clamping groove, the clamping groove is arranged through the recess, the clamping plate is provided with limiting groove, the clamping groove is rotatably provided with stud two through shaft, the stud two is clamped into the limiting groove and the clamping groove, the stud two is threadedly connected with nut, and the nut is pressed against the side wall of the clamping seat.

[0009] Preferably, the bottom of the supporting plate is connected with a slide rod, the slide rod is slidably arranged through the top of the working box and the bottom end of the slide rod is arranged in the working box, and the slide rod is connected with the reciprocating mechanism in the working box.

[0010] Preferably, the reciprocating mechanism comprises a support, a connecting rod one, a connecting rod two and a driving motor, the support is arranged on the inner bottom wall of the working box, the driving motor is arranged on the support, the output end of the driving motor is rotatably arranged through the support and extends out, one end of the connecting rod one is connected with the output end of the driving motor, one end of the connecting rod two is hingedly connected with the bottom end of the slide rod, and the other end of the connecting rod two and the other end of the connecting rod one are rotatably connected.

[0011] The utility model discloses adopt above -mentioned structure and obtain beneficial effect as follows: through setting the bushing and the stud one cooperation of sleeve rod bottom end on the supporting plate, and utilize the nut to realize the quick disassembly and replacement of sleeve rod, can conveniently select appropriate sleeve rod according to the inside diameter or length of spring, greatly improved the adaptability of device to different specifications spring, the connecting mode of the sliding sleeve on the support column and the pressing plate is flexible and various, and the sliding sleeve position can be adjusted by unscrewing the fastening bolt to adapt to the spring length change, and simultaneously the design of the clamping seat, the clamping plate, the stud two and the nut makes when taking and placing the spring not to move the sliding sleeve, simplifies the operation process, and saves the test time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic of the utility model embodiment Figure 1 ;

[0013] Figure 2 It is the whole structure schematic of the utility model embodiment Figure 2 ;

[0014] Figure 3 It is the whole structure schematic of the utility model embodiment Figure 3 ;

[0015] Figure 4 It is the whole structure schematic of the utility model embodiment Figure 4 ;

[0016] Figure 5 It is the whole structure schematic of the utility model embodiment Figure 5 .

[0017] Among them, 1, working box, 2, support column, 3, supporting plate, 4, sleeve rod, 5, pressing plate, 6, through-hole, 7, bushing, 8, stud one, 9, nut, 10, sliding sleeve, 11, fastening bolt, 12, screw hole, 13, sliding sleeve, 14, clamping seat, 15, recess, 16, clamping plate, 17, slot, 18, limit slot, 19, stud two, 20, slide rod, 21, reciprocating mechanism, 22, support, 23, connecting rod one, 24, connecting rod two, 25, driving motor. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The present application will be further described in detail below in conjunction with the drawings.

[0020] As shown in Figures 1-5 The present application provides a fixing device for spring fatigue test, which comprises a working box 1, the top wall of the working box 1 is provided with two opposite support columns 2, a supporting plate 3 is slidably arranged on the support column 2, a sleeve rod 4 is detachably arranged on the supporting plate 3, a pressing plate 5 is detachably arranged on the support column 2, the pressing plate 5 is provided with a through hole 6 opposite to the sleeve rod 4, a reciprocating mechanism 21 for driving the supporting plate 3 to move up and down is arranged in the working box 1, the spring is sleeved on the sleeve rod 4 by removing the pressing plate 5, after sleeving, the position of the pressing plate 5 is adjusted according to the length of the spring, and the sleeve rod 4 passes through the through hole 6, the detachable pressing plate and sleeve rod are used to replace the sleeve rod 4 of different diameters and heights for the spring of different heights and inner diameters, and the pressing plate 5 is matched with the diameter of the sleeve rod 4.

[0021] As shown in Figures 2-3 The supporting plate 3 is provided with a bushing 7, the bottom end of the sleeve rod 4 is fixedly connected with a stud 8, the stud 8 passes through the bushing 7 and is threadedly connected with a nut 9, the sleeve rod 4 is locked on the supporting plate 3 through the nut 9 and the stud 8, the sleeve rod 4 can be removed by unscrewing the nut 9, so as to replace the sleeve rod 4 according to the inner diameter or length of the spring.

[0022] As shown in Figure 4As shown, the support column 2 is sleeved with a sliding sleeve 10, both ends of the pressing plate 5 are detachably arranged on the sliding sleeve 10, the sliding sleeve 10 is threadedly connected with a fastening bolt 11, the support column 2 is provided with a plurality of screw holes 12, the fastening bolt 11 is threadedly connected with the screw holes 12, by unscrewing the fastening bolt 11, the position of the sliding sleeve 10 can be adjusted according to the length of the spring, so as to adjust the position of the pressing plate 5.

[0023] As shown in the drawings, Figure 5 The side wall of the sliding sleeve 10 is provided with a clamping seat 13, the top of the clamping seat 13 is provided with a groove 14, both ends of the pressing plate 5 are provided with a clamping plate 15, the clamping plate 15 is clamped into the groove 14, the clamping seat 13 is provided with a clamping groove 16, the clamping groove 16 is arranged through the groove 14, the clamping plate 15 is provided with a limiting groove 17, the clamping groove 16 is rotatably provided with a second stud 18, the second stud 18 is clamped into the limiting groove 17 and the clamping groove 16, the second stud 18 is threadedly connected with a nut 19, the nut 19 is pressed against the side wall of the clamping seat 13, by unscrewing the nut 19, the second stud 18 can be unscrewed from the clamping groove 16 and the limiting groove 17, so as to take and place the spring without moving the sliding sleeve 10, avoiding repeatedly positioning the position of the sliding sleeve 10.

[0024] As shown in the drawings, Figure 3 The bottom of the supporting plate 3 is connected with a sliding rod 20, the sliding rod 20 is slidably arranged through the top of the working box 1 and arranged in the working box 1, the sliding rod 20 is connected with a reciprocating mechanism 21 in the working box 1, the reciprocating mechanism 21 comprises a support 22, a connecting rod 23, a connecting rod 24 and a driving motor 25, the support 22 is arranged on the inner bottom wall of the working box 1, the driving motor 25 is arranged on the support 22, the output end of the driving motor 25 is rotatably arranged through the support 22 and extends out, one end of the connecting rod 23 is connected with the output end of the driving motor 25, one end of the connecting rod 24 is hingedly connected with the bottom end of the sliding rod 20, the other end of the connecting rod 24 and the other end of the connecting rod 23 are rotatably connected, by starting the driving motor 25, the sliding rod 20 can be driven to move up and down through the connecting rod 23 and the connecting rod 24, the supporting plate 3 is driven to move up and down by the sliding rod 20, so as to perform the elastic fatigue test on the spring.

[0025] In use, first, according to the inner diameter and length of the spring to be tested, the sleeve rod 4 is selected, the stud 8 at the bottom end of the sleeve rod 4 is passed through the insertion hole 7 on the supporting plate 3, then the nut 9 is tightened to firmly lock the sleeve rod 4 on the supporting plate 3, then the screw cap 19 is loosened, the stud 18 is rotated out of the limiting slot 17 on the clamping plate 15 and the clamping groove 16, the clamping plate 15 at both ends of the pressing plate 5 is taken out of the recess 14 on the top of the clamping seat 13, so that the pressing plate 5 is removed, then the spring is sleeved on the sleeve rod 4, the pressing plate 5 is installed back to the original position, that is, the clamping plate 15 is clamped into the recess 14, the stud 18 is passed through the clamping groove 16 and clamped into the limiting slot 17, and the screw cap 19 is tightened to fix, then according to the length of the spring, the fastening bolt 11 is loosened, the position of the sliding sleeve 10 on the supporting column 2 is adjusted, the sleeve rod 4 can be passed out of the through hole 6 on the pressing plate 5 to a proper length, and then the fastening bolt 11 is tightened, so that the fixing is completed, and when the same type of spring is tested, the pressing plate 5 can be removed through the design of the clamping seat 13, the clamping plate 15, the stud 18 and the screw cap 19, and the sliding sleeve 10 does not need to be removed, so that the process of repositioning the sliding sleeve 10 is simplified.

[0026] The driving motor 25 is started, the output end of the driving motor drives the connecting rod 1 to rotate, the connecting rod 1 and the connecting rod 2 drive the sliding rod 20 to move up and down reciprocatingly, the sliding rod 20 drives the supporting plate 3 to move up and down, and the spring on the supporting plate 3 is compressed and stretched, so that the elastic fatigue test of the spring is realized.

[0027] The above describes the utility model and its implementation, which is not limited, and the drawings only show one of the embodiments of the utility model, and the actual structure is not limited. In summary, if a person skilled in the art is inspired, without departing from the purpose of the utility model, without creative design, similar structure and embodiments of the technical solution are not included in the protection scope of the utility model.

Claims

1. A fixture for spring fatigue testing, characterized by: Including work box, top wall of work box is equipped with support column, support column is equipped with support plate on sliding, support plate is detachably equipped with sleeve rod on, support column is detachably equipped with pressing plate, pressing plate is equipped with through hole opposite to sleeve rod on, spring is sleeved on sleeve rod and is located between support plate and pressing plate when using, reciprocating mechanism that drives support plate to move up and down is equipped in work box.

2. The fixture of claim 1, wherein: The support plate is provided with a bushing, and the bottom end of the sleeve rod is fixedly connected with a stud, the stud penetrates out of the bushing and is threadedly connected with a nut, and the sleeve rod is locked on the support plate through the nut and the stud.

3. The fixture of claim 1, wherein: The support column is slidably sleeved with a sliding sleeve, the two ends of the pressing plate are arranged on the sliding sleeve, a fastening bolt is threadedly connected on the sliding sleeve, a plurality of screw holes are arranged on the support column, the fastening bolt is threadedly connected with the screw holes, and the two ends of the pressing plate are detachably arranged on the sliding sleeve.

4. The fixture of claim 3, wherein: The side wall of the sliding sleeve is provided with a clamping seat, the top of the clamping seat is provided with a groove, the two ends of the pressing plate are provided with clamping plates, the clamping plates are clamped into the groove, the clamping seat is provided with a clamping groove, the clamping groove is arranged through the groove, the clamping plate is provided with a limiting groove, the clamping groove is rotatably provided with a second stud through a shaft, the second stud is clamped into the limiting groove and the clamping groove, a nut is threadedly connected with the second stud, and the nut presses the side wall of the clamping seat.

5. The fixture of claim 1, wherein: The bottom of the support plate is connected with a sliding rod, the sliding rod is slidably arranged through the top of the work box and arranged in the work box at the bottom end, and the bottom end of the sliding rod is connected with the reciprocating mechanism in the work box.

6. The fixture of claim 5, wherein: The reciprocating mechanism comprises a support, a connecting rod one, a connecting rod two and a driving motor, the support is arranged on the inner bottom wall of the work box, the driving motor is arranged on the support, the output end of the driving motor is rotatably arranged through the support and protrudes, one end of the connecting rod one is connected to the output end of the driving motor, one end of the connecting rod two is hingedly connected to the bottom end of the sliding rod, and the other end of the connecting rod two and the other end of the connecting rod one are rotatably connected.

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