A test device for spring performance detection

Abstract

The present invention discloses a testing device for spring performance detection, belonging to the field of spring detection devices, including an annular base. A surrounding tooth groove is opened at the top of the annular base, and a follower gear is meshed and connected to the surface of the surrounding tooth groove. The center of the follower gear is connected to the annular base through a driving component, and a vertical rod component is arranged at the top of the driving component. Through the combined setting of the arc groove and the fan-shaped movable arm, the fan-shaped movable arm is clamped on the side of the spring coil through the spring body clamping plate inside. When the spring compresses and the coil twists under the action of the testing machine, it can drive the fan-shaped movable arm to deflect with the spring body clamping plate as the axis, so as to detect the torsional fatigue of the spring coil through the deflection angle of the torsional detection head body on the arc plate. The response and recovery performance of the spring can be reflected through the torsional deviation of the spring coil, thereby improving the reliability of spring fatigue detection and the durability of the spring.

Description

Technical Field

[0001] The present invention relates to the technical field of spring detection devices, and particularly to a test device for spring performance detection. Background Art

[0002] The dynamic performance detection of a spring generally refers to the performance of the spring under periodic loads or alternating stresses. The spring performance detection is usually carried out with the assistance of instruments such as a servo hydraulic testing machine or a vibration table for tests such as fatigue life, damping characteristics, frequency phase, and amplitude dependence.

[0003] The existing detection devices cannot change the detection position in real time when dynamically detecting the spring fatigue, which is not convenient for analyzing the axial and torsional fatigue characteristics of each position of the spring body, thus affecting the reliability of the detection results and the durability of the spring. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is not convenient to change the detection position in real time, so as to facilitate the analysis of the axial and torsional fatigue characteristics of each position of the spring, which affects the reliability of the detection results and the durability of the spring, and to propose a test device for spring performance detection.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solution:

[0006] A test device for spring performance detection, including an annular base, a surrounding tooth groove is opened at the top of the annular base, a follower gear is meshed on the surface of the surrounding tooth groove, the center of the follower gear is connected to the annular base through a driving component, a vertical rod component is arranged at the top of the driving component, a following component is arranged on the side of the vertical rod component, an auxiliary fitting component is inserted into the inner wall of the following component, a locking column is fixed at the top of the auxiliary fitting component, the number of the locking columns is two, and the two locking columns are symmetrically arranged with the center of the auxiliary fitting component as the center, the top of the locking column is threadedly connected with a limiting component, a spring body fitting arm is sleeved on the bottom side of the locking column, the inside of the spring body fitting arm is connected to the locking column through a pressing component, one end of the spring body fitting arm is hinged with a mounting plate through a shaft, an arc groove is opened at the top of one end of the mounting plate, a fan-shaped movable arm arranged in a matching manner is inserted into the inner wall of the arc groove, a plugging groove is opened at one end of the fan-shaped movable arm, a spring body clamping plate is inserted into the inner wall of the plugging groove, a reset spring is fixed between the surface of the spring body clamping plate and the inner bottom wall of the plugging groove, and a torsional detection component is arranged on the inner wall of the fan-shaped movable arm.

[0007] Preferably, the driving assembly includes a surrounding groove formed in the center of the annular base around the side surface of the ring. The inner wall of the surrounding groove is inserted with a surrounding disc. The upper surface of the surrounding disc is fixed with a motor base. The inner wall of the motor base is fixed with a servo driving motor. The output end of the servo driving motor is fixed to the side surface of the follower gear.

[0008] Preferably, the vertical rod assembly includes a bracket fixed to the top of the surrounding disc. The top of the bracket is fixed with a vertical rod. The inner wall of the sinking groove formed on the side surface of the vertical rod is fixed with a vertical detection body.

[0009] Preferably, the following assembly includes a following sleeve sleeved on the outside of the vertical rod. The outside of the following sleeve is fixed with a horizontal shaft tube arm.

[0010] Preferably, the auxiliary fitting assembly includes a damping connection ring inserted into the inner wall of the horizontal shaft tube arm. The inner wall of the damping connection ring is inserted with a piston rod. A fan-shaped identification groove is formed on the upper surface of one end of the piston rod. One end of the inner wall of the damping connection ring is fixed with a rotation detection head body, and one end of the rotation detection head body is located inside the fan-shaped identification groove. The other end of the piston rod is fixed with a double-end carrier. The bottom ends of the two locking columns are fixed to the surface of the double-end carrier.

[0011] Preferably, the limiting assembly includes a locking knob threadedly connected to the top end of the locking column. The lower surface of the locking knob is closely attached to the upper surface of the spring body fitting arm.

[0012] Preferably, the pressing assembly includes a pressing coil spring fixed inside the spring body fitting arm. The central end of the pressing coil spring is inserted into the inner wall of the engaging groove formed on the side surface of the locking column.

[0013] Preferably, the torsion detection assembly includes an arc plate fixed to the inner wall of the fan body movable arm and a torsion detection head body fixed to one end of the mounting plate. The arc plate and the torsion detection head body are installed on the same axis.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Through the combined setting of the arc groove and the fan body movable arm, the fan body movable arm is clamped on the side surface of the spring coil by the spring body clamping plate inside. When the spring compresses and twists the coil under the action of the testing machine, it can drive the fan body movable arm to deflect with the spring body clamping plate as the axis. Thus, the torsional fatigue of the spring coil is detected by the deflection angle of the torsion detection head body on the arc plate. The response and recovery performance of the spring can be reflected by the torsional deviation of the spring coil, thereby improving the reliability of spring fatigue detection and the durability of the spring.

[0016] 2. Through the arrangement of the surrounding tooth groove and the follower gear, the follower gear rotates along the surrounding tooth groove driven by the servo drive motor, thereby being able to drive the spring body clamping plate to shift along the spring coil, so that it can shift in real time during the dynamic detection of the spring, detect different positions of the spring body, and improve the reliability of the spring detection result and the durability of the spring.

[0017] 3. Through the combined arrangement of the piston rod and the damping connection ring, when the spring is repeatedly compressed on the testing machine, it can drive the piston rod to rotate through the spring body clamping plates arranged at both ends of the double-end bearing frame, thereby being able to assist in detecting the response and recovery performance of the spring, so as to improve the reliability of the detection result of the detection equipment and the durability of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a testing device for spring performance detection proposed by the present invention;

[0019] Figure 2 is an exploded structural diagram of the driving component of a testing device for spring performance detection proposed by the present invention;

[0020] Figure 3 is an exploded structural diagram of the auxiliary fitting component of a testing device for spring performance detection proposed by the present invention;

[0021] Figure 4 is a schematic cross-sectional structural diagram of the piston rod of a testing device for spring performance detection proposed by the present invention;

[0022] Figure 5 For the present invention Figure 4 is an enlarged structural diagram of the A position in

[0023] Figure 6 is an exploded structural diagram of the fan-shaped movable arm of a testing device for spring performance detection proposed by the present invention;

[0024] Figure 7 is a schematic cross-sectional structural diagram of a testing device for spring performance detection proposed by the present invention.

[0025] In the figure: 1, annular base; 2, surrounding tooth groove; 3, follower gear; 4, locking post; 5, spring body fitting arm; 6, mounting plate; 7, arc groove; 8, fan-shaped movable arm; 9, insertion slot; 10, spring body clamping plate; 11, return spring; 12, surrounding groove; 13, surrounding disc; 14, motor base; 15, servo drive motor; 16, bracket; 17, vertical rod; 18, vertical detection body; 19, following sleeve; 20, horizontal shaft barrel arm; 21, damping connection ring; 22, piston rod; 23, fan-shaped identification groove; 24, rotation detection head body; 25, double-end carrier; 26, locking knob; 27, pressure coil spring; 28, arc plate; 29, torsion detection head body. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounting", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Example, refer to Figures 1 to 7, A test device for spring performance detection, including an annular base 1. A surrounding tooth groove 2 is provided at the top of the annular base 1. A follower gear 3 is meshed and connected to the surface of the surrounding tooth groove 2. The axis of the follower gear 3 is connected to the annular base 1 through a driving component. Further, the driving component includes a surrounding groove 12 opened on the side surface of the surrounding ring at the center of the annular base 1. An insertion block 13 is inserted into the inner wall of the surrounding groove 12. A motor base 14 is fixed on the upper surface of the insertion block 13. A servo drive motor 15 is fixed on the inner wall of the motor base 14. The output end of the servo drive motor 15 is fixed to the side surface of the follower gear 3.

[0030] The advantage of the above further is that when the servo drive motor 15 works, the output end can drive the follower gear 3 to rotate in the surrounding tooth groove 2 of the annular base 1, thereby driving the insertion block 13 connected to the servo drive motor 15 to rotate on the top of the annular base 1, and further driving the vertical rod 17 to move to change the position where the spring body clamping plate 10 clamps on the spring coil, and detecting the response speed and recovery of each part of the spring body.

[0031] A vertical rod component is provided at the top of the driving component. Further, the vertical rod component includes a bracket 16 fixed to the top of the insertion block 13. A vertical rod 17 is fixed to the top of the bracket 16. A vertical detection body 18 is fixed to the inner wall of the sinking groove opened on the side surface of the vertical rod 17.

[0032] The advantage of the above further is that the vertical rod 17 can drive the spring body clamping plate 10 to rotate through the servo drive motor 15 to change the detection position, and can also make the following sleeve 19 move up and down with the spring coil clamped by the spring body clamping plate 10 when the testing machine continuously compresses the spring for fatigue testing.

[0033] A following component is provided on the side surface of the vertical rod component. Further, the following component includes a following sleeve 19 sleeved on the outer side of the vertical rod 17. A horizontal shaft tube arm 20 is fixed to the outer side of the following sleeve 19.

[0034] The advantage of the above further is that the following sleeve 19 moves up and down with the spring coil clamped by the spring body clamping plate 10, which can prompt the vertical detection body 18 on the side surface of the vertical rod 17 to record the height of each downward movement and recovery of the spring coil clamped by the spring body clamping plate 10, so as to cooperate with detecting the recovery of the spring coil at this place.

[0035] An auxiliary fitting component is inserted into the inner wall of the following component. Further, the auxiliary fitting component includes a damping connection ring 21 inserted into the inner wall of the horizontal shaft barrel arm 20. A piston rod 22 is inserted into the inner wall of the damping connection ring 21. A sector-shaped identification groove 23 is formed on the upper surface of one end of the piston rod 22. One end of the inner wall of the damping connection ring 21 is fixed with a rotary detection head body 24, and one end of the rotary detection head body 24 is located inside the sector-shaped identification groove 23. The other end of the piston rod 22 is fixed with a double-end carrier 25. The bottom ends of the two locking columns 4 are fixed on the surface of the double-end carrier 25.

[0036] The advantage of the above is as follows: Moving the double-end carrier 25 can drive the connected damping connection ring 21 to change the insertion length in the horizontal shaft barrel arm 20, so that the spring body clamping plate 10 can adapt to the detection of spring bodies with different shaft diameters. When the spring body is compressed and restored by the testing machine, the piston rod 22 will deflect following the double-end carrier 25. The double-end carrier 25 deflects because the two spring body clamping plates 10 are clamped on the spring coils at different positions. The spring compression can cause the double-end carrier 25 to deflect, and then enable the rotary detection head body 24 to detect the resilience and durability of the spring according to the deflection angle of the sector-shaped identification groove 23.

[0037] The top of the auxiliary fitting component is fixed with two locking columns 4, and the two locking columns 4 are symmetrically arranged with the axis of the auxiliary fitting component as the center. The top end of the locking column 4 is threadedly connected with a limiting component. Further, the limiting component includes a locking knob 26 threadedly connected to the top end of the locking column 4, and the lower surface of the locking knob 26 is closely attached to the upper surface of the spring body fitting arm 5.

[0038] The advantage of the above is as follows: The locking knob 26 can play a limiting role on the spring body fitting arm 5, facilitating the disassembly of the spring body fitting arm 5 to detect springs with different shaft diameters.

[0039] The bottom side of the locking column 4 is sleeved with a spring body fitting arm 5, and the inside of the spring body fitting arm 5 is connected to the locking column 4 through a pressure application component. Further, the pressure application component includes a pressure application coil spring 27 fixed inside the spring body fitting arm 5, and the central end of the pressure application coil spring 27 is inserted into the inner wall of the clamping groove formed on the side of the locking column 4.

[0040] The advantage of the above is as follows: The pressure application coil spring 27 can drive the spring body fitting arm 5 to rotate, so that the spring body clamping plate 10 can always be in contact with the spring coil during displacement, ensuring the reliability of the test results of the testing equipment.

[0041] One end of the spring body fitting arm 5 is hinged with a mounting plate 6 through a shaft. An arc-shaped groove 7 is formed at the top of one end of the mounting plate 6. A fan-shaped movable arm 8 arranged in a matching manner is inserted into the inner wall of the arc-shaped groove 7. A plug-in groove 9 is formed at one end of the fan-shaped movable arm 8. A spring body clamping plate 10 is inserted into the inner wall of the plug-in groove 9. A return spring 11 is fixed between the surface of the spring body clamping plate 10 and the inner bottom wall of the plug-in groove 9. A torsion detection component is arranged on the inner wall of the fan-shaped movable arm 8. Further, the torsion detection component includes an arc-shaped plate 28 fixed to the inner wall of the fan-shaped movable arm 8 and a torsion detection head body 29 fixed to one end of the mounting plate 6. The arc-shaped plate 28 and the torsion detection head body 29 are installed on the same axis.

[0042] The advantage of the above further is that when the spring coil is compressed and twisted, the recovery and durability of the spring coil at this place are reflected by the deviation angle error between the torsion detection head body 29 and the arc-shaped plate 28.

[0043] When the present invention is used, the annular base 1 is fixed outside the test machine base, and the double-end bearing frame 25 is moved so that the spring body clamping plate 10 clamps the outside of the spring coil of the cylindrical helical spring;

[0044] When the test machine compresses the spring, the recovery and durability of the spring coil at this place are comprehensively judged by the angle error of the torsion of the fan-shaped movable arm 8 on the inner wall of the arc-shaped groove 7 and the rotation error of the piston rod 22;

[0045] When the spring is compressed by the test machine, the follower sleeve 19 will slide up and down along the vertical rod 17. The vertical detection body 18 detects the deviation of the follower sleeve 19 moving down each time to further judge the recovery and durability of the spring at this place;

[0046] When it is necessary to detect other positions of the spring, the servo drive motor 15 drives the follower gear 3 at one end to rotate along the surrounding tooth groove 2. The servo drive motor 15 is fixed on the motor base 14 on the upper surface of the surrounding disk 13. Therefore, the vertical rod 17 at the top of the surrounding disk 13 can drive the double-end bearing frame 25 to rotate around the axis of the annular base 1, and then the spring body clamping plate 10 installed on the double-end bearing frame 25 can be driven to clamp on the spring coil and move along the advancing direction of the spring coil, so as to facilitate detecting the performance of the spring coil at different positions.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A testing device for spring performance detection, comprising an annular base (1), characterized in that: The top of the annular base (1) is provided with a surrounding tooth groove (2), and a follower gear (3) is meshed and connected to the surface of the surrounding tooth groove (2). The axis of the follower gear (3) is connected to the annular base (1) through a driving assembly. A vertical rod assembly is arranged at the top of the driving assembly, a following assembly is arranged on the side of the vertical rod assembly, an auxiliary fitting assembly is inserted into the inner wall of the following assembly, a locking column (4) is fixed to the top of the auxiliary fitting assembly. The number of the locking columns (4) is two, and the two locking columns (4) are symmetrically arranged with the axis of the auxiliary fitting assembly as the center. The top end of the locking column (4) is threadedly connected with a limiting assembly, a spring body fitting arm (5) is sleeved on the bottom side of the locking column (4), and the inside of the spring body fitting arm (5) is connected to the locking column (4) through a pressing assembly. One end of the spring body fitting arm (5) is hinged to a mounting plate (6) through a shaft. An arc groove (7) is opened at the top of one end of the mounting plate (6), a fan-shaped movable arm (8) arranged in a matching way is inserted into the inner wall of the arc groove (7), a plugging groove (9) is opened at one end of the fan-shaped movable arm (8), a spring body clamping plate (10) is inserted into the inner wall of the plugging groove (9), and a return spring (11) is fixed between the surface of the spring body clamping plate (10) and the inner bottom wall of the plugging groove (9). A torsion detection assembly is arranged on the inner wall of the fan-shaped movable arm (8). The driving assembly includes a surrounding groove (12) opened on the side surface of the surrounding ring at the center of the annular base (1), a surrounding disc (13) is inserted into the inner wall of the surrounding groove (12), a motor base (14) is fixed to the upper surface of the surrounding disc (13), a servo driving motor (15) is fixed to the inner wall of the motor base (14), and the output end of the servo driving motor (15) is fixed to the side surface of the follower gear (3). The vertical rod assembly includes a bracket (16) fixed to the top of the surrounding disc (13), a vertical rod (17) is fixed to the top of the bracket (16), and a vertical detection body (18) is fixed to the inner wall of the sinking groove opened on the side surface of the vertical rod (17). The following assembly includes a following sleeve (19) sleeved on the outer side of the vertical rod (17), a transverse shaft tube arm (20) is fixed to the outer side of the following sleeve (19). The auxiliary fitting assembly includes a damping connection ring (21) inserted into the inner wall of the transverse shaft tube arm (20), a piston rod (22) is inserted into the inner wall of the damping connection ring (21), a fan-shaped identification groove (23) is opened on the upper surface of one end of the piston rod (22), a rotation detection head body (24) is fixed to the inner wall of one end of the damping connection ring (21), and one end of the rotation detection head body (24) is located inside the fan-shaped identification groove (23). The other end of the piston rod (22) is fixed to a double-end bearing frame (25), and the bottom ends of the two locking columns (4) are fixed to the surface of the double-end bearing frame (25). The torsion detection assembly includes an arc plate (28) fixed to the inner wall of the fan-shaped movable arm (8) and a torsion detection head body (29) fixed to one end of the mounting plate (6).The arc-shaped plate (28) and the torsion detection head body (29) are installed on the same axis., 2. The testing device for spring performance detection according to claim 1, characterized in that, The limiting component includes a locking knob (26) threadedly connected to the top end of the locking column (4), and the lower surface of the locking knob (26) is closely attached to the upper surface of the spring body fitting arm (5).

3. The testing device for spring performance detection according to claim 1, characterized in that, The pressing component includes a pressing coil spring (27) fixed inside the spring body fitting arm (5), and the central end of the pressing coil spring (27) is inserted into the inner wall of the engaging groove formed on the side surface of the locking column (4).

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