Test equipment for spring performance detection

Abstract

The invention discloses test equipment for spring performance detection, and belongs to the field of spring detection devices.The test equipment comprises an annular base, a surrounding tooth groove is formed in the top of the annular base, a follow-up gear is connected to the surface of the surrounding tooth groove in a meshed mode, and the axis of the follow-up gear is connected with the annular base through a driving assembly; a vertical rod assembly is arranged on the top of the driving assembly. Through combined arrangement of the arc-shaped groove and the fan body movable arm, the fan body movable arm is clamped on the side face of a spring coil through the spring body clamping plate in the fan body movable arm, and when a spring compresses the spring coil to twist under the action of a testing machine, the fan body movable arm can be driven to deflect with the spring body clamping plate as the axis; therefore, the torsion fatigue of the spring coil can be detected through the deflection angle of the torsion detection head body on the arc-shaped plate, and the response and recovery performance of the spring can be reflected through the torsion deviation of the spring coil, so that the reliability of spring fatigue detection and the durability of the spring are improved.

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 springs usually refers to the performance of springs under periodic loads or alternating stresses. Spring performance detection is usually carried out with the assistance of instruments such as servo hydraulic testing machines or vibration tables for tests such as fatigue life, damping characteristics, frequency phase, and amplitude dependence.

[0003] Existing detection devices cannot change the detection position in real time when dynamically detecting the fatigue degree of springs, 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 springs. 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 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] To achieve the above purpose, the present invention adopts the following technical scheme: A test device for spring performance detection, including an annular base. A circumferential tooth groove is opened at the top of the annular base. A follower gear is meshed and connected to the surface of the circumferential 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 to 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 end 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 to 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. A torsional detection component is arranged on the inner wall of the fan-shaped movable arm.

[0006] Preferably, the driving assembly includes a surrounding groove formed in the center of the annular base around the side surface of the ring, an inner wall of the surrounding groove is inserted with a surrounding disk, an upper surface of the surrounding disk is fixed with a motor base, an inner wall of the motor base is fixed with a servo driving motor, and an output end of the servo driving motor is fixed to a side surface of a follower gear.

[0007] Preferably, the vertical rod assembly includes a bracket fixed to the top of the surrounding disk, a vertical rod is fixed to the top of the bracket, and a vertical detection body is fixed to an inner wall of a sunk groove formed in a side surface of the vertical rod.

[0008] Preferably, the following assembly includes a following sleeve sleeved outside the vertical rod, and a horizontal axis barrel arm is fixed to an outside of the following sleeve.

[0009] Preferably, the auxiliary fitting assembly includes a damping connection ring inserted into an inner wall of the horizontal axis barrel arm, a piston rod is inserted into an inner wall of the damping connection ring, a sector-shaped identification groove is formed in an upper surface of one end of the piston rod, a rotation detection head body is fixed to an inner wall of one end of the damping connection ring, and one end of the rotation detection head body is located inside the sector-shaped identification groove. The other end of the piston rod is fixed with a double-end bearing frame, and bottoms of the two locking columns are fixed to a surface of the double-end bearing frame.

[0010] Preferably, the limiting assembly includes a locking knob threadedly connected to a top end of the locking column, and a lower surface of the locking knob is closely attached to an upper surface of the spring body fitting arm.

[0011] Preferably, the pressing assembly includes a pressing coil spring fixed inside the spring body fitting arm, and a central end of the pressing coil spring is inserted into an inner wall of a clamping groove formed in a side surface of the locking column.

[0012] Preferably, the torsion detection assembly includes an arc plate fixed to an inner wall of the sector body movable arm and a torsion detection head body fixed to one end of the mounting plate, and the arc plate and the torsion detection head body are installed on the same axis.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the combined setting of the arc groove and the sector body movable arm, the sector 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 the coil twists under the action of the testing machine, it can drive the sector body 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 torsion detection head body on the arc plate. The torsional deviation of the spring coil can reflect the response and recovery performance of the spring, thereby improving the reliability of spring fatigue detection and the durability of the spring.

[0014] 2. Through the provision 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 driving the spring body clamping plate to displace along the spring coil, enabling real-time displacement during the dynamic detection of the spring, detecting different positions of the spring body, and improving the reliability of the spring detection result and the durability of the spring.

[0015] 3. Through the combined provision of the piston rod and the damping connection ring, when the spring is repeatedly compressed on the testing machine, the piston rod can be driven to rotate by the spring body clamping plates provided at both ends of the double-end bearing frame, thereby assisting in detecting the response and recovery performance of the spring, facilitating the improvement of the reliability of the detection result of the detection equipment and the durability of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a testing device for spring performance detection proposed by the present invention; Figure 2 is an exploded structural diagram of the driving component of a testing device for spring performance detection proposed by the present invention; 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; 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; Figure 5 For the present invention Figure 4 is an enlarged structural diagram at position A in; 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; Figure 7 is a schematic cross-sectional structural diagram of a testing device for spring performance detection proposed by the present invention.

[0017] In the figure: 1, annular base; 2, surrounding tooth groove; 3, follower gear; 4, locking column; 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 axis barrel arm; 21, damping connection ring; 22, piston rod; 23, fan-shaped identification groove; 24, rotation detection head body; 25, double-end bearing frame; 26, locking knob; 27, pressing coil spring; 28, arc plate; 29, torsion detection head body. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0019] 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 accompanying drawings. It 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 therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / 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 communication inside 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.

[0021] 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 opened 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 surrounding side surface at the center of the annular base 1. A surrounding disk 13 is inserted into the inner wall of the surrounding groove 12. A motor seat 14 is fixed on the upper surface of the surrounding disk 13. A servo drive motor 15 is fixed on the inner wall of the motor seat 14. The output end of the servo drive motor 15 is fixed to the side surface of the follower gear 3.

[0022] 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 surrounding disk 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.

[0023] A vertical rod assembly is provided at the top of the driving assembly. Further, the vertical rod assembly includes a bracket 16 fixed to the top of the surrounding disk 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 sunk groove formed on the side of the vertical rod 17.

[0024] The advantages of the above are as follows: Firstly, 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. Secondly, when the testing machine continuously compresses the spring for fatigue testing, the following sleeve 19 can move up and down along with the spring coil clamped by the spring body clamping plate 10.

[0025] A following assembly is provided on the side of the vertical rod assembly. Further, the following assembly includes a following sleeve 19 sleeved on the outside of the vertical rod 17. A horizontal axis barrel arm 20 is fixed to the outside of the following sleeve 19.

[0026] The advantages of the above are as follows: The following sleeve 19 moves up and down along with the spring coil clamped by the spring body clamping plate 10, which can prompt the vertical detection body 18 on the side 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.

[0027] An auxiliary fitting assembly is inserted into the inner wall of the following assembly. Further, the auxiliary fitting assembly includes a damping connection ring 21 inserted into the inner wall of the horizontal axis 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. A rotary detection head body 24 is fixed to the inner wall of one end of the damping connection ring 21, and one end of the rotary detection head body 24 is located inside the sector-shaped identification groove 23. A double-end bearing frame 25 is fixed to the other end of the piston rod 22. The bottom ends of the two locking columns 4 are fixed to the surface of the double-end bearing frame 25.

[0028] The advantages of the above are as follows: Moving the double-end bearing frame 25 can drive the connected damping connection ring 21 to change the inserted length in the horizontal axis barrel arm 20, so that the spring body clamping plate 10 can adapt to the detection of spring bodies with different diameters. When the spring body is compressed and restored by the testing machine, the piston rod 22 will deflect along with the double-end bearing frame 25. The double-end bearing frame 25 deflects because the two spring body clamping plates 10 clamp the spring coils at different positions. The spring compression can prompt the double-end bearing frame 25 to deflect, and further enable the rotary detection head body 24 to detect the recovery and durability of the spring according to the deflection angle of the sector-shaped identification groove 23.

[0029] The top of the auxiliary fitting component is fixed with locking columns 4. There are two locking columns 4, and the two locking columns 4 are symmetrically arranged around the axis of the auxiliary fitting component. The top 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 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.

[0030] The advantage of the above further is that: the locking knob 26 can play a limiting role on the spring body fitting arm 5, which is convenient for disassembling the spring body fitting arm 5 to detect springs with different shaft diameters.

[0031] The bottom side of the locking column 4 is sleeved with a spring body fitting arm 5. The inside of the spring body fitting arm 5 is connected to the locking column 4 through a pressing component. Further, 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 opened on the side of the locking column 4.

[0032] The advantage of the above further is that: the pressing 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, to ensure the reliability of the test results of the test equipment.

[0033] 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 opened at the top of one end of the mounting plate 6. A fan-shaped movable arm 8 provided in a matching manner is inserted into the inner wall of the arc-shaped 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. 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 component is provided on the inner wall of the fan-shaped movable arm 8. Further, the torsion detection component includes an arc-shaped plate 28 fixed on the inner wall of the fan-shaped movable arm 8 and a torsion detection head body 29 fixed at 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.

[0034] 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.

[0035] 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 to clamp the spring body clamping plate 10 outside the spring coil of the cylindrical helical spring; 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 rotation 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; When the spring is compressed by the testing machine, the follower sleeve 19 will slide up and down along the vertical rod 17, and the vertical detection body 18 is used to detect the deviation of the follower sleeve 19 moving downward each time, so as to further judge the resilience and durability of the spring at this place; 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 seat 14 on the upper surface of the surrounding disc 13. Therefore, the vertical rod 17 at the top of the surrounding disc 13 can drive the double-end carrier 25 to rotate around the axis of the annular base 1, and then the spring body clamping plate 10 installed on the double-end carrier 25 can be clamped on the spring coil and move along the advancing direction of the spring coil, so as to facilitate the detection of the performance of the spring coil at different positions.

[0036] 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 of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A testing device for testing spring performance, comprising an annular base (1), characterized in that: The top of the annular base (1) is provided with a surrounding tooth groove (2), the surface of the surrounding tooth groove (2) is meshingly connected with a follower gear (3), the axis of the follower gear (3) is connected to the annular base (1) through a driving component, the top of the driving component is provided with a hanging rod component, the side of the hanging rod component is provided with a follower component, the inner wall of the follower component is plugged with an auxiliary fitting component, the top of the auxiliary fitting component is fixed with a locking column (4), 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 component as the center, the top of the locking column (4) is threadedly connected to the limit assembly, and the bottom side of the locking column (4) is connected to the limit assembly. A spring body fitting arm (5) is sleeved, the interior of the spring body fitting arm (5) is connected to the locking column (4) through a pressure component, one end of the spring body fitting arm (5) is hinged to a mounting plate (6) through an axis, an arc groove (7) is provided at the top of one end of the mounting plate (6), a matching fan body movable arm (8) is inserted into the inner wall of the arc groove (7), one end of the fan body movable arm (8) is provided with a plug-in groove (9), 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), and a torsion detection component is provided on the inner wall of the fan body movable arm (8).

2. A test device for spring performance testing according to claim 1, characterized in that: The driving assembly comprises a surrounding groove (12) formed on the side surface of a central surrounding ring of the annular base (1); a surrounding disk (13) is inserted into the inner wall of the surrounding groove (12); a motor seat (14) is fixed to the upper surface of the surrounding disk (13); a servo drive motor (15) is fixed to the inner wall of the motor seat (14); and an output end of the servo drive motor (15) is fixed to the side surface of the follower gear (3).

3. A test device for spring performance detection according to claim 2, characterized in that: The vertical rod assembly comprises a bracket (16) fixed to the top of the surrounding disk (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 a sink groove opened on the side of the vertical rod (17).

4. A testing device for spring performance testing according to claim 3, characterized in that: The following component comprises a following sleeve (19) sleeved on the outside of the vertical rod (17), and a transverse axis sleeve arm (20) is fixed on the outside of the following sleeve (19).

5. A testing device for spring performance testing according to claim 4, characterized in that: The auxiliary fitting component comprises a damping connection ring (21) plugged into the inner wall of the transverse axis cylinder arm (20), a piston rod (22) being plugged into the inner wall of the damping connection ring (21), a fan-shaped identification groove (23) being provided on the upper surface of one end of the piston rod (22), a rotating detection head body (24) being fixed to the inner wall of one end of the damping connection ring (21), and one end of the rotating detection head body (24) being located inside the fan-shaped identification groove (23), a double-end bearing frame (25) being fixed to the other end of the piston rod (22), and the bottom ends of the two locking columns (4) being fixed to the surface of the double-end bearing frame (25).

6. A testing device for spring performance testing according to claim 1, characterized in that: The limiting assembly comprises 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 tightly fitted to the upper surface of the spring body fitting arm (5).

7. A testing device for spring performance testing according to claim 1, characterized in that: The pressure component comprises a pressure coil spring (27) fixed inside the spring body fitting arm (5), and the central end of the pressure coil spring (27) is inserted into the inner wall of a locking groove opened on the side of the locking column (4).

8. A testing device for spring performance testing according to claim 1, characterized in that: The torsion detection assembly comprises an arc-shaped plate (28) fixed to the inner wall of the fan body 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 mounted on the same axis.

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