Modularized automaton spring mechanical property analyzer

Abstract

The invention relates to the technical field of spring testing, in particular to a modular automaton spring mechanical property analyzer which comprises a shell, a fixed seat, a sliding seat, a plurality of positioning assemblies and a plurality of clamping assemblies. The sliding seat is installed in the shell, the fixed seat is installed in the shell and located below the sliding seat, the positioning assembly comprises a positioning rod, the clamping assembly comprises a clamping rod and a plurality of synchronous rings, and the positioning rod and the clamping rod can move towards the side close to or away from a spring to be tested. The multiple synchronous rings are arranged on the clamping rod in a sleeving mode and are made of rubber materials. According to the modular automaton spring mechanical property analyzer, the synchronous ring abuts against the coil of the to-be-tested spring aligned with the synchronous ring in the vertical direction, so that the to-be-tested spring can be limited in the whole testing process; and the synchronous ring and the to-be-tested spring are synchronously moved up and down, so that the abrasion degree of the to-be-tested spring in a long-term fatigue test is reduced, and the accuracy and reliability of a detection result are improved.

Description

Technical Field

[0001] This invention relates to the field of spring testing technology, and more specifically to a modular automatic spring mechanical property analyzer. Background Technology

[0002] Modular automatic machine springs are the product of the deep integration of modular design concept and spring technology. As the core elastic element system of automated equipment or mechanism, they have significant advantages such as modularity, reconfigurability, easy maintenance and high adaptability. They can effectively solve the pain points of high degree of customization, difficult replacement and poor adaptability in traditional spring applications, and are widely used in high-end manufacturing fields such as industrial automation, robotics and precision instruments.

[0003] During spring production, fatigue performance testing using specialized mechanical property analyzers is necessary to ensure product quality meets application requirements. Existing mechanical property analyzers simulate the spring's stress state under actual working conditions, using a drive mechanism to periodically compress the spring with a loading component, subjecting it to alternating loads. Key parameters such as deformation and elastic force attenuation are recorded after a set number of cycles to determine if the spring meets fatigue failure criteria and assess its fatigue life and mechanical performance stability. However, when testing springs in modular automated machines, the middle section of the spring bends under pressure, preventing complete spring testing. To address this bending issue, existing technology uses internal support components to limit the spring's movement during compression. However, during the reciprocating compression and rebound process, continuous sliding friction occurs between the outer surface of the support component and the inner wall of the spring. This leads to excessive wear during elastic fatigue testing, resulting in inaccurate mechanical performance measurements. Summary of the Invention

[0004] This invention provides a modular automatic spring mechanical property analyzer to solve the problem that existing mechanical property analyzers, during the reciprocating compression and rebound process of the spring, will generate continuous sliding friction between the outer surface of the support component and the inner wall of the spring, causing excessive wear of the spring itself and resulting in inaccurate detection of its mechanical properties.

[0005] The present invention discloses a modular automatic spring mechanical property analyzer, comprising a housing, a fixed base, a sliding base, a detection system, multiple positioning components, and multiple clamping components. The sliding base is movably mounted within the housing, and the fixed base is fixedly mounted within the housing and located below the sliding base. A spring to be tested, arranged vertically, is placed on the fixed base. The sliding base can move downwards to contact the spring to be tested. Multiple positioning components and multiple clamping components are sequentially arranged and alternately distributed around the vertical central axis of the sliding base between the sliding base and the fixed base. Each positioning component includes a positioning rod, and each clamping component includes a clamping rod and multiple synchronizing rings. Both the positioning rod and the clamping rod are arranged vertically. The spring to be tested is located within multiple... The positioning rod and multiple clamping rods are located inside the spring under test. Both the positioning rod and clamping rods can move towards or away from the spring under test. Multiple synchronizing rings, made of rubber, are fitted onto the clamping rods and can slide on the clamping rods, aligning the synchronizing rings with one of the coils of the spring under test vertically. The modular automatic spring mechanical property analyzer has a first state and a second state. In the first state, multiple positioning rods abut against the spring under test, and a gap is maintained between the multiple clamping rods and the spring under test. In the second state, a gap is maintained between the multiple positioning rods and the spring under test, and a synchronizing ring on each clamping rod abuts against the coil of the spring under test aligned vertically with it. The detection system is installed inside the housing and is used to detect the mechanical parameters of the spring under test.

[0006] Furthermore, the upper end of the positioning rod is slidably mounted on the sliding seat via a first sliding block. The sliding seat and the first sliding block are keyway-fitted, and a first elastic element is provided between them. The fixed seat has multiple first sliding grooves, which are arranged horizontally and correspond one-to-one with the positioning rod. Each first sliding groove is connected to a second sliding block via a second elastic element, and the positioning rod is slidably fitted with the second sliding block. The upper end of the clamping rod is slidably mounted on the sliding seat via a third sliding block. The sliding seat and the third sliding block are keyway-fitted, and a third elastic element is provided between them. The fixed seat has multiple second sliding grooves, which are arranged horizontally and correspond one-to-one with the clamping rod. Each second sliding groove is connected to a fourth sliding block via a fourth elastic element, and the clamping rod is slidably fitted with the fourth sliding block.

[0007] Furthermore, a rotating disk is coaxially and rotatably arranged below the fixed base. The rotating disk has multiple first sliding grooves and multiple second sliding grooves. The first sliding grooves are arranged one-to-one with each other, and the positioning rod can pass through the second sliding block and the first sliding groove in sequence. The second sliding grooves are arranged one-to-one with each other, and the clamping rod can pass through the fourth sliding block and the second sliding groove in sequence. When the rotating disk rotates clockwise, the positioning rod can move towards the side closer to the spring to be tested, and the clamping rod can move away from the side of the spring to be tested. When the rotating disk rotates counterclockwise, the clamping rod can move towards the side closer to the spring to be tested, and the positioning rod can move away from the side of the spring to be tested.

[0008] Further, the first sliding groove includes a first inclined groove and a first circumferential groove. The first inclined groove is inclined relative to the radial direction of the rotating disk, and the first circumferential groove is coaxial with the rotating disk. The first inclined groove and the first circumferential groove are arranged sequentially and interconnected in the forward rotation direction of the rotating disk. In the forward rotation direction of the rotating disk, the first inclined groove is located behind the first circumferential groove. In the initial state, the positioning rod is located at the connection between the first inclined groove and the first circumferential groove. The second sliding groove includes a second inclined groove and a second circumferential groove. The second inclined groove is inclined relative to the radial direction of the rotating disk, and the second circumferential groove is coaxial with the rotating disk. The second inclined groove and the second circumferential groove are arranged sequentially and interconnected in the forward rotation direction of the rotating disk. In the forward rotation direction of the rotating disk, the second inclined groove is located in front of the second circumferential groove. In the initial state, the clamping rod is located at the connection between the second inclined groove and the second circumferential groove.

[0009] Furthermore, there are three positioning components and three clamping components.

[0010] Furthermore, a telescopic rod is provided between the third and fourth sliding blocks, and a center block is sleeved on the telescopic rod. The upper and lower ends of the center block abut against the third and fourth sliding blocks respectively through a fifth elastic element. The clamping rod is hollow inside, and a central rod is coaxially and rotatably arranged inside each clamping rod. An adjusting rod is coaxially arranged on the central rod, and the adjusting rod is located between the central rod and the clamping rod and is engaged with the keyway of the central rod. The adjusting rod includes a first rod segment and a second rod segment. The first rod segment is located above the second rod segment and is fixedly connected to the second rod segment. Both the first rod segment and the second rod segment are helical rods. They are of the same length; both the first and second rod segments are screwed with magnetic rings, and the magnetic rings cooperate with the keyways on the inner wall of the clamping rod; the magnetic rings and the synchronizing rings are set in a one-to-one correspondence, and the magnetic rings can attract each other and move synchronously with the corresponding synchronizing rings; in the initial state, the distances from the two magnetic rings to the connection point of the first and second rod segments are the same; the three clamping components are divided into one first component and two second components; in the adjusting rod of the first component, the pitch of the first rod segment is the same as that of the second rod segment, and in the adjusting rod of the second component, the pitch of the first rod segment is different from that of the second rod segment.

[0011] Furthermore, two positioning rings are connected to the center block of the first component, and a clamping ring is provided between the two positioning rings. The clamping ring and the two positioning rings are both sleeved on the clamping rod of the first component. In the initial state, the clamping ring is located at the connection between the first rod segment and the second rod segment, and the structure of the clamping ring is the same as the structure of the synchronization ring. A collar is connected to the center block of the second component, and the collar is sleeved on the clamping rod of the second component.

[0012] Furthermore, the spring under test is configured to rotate about its own axis.

[0013] Furthermore, a rotating block is rotatably mounted on the fixed base, and a transmission component is mounted on the rotating block. The transmission component includes a first gear and a first rack. The first gear is arranged in the vertical direction and rotates with the rotating block. The first rack is slidably mounted on the rotating block and meshes with the first gear. The first rack can abut against the lower end of the spring to be tested.

[0014] Furthermore, the positioning rod includes a main rod, a rotating rod, and a driven member. The main rod is arranged vertically, and the rotating rod is coaxial with and rotatably engaged with the main rod. The surface of the rotating rod is rough, and its vertical dimension is larger than the pitch of the spring to be measured. The driven member is located above the rotating rod, coaxial with and rotatably engaged with the main rod. The surface of the driven member is rough, and its vertical dimension is smaller than the pitch of the spring to be measured. Both the rotating rod and the driven member are equipped with encoders. The encoders are electrically connected to the detection system. The encoder on the rotating rod is used to detect the number of rotations, and the encoder on the driven member is used to detect the number of rotations of the driven member.

[0015] The beneficial effects of this invention are as follows: The modular automatic spring mechanical property analyzer of this invention, through the cooperation of a housing, a fixed base, a sliding base, multiple positioning components, and multiple clamping components, positions the spring under test using a first clamping rod in its first state. This improves the stability of the spring and ensures the alignment of the synchronizing ring with the coil of the spring under test. Furthermore, multiple synchronizing rings can slide along the clamping rod, allowing for position adjustment according to the pitch of different springs under test, thus achieving alignment with the coil and improving the adaptability and versatility of the modular automatic spring mechanical property analyzer. In the second state, by abutting the synchronizing ring with the coil of the spring under test aligned vertically, the spring under test is not only limited during the entire testing process, but the synchronized up-and-down movement of the synchronizing ring and the spring under test also reduces wear during long-term fatigue testing, preventing wear from altering the original mechanical properties of the spring and improving the accuracy and reliability of the test results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the modular automatic spring mechanical property analyzer of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of an embodiment of a modular automatic spring mechanical property analyzer according to the present invention; Figure 3 This is a schematic diagram of a partial structure of an embodiment of a modular automatic spring mechanical property analyzer according to the present invention; Figure 4 for Figure 3 A breakdown diagram of the middle structure; Figure 5 for Figure 3 A sectional view of the middle structure; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of multiple positioning components and multiple clamping components and the spring to be tested in an embodiment of a modular automatic spring mechanical property analyzer of the present invention. Figure 8 This is an exploded view of the first component in the clamping assembly of an embodiment of a modular automatic machine spring mechanical property analyzer of the present invention; Figure 9 This is an exploded view of the second component in the clamping assembly of an embodiment of a modular automatic machine spring mechanical property analyzer of the present invention; Figure 10 This is a schematic diagram of the rotating block and transmission component of an embodiment of a modular automatic machine spring mechanical property analyzer according to the present invention; Figure 11 This is a schematic diagram of the rotating disk of an embodiment of a modular automatic spring mechanical property analyzer of the present invention; Figure 12 This is an exploded view of the positioning rod of another embodiment of the modular automatic machine spring mechanical property analyzer of the present invention; Figure 13 for Figure 12 Enlarged view of point B in the middle.

[0018] In the diagram: 100, outer casing; 110, lifting plate; 120, limiting rod; 130, first motor; 140, rotating wheel; 150, eccentric wheel; 160, crank; 200, fixed seat; 201, second motor; 202, third motor; 210, first slide groove; 220, second sliding block; 221, second elastic element; 230, second slide groove; 240, fourth sliding block; 241, fourth elastic element; 250, rotating block; 260, transmission component; 261, first gear; 262, first rack; 300, sliding seat; 400, positioning assembly; 410, positioning rod; 411, main rod; 412, rotating rod; 413, driven component; 414, driven rod; 415, rotating ring; 420 421. First sliding block; 500. First elastic element; 510. Clamping assembly; 511. Clamping rod; 512. Threaded cap; 513. Center rod; 514. Adjusting rod; 515. First rod segment; 516. Second rod segment; 517. Magnetic ring; 518. Motor; 520. Synchronizing ring; 530. Third sliding block; 531. Third elastic element; 540. Telescopic rod; 550. Center block; 551. Positioning ring; 552. Collar; 560. Fifth elastic element; 570. Clamping ring; 600. Spring to be tested; 700. Rotating disk; 710. First sliding groove; 711. First inclined groove; 712. First circumferential groove; 720. Second sliding groove; 721. Second inclined groove; 722. Second circumferential groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] An embodiment of the modular automatic spring mechanical property analyzer of the present invention, such as... Figures 1 to 11 As shown.

[0021] A modular automatic spring mechanical property analyzer includes a housing 100, a fixed base 200, a sliding base 300, a detection system, multiple positioning components 400, and multiple clamping components 500. The sliding base 300 is movably mounted inside the housing 100. The fixed base 200 is fixedly mounted inside the housing 100 and located below the sliding base 300. A spring 600 to be tested, arranged vertically, is placed on the fixed base 200. The sliding base 300 can move downwards to abut against the upper end of the spring 600 to be tested.

[0022] Multiple positioning components 400 and multiple clamping components 500 are sequentially arranged and alternately distributed around the vertical central axis of the sliding seat 300 between the sliding seat 300 and the fixed seat 200. The positioning component 400 includes a positioning rod 410, and the clamping component 500 includes a clamping rod 510 and multiple synchronizing rings 520. Both the positioning rod 410 and the clamping rod 510 are arranged vertically. The spring 600 to be tested is located inside the multiple positioning rods 410 and the multiple clamping rods 510. In the initial state, there is a gap between the multiple positioning rods 410 and the multiple clamping rods 510 and the spring 600 to be tested. Both the positioning rods 410 and the clamping rods 510 can move towards or away from the spring 600 to be tested. The multiple synchronizing rings 520 are all sleeved on the clamping rods 510 and are made of rubber. The synchronizing rings 520 can slide on the clamping rods 510, aligning the synchronizing rings 520 with one of the coils of the spring 600 to be tested in the vertical direction.

[0023] The modular automatic spring mechanical property analyzer has a first state and a second state. In the first state, multiple positioning rods 410 abut against the spring 600 under test, and multiple clamping rods 510 are spaced apart from the spring 600 under test. In the second state, multiple positioning rods 410 are spaced apart from the spring 600 under test, and the synchronization ring 520 on each clamping rod 510 abuts against the coil of the spring 600 under test, which is aligned with it in the vertical direction. The detection system is installed inside the housing 100 and is used to detect the mechanical parameters of the spring 600 under test.

[0024] This embodiment uses a housing 100, a fixed base 200, a sliding base 300, multiple positioning components 400, and multiple clamping components 500 in cooperation. In use, the spring to be tested 600 is first placed on the fixed base 200. Then, the sliding base 300 is driven to move downwards, bringing it into contact with the upper end of the spring to be tested 600. Next, multiple positioning rods 410 are driven to move towards the side closest to the spring to be tested 600, bringing them into contact with the spring to be tested, thus positioning the spring to be tested 600. At this time, the spring to be tested 600 is limited by the sliding base 300, the fixed base 200, and the multiple positioning rods 410, and the modular automatic spring mechanical property analyzer is in its first state. Then, according to the pitch parameters of the spring to be tested 600, the synchronizing ring 520 is driven to slide on the clamping rod 510, aligning the synchronizing ring 520 with one of the coils of the spring to be tested 600 in the vertical direction. Then, multiple clamping rods 510 are driven to move closer to the spring 600 under test, and multiple positioning rods 410 are moved away from the spring 600 under test, until the synchronizing ring 520 on each clamping rod abuts against the coil of the spring 600 under test, which is vertically aligned with it. At this time, the spring 600 under test is limited by the sliding seat 300, the fixed seat 200, and the multiple clamping rods 510, and the modular automatic spring mechanical property analyzer is in the second state. Then the test begins, and the sliding seat 300 is driven to move up and down reciprocally to periodically compress the spring 600 under test, so that the spring 600 under test is subjected to alternating load. At the same time, the detection system records the deformation, elastic force attenuation, and other key mechanical parameters of the spring 600 under test at a set number of cycles, so as to determine whether the spring 600 under test has reached the fatigue failure standard and evaluate its fatigue life and mechanical performance stability. Furthermore, during the reciprocating extension and retraction of the spring 600 under test, since the synchronizing ring 520 and the coil of the spring 600 under test which is aligned with it in the vertical direction are in contact, and the synchronizing ring 520 is made of rubber, the synchronizing ring 520 will move up and down synchronously with the spring 600 under test while limiting the spring 600 under test. The two remain relatively stationary, thus avoiding inaccurate mechanical performance testing of the spring 600 under test due to excessive wear.

[0025] In this embodiment, in the first state of the modular automatic spring mechanical property analyzer, the first clamping rod 510 is used to position the spring 600 under test, which improves the stability of the spring 600 and ensures the alignment of the synchronizing ring 520 with the coil of the spring 600. Multiple synchronizing rings 520 can slide along the clamping rod 510, allowing for position adjustment according to the pitch of different springs 600, thus achieving alignment with the coil and improving the adaptability and versatility of the modular automatic spring mechanical property analyzer. In the second state of the modular automatic spring mechanical property analyzer, by bringing the synchronizing ring 520 into contact with the coil of the spring 600 aligned vertically, not only is the spring 600 limited throughout the test, but the synchronized up-and-down movement of the synchronizing ring 520 and the spring 600 also reduces wear during long-term fatigue testing, preventing wear from altering the original mechanical properties of the spring 600 and improving the accuracy and reliability of the test results.

[0026] In a further embodiment, a modular automatic spring mechanical property analyzer also includes a lifting mechanism for driving the sliding seat 300 to move up and down. The lifting mechanism includes a lifting plate 110 and a hydraulic control system. Four limiting rods 120 are fixedly installed inside the housing 100, all arranged vertically. The lifting plate 110, sliding seat 300, and fixed seat 200 are sequentially arranged vertically on the limiting rods 120. The lifting plate 110 is located above the sliding seat 300, and both the lifting plate 110 and the sliding seat 300 are slidably engaged with the limiting rods 120. The fixed seat 200 is fixedly connected to the limiting rods 120. The hydraulic control system is used to drive the lifting plate 110 to move up and down. The hydraulic control system is prior art and will not be described in detail.

[0027] Similar to existing technologies, the lifting plate 110 and the sliding seat 300 are connected by a reciprocating drive component. This reciprocating drive component drives the sliding seat 300 to move up and down reciprocally. The reciprocating drive component includes a rotating wheel 140, an eccentric wheel 150, and a crank 160. The rotating wheel 140 is mounted on the lower end of the lifting plate 110 and is driven to rotate by a first motor 130. The first motor 130 is electrically connected to a detection system, which can control the start and stop of the first motor 130. The eccentric wheel 150 is eccentrically positioned on the rotating wheel 140. One end of the crank 160 rotates with the eccentric wheel 150, and the other end is fixedly connected to the sliding seat 300.

[0028] By setting up a lifting mechanism, after the spring 600 to be tested is placed on the fixed seat 200, the lifting plate 110 is first driven to move downward using the hydraulic control system. The downward movement of the lifting plate 110 will drive the sliding seat 300 downward through the reciprocating drive component, so that the sliding seat 300 can abut against the upper end of the spring 600 to be tested. During the test, the first motor 130 is started separately, which drives the rotating wheel 140 to rotate. The rotation of the rotating wheel 140 will drive the eccentric wheel 150 to rotate, which in turn drives the crank 160 to move in the vertical direction through the eccentric wheel 150. At this time, the crank 160 will rotate relative to the eccentric wheel 150, causing the sliding seat 300 to move up and down reciprocally, thereby realizing the reciprocating compression of the spring 600 to be tested.

[0029] In a further embodiment, the upper end of the positioning rod 410 is slidably mounted on the sliding seat 300 via a first sliding block 420. The sliding seat 300 and the first sliding block 420 are keyway-fitted, and a first elastic element 421 is provided between them. The first elastic element 421 is a spring, which allows the positioning rod 410 to move up and down with the sliding seat 300 and to move relative to the sliding seat 300 towards or away from the spring 600 to be tested. The fixed seat 200 is provided with a plurality of first sliding grooves 210, which are arranged in a horizontal direction and correspond one-to-one with the positioning rod 410. Each first sliding groove 210 is connected to a second sliding block 220 via a second elastic element 221, which is a spring. The positioning rod 410 and the second sliding block 220 are slidably engaged.

[0030] The upper end of the clamping rod 510 is slidably mounted on the sliding seat 300 via a third sliding block 530. The sliding seat 300 and the third sliding block 530 are keyway-fitted, and a third elastic element 531, which is a spring, is provided between them, allowing the clamping rod 510 to move up and down with the sliding seat 300 and to move relative to the sliding seat 300 towards or away from the spring 600 to be tested. The fixed seat 200 has multiple second sliding grooves 230, which are arranged horizontally and correspond one-to-one with the clamping rod 510. Each second sliding groove 230 is connected to a fourth sliding block 240 via a fourth elastic element 241, which is a spring. The clamping rod 510 and the fourth sliding block 240 are slidably engaged.

[0031] In the initial state, since the heights of the different test springs 600 are different, in order to ensure that the test spring 600 can be placed smoothly on the fixed seat 200, the distance between the sliding seat 300 and the fixed seat 200 can be relatively large in the initial state. That is, at this time, the clamping rod 510 can be disengaged from the fourth sliding block 240, the positioning rod 410 can be disengaged from the second sliding block 220, and after the test spring 600 is placed, the positioning rod 410 passes through the second sliding block 220 and the clamping rod 510 passes through the fourth sliding block 240.

[0032] In a further embodiment, a rotating disk 700 is coaxially and rotatably disposed below the fixed base 200. The rotating disk 700 has multiple first sliding grooves 710 and multiple second sliding grooves 720. The first sliding grooves 710 correspond one-to-one with the first sliding grooves 210, and the positioning rod 410 can sequentially pass through the second sliding block 220 and the first sliding groove 710. The second sliding grooves 720 correspond one-to-one with the second sliding grooves 230, and the clamping rod 510 can sequentially pass through the fourth sliding block 240 and the second sliding groove 720. When the rotating disk 700 rotates clockwise, the positioning rod 410 can move towards the side closer to the spring 600 to be tested, and the clamping rod 510 can move away from the spring 600 to be tested. When the rotating disk 700 rotates counterclockwise, the clamping rod 510 can move towards the side closer to the spring 600 to be tested, and the positioning rod 410 can move away from the spring 600 to be tested.

[0033] The first sliding groove 710 includes a first inclined groove 711 and a first circumferential groove 712. The first inclined groove 711 is inclined relative to the radial direction of the rotating disk 700, and the first circumferential groove 712 is coaxially arranged with the rotating disk 700. The first inclined groove 711 and the first circumferential groove 712 are arranged sequentially and interconnected in the forward rotation direction of the rotating disk 700, and in the forward rotation direction of the rotating disk 700, the first inclined groove 711 is located behind the first circumferential groove 712. In the initial state, the positioning rod 410 is located at the connection between the first inclined groove 711 and the first circumferential groove 712. The second sliding groove 720 includes a second inclined groove 721 and a second circumferential groove 722. The second inclined groove 721 is inclined relative to the radial direction of the rotating disk 700, and the second circumferential groove 722 is coaxially arranged with the rotating disk 700. The second inclined groove 721 and the second circumferential groove 722 are arranged sequentially and interconnected in the forward rotation direction of the rotating disk 700, and in the forward rotation direction of the rotating disk 700, the second inclined groove 721 is located in front of the second circumferential groove 722. In the initial state, the clamping rod 510 is located at the connection between the second inclined groove 721 and the second circumferential groove 722.

[0034] See Figure 11 As shown, the clockwise rotation of the rotating disk 700 is called forward rotation, the direction closer to the clockwise arrow is called forward, and the direction farther from the clockwise arrow is called backward.

[0035] Specifically, a second motor 201 is mounted on the fixed base 200. A rotating gear is fixedly mounted on the output end of the second motor 201. A gear ring is coaxially mounted and fixedly mounted on the outer peripheral wall of the rotating disk 700, and the gear ring meshes with the rotating gear. The second motor 201 is electrically connected to the detection system, and the detection system can control the start and stop of the second motor 201.

[0036] In use, starting the second motor 201 will drive the rotating disk 700 to rotate, and the second motor 201 will rotate forward. The forward rotation of the second motor 201 will cause the rotating disk 700 to rotate forward. The forward rotation of the rotating disk 700, through the interaction of the first inclined groove 711 and the first sliding groove 210, will cause the positioning rod 410 to move horizontally towards the side closer to the spring 600 to be tested. At this time, the clamping rod 510 will slide relative to the second circumferential groove 722, and the modular automatic spring mechanical property analyzer is in the first state. When it is necessary to switch the modular automatic spring mechanical property analyzer to the second state, the second motor 201 will be reversed. The reverse rotation of the second motor 201 will drive the rotating disk 700 to rotate in the opposite direction. For the positioning rod 410, rotation... The reversal of disk 700 will cause the positioning rod 410 to move horizontally away from the spring 600 under test through the cooperation of the first inclined groove 711 and the first sliding groove 210. After the positioning rod 410 returns to the initial state, it will slide relative to the first circumferential groove 712. For the clamping rod 510, the reversal of disk 700 will first return it to the initial state, and then, through the cooperation of the second inclined groove 721 and the second sliding groove 230, it will cause the clamping rod 510 to move horizontally towards the spring 600 under test. Under the premise that the synchronous ring 520 and one of the coils of the spring 600 under test, which is aligned with it in the vertical direction, are aligned in the vertical direction, the modular automatic spring mechanical property analyzer switches to the second state.

[0037] In a further embodiment, three of each of the positioning component 400 and the clamping component 500 are provided.

[0038] In a further embodiment, a telescopic rod 540 is provided between the third sliding block 530 and the fourth sliding block 240. The telescopic rod 540 is a rectangular rod, and a center block 550 is sleeved on the telescopic rod 540. The upper and lower ends of the center block 550 abut against the third sliding block 530 and the fourth sliding block 240 respectively through a fifth elastic member 560. The fifth elastic member 560 is arranged in a vertical direction and is a spring, so that the center block 550 can always be in the middle of the telescopic rod 540 under the action of the fifth elastic member 560.

[0039] The clamping rod 510 is hollow inside, and its lower end is sealed by a threaded cap 511. Each clamping rod 510 has a coaxially rotatable central rod 512. An adjusting rod 513 is coaxially mounted on the central rod 512. The adjusting rod 513 is located between the central rod 512 and the clamping rod 510 and engages with the keyway of the central rod 512, allowing the adjusting rod 513 to rotate with the central rod 512 and move vertically relative to it. The adjusting rod 513 includes a first rod segment 514 and a second rod segment 515. The first rod segment 514 is located above and fixedly connected to the second rod segment 515. Both the first rod segment 514 and the second rod segment 515 are helical rods of the same length. A magnetic ring 516 is screwed onto both the first rod segment 514 and the second rod segment 515. The magnetic ring 516 engages with the keyway on the inner wall of the clamping rod 510, allowing the magnetic ring 516 to move vertically relative to the clamping rod 510. Magnetic rings 516 and synchronizing rings 520 are arranged in a one-to-one correspondence. Both magnetic rings 516 and their corresponding synchronizing rings 520 are radial magnetic components. Magnetic rings 516 and their corresponding synchronizing rings 520 can attract each other and move synchronously. In the initial state, the distances from the two magnetic rings 516 to the connection point of the first rod segment 514 and the second rod segment 515 are the same. The three clamping assemblies 500 are divided into one first assembly and two second assemblies. In the adjusting rod 513 of the first assembly, the pitch of the first rod segment 514 is the same as the pitch of the second rod segment 515. In the adjusting rod 513 of the second assembly, the pitch of the first rod segment 514 is different from the pitch of the second rod segment 515.

[0040] The second sliding block 220 is equipped with a motor 517, and the central rod 512 is driven to rotate by the motor 517.

[0041] Furthermore, two positioning rings 551 are connected to the center block 550 of the first component, and a clamping ring 570 is provided between the two positioning rings 551. The clamping ring 570 and the two positioning rings 551 are all sleeved on the clamping rod 510 of the first component. In the initial state, the clamping ring 570 is located at the connection between the first rod segment 514 and the second rod segment 515, that is, at this time, the distance from the two magnetic rings 516 to the clamping ring 570 is the same. And the structure of the clamping ring 570 is the same as the structure of the synchronization ring 520. A collar 552 is connected to the center block 550 of the second component, and the collar 552 is sleeved on the clamping rod 510 of the second component.

[0042] In a further embodiment, the spring 600 to be tested is configured to rotate about its own axis.

[0043] The system includes a third motor 202 mounted on a fixed base 200. A rotating block 250 is fixedly mounted on the output end of the third motor 202. A transmission component 260 is mounted on the rotating block 250, comprising a first gear 261 and a first rack 262. The first gear 261 is vertically oriented and rotatably engages with the rotating block 250. The first rack 262 is slidably mounted on the rotating block 250 and meshes with the first gear 261. The first rack 262 can abut against the lower end of the spring 600 under test. The third motor 202 is electrically connected to the detection system, which can control the start and stop of the third motor 202.

[0044] Furthermore, two transmission components 260 are provided, and the two first racks 262 of the two transmission components 260 are arranged opposite to each other. By providing two transmission components 260, the first gear 261 that needs to be rotated can be rotated according to the position of the spring 600 under test during use, thereby adjusting the extended first rack 262 so that the smooth surface of the extended first rack 262 can abut against the lower end of the spring 600 under test, thus avoiding wear of the first rack 262.

[0045] Given that the pitch of the spring 600 under test is known, to ensure that the synchronizing ring 520 on each clamping rod 510 can abut against one of the coils of the spring 600 under test, which is vertically aligned with it, the operator first manually rotates the first gear 261. The rotation of the first gear 261 causes the first rack 262, which meshes with it, to extend horizontally, allowing the first rack 262 to extend to the lower end of the spring 600 under test. After the third motor 202 is started, it drives the rotating block 250 to rotate, which in turn drives the first rack 262 to rotate, allowing the first rack 262 to abut against the lower end of the spring 600 under test and push the spring 600 to rotate. By making the extension length of the first rack 262 variable, the modular automatic spring mechanical property analyzer can be adapted to springs 600 with different diameters, improving its versatility.

[0046] Furthermore, once the pitch of the spring 600 under test is known, the midpoints of the multiple coils of the spring 600 under test can be aligned with the clamping ring 570 of the first assembly, based on the number of coils. Specifically, taking the position of the clamping ring 570 as a reference, for the spring 600 under test with an even number of coils, its midpoint coincides with the position of its lower end. Therefore, it is only necessary to rotate the lower end of the spring 600 under test to face the clamping ring 570, so that the midpoint of the spring 600 under test also faces the clamping ring 570. For the spring 600 under test with an odd number of coils, the angle between its midpoint and its lower end is 180°. Therefore, it is only necessary to rotate the lower end of the spring 600 under test to face away from the clamping ring 570, so that the midpoint of the spring 600 under test faces the clamping ring 570. For the spring 600 under test with half a turn, the angle between its midpoint and lower end is 90°. Therefore, it is only necessary to rotate the lower end of the spring 600 under test until the angle between it and the clamping ring 570 is 90°, so that the midpoint of the spring 600 under test faces the clamping ring 570.

[0047] After the midpoint of the spring 600 to be tested is oriented toward the clamping ring 570, the motor 517 in each clamping rod 510 is started to rotate the center rod 512. The rotation of the center rod 512 will drive the adjusting rod 513 to rotate. Since the magnetic ring 516 is engaged with the keyway on the inner circumferential wall of the clamping rod 510, the rotation of the magnetic ring 516 is restricted. The helical transmission between the two magnetic rings 516 and the first rod segment 514 and the second rod segment 515 takes effect, causing the two magnetic rings 516 to move in the vertical direction to adjust the position of the magnetic rings 516. The movement of the magnetic rings 516 will also drive the corresponding synchronous ring 520 to move synchronously to adjust the position of the synchronous ring 520.

[0048] Furthermore, for the adjusting rod 513 of the first component, since the pitch of the first rod segment 514 is the same as the pitch of the second rod segment 515, when driving the central rod 512 of the first component to rotate and adjust the distance between the two magnetic rings 516 and the clamping ring 570, it is only necessary to make the distance between each magnetic ring 516 and the clamping ring 570 equal to the pitch of the spring 600 to be tested. Moreover, the movement of the magnetic ring 516 will drive the corresponding synchronous ring 520 to move synchronously, so that in the first component, the clamping ring 570 and the two synchronous rings 520 can be aligned with the coil of the spring 600 to be tested.

[0049] As for the adjusting rod 513 of the second component, since the pitch of the first rod segment 514 is not the same as the pitch of the second rod segment 515, and the included angle between each second component and the first component is 120°, in the helical direction of the coil of the spring 600 to be tested, by setting the pitch of the first rod segment 514 and the second rod segment 515 on the two second components, for one of the second components, the distance from the magnetic ring 516 on the first rod segment 514 to the connection point of the first rod segment 514 and the second rod segment 515 is 4 / 3 of the pitch value of the spring 600 to be tested, and the distance from the magnetic ring 516 on the second rod segment 515 to the connection point of the first rod segment 514 and the second rod segment 515 is 2 / 3 of the distance value. For the other second component, the distance from the magnetic ring 516 on the first segment 514 to the connection point of the first segment 514 and the second segment 515 is 2 / 3 of the pitch value of the spring 600 under test, and the distance from the magnetic ring 516 on the second segment 515 to the connection point of the first segment 514 and the second segment 515 is 4 / 3 of the distance value, so that the synchronization ring 520 in both second components can be aligned with the coil of the spring 600 under test.

[0050] After the synchronizing ring 520 and the clamping ring 570 are both in contact with the coil of the spring 600 under test, during the test, when the sliding seat 300 drives the spring 600 under test to reciprocate, the telescopic rod 540 will also continuously extend and retract. The center block 550 on the first and second components will always be in the middle of the telescopic rod 540 under the action of the fifth elastic element 560. At this time, the clamping ring 570 in the first component will also move synchronously with the center block 550 and the spring 600 under test, keeping the center block 550, clamping ring 570, and spring 600 under test relatively stationary. The synchronizing ring 520 will also move synchronously with the spring 600 under test. The movement of the synchronizing ring 520 will drive the corresponding magnetic ring 516 to move, which in turn drives the adjusting rod 513 to slide up and down relative to the center rod 512 and the clamping rod 510, thus limiting the movement of the spring 600 under test throughout the entire test process.

[0051] In another possible embodiment, see Figure 12 and 13As shown. The positioning rod 410 includes a main rod 411, a rotating rod 412, and a driven member 413. The main rod 411 is arranged vertically, with a first sliding block 420 and a second sliding block 220 located at the upper and lower ends of the main rod 411, respectively. The rotating rod 412 is coaxial with the main rod 411 and rotatably engages with it. The surface of the rotating rod 412 is rough, and its vertical dimension is larger than the pitch of the spring 600 to be tested. The driven member 413 is located above the rotating rod 412, coaxial with the main rod 411, and rotatably engages with it. The surface of the driven member 413 is rough, and its vertical dimension is smaller than the pitch of the spring 600 to be tested. Both the rotating rod 412 and the driven member 413 are equipped with encoders. The encoders are electrically connected to the detection system. The encoder on the rotating rod 412 is used to detect the number of rotations of the rotating rod 412, and the encoder on the driven member 413 is used to detect the number of rotations of the driven member 413.

[0052] The driven member 413 includes a driven rod 414 and multiple rotating rings 415. The driven rod 414 is rotatably mounted on the main rod 411, and the multiple rotating rings 415 are detachably mounted on the driven rod 414. The rotating rings 415 have a rough surface. The encoder is mounted on the main rod 411 or the rotating rings 415.

[0053] The second motor 201 has a torque sensor that can detect the torque change parameters of the rotating gear and transmit the torque change parameters of the rotating gear to the control system. The control system can control the second motor 201 to rotate forward or backward according to the torque change parameters of the rotating gear.

[0054] In use, after the sliding seat 300 abuts against the upper end of the spring 600 under test, the sliding seat 300 will compress the spring 600 under test. Although this compression is not large, it may affect the pitch of the spring 600 under test, causing a change in its pitch. Although this change is not large and the synchronizing ring 520 has a certain width in the vertical direction, the synchronizing ring 520 can still abut against the coil of the spring 600 under test even if the pitch is not detected. However, in order to improve the positioning accuracy, this embodiment sets the main rod 411, the rotating rod 412 and the driven member 413 to cooperate. When the positioning rod 410 abuts against the spring 600 under test, the rotating rod 412 will abut against multiple coils of the spring 600 under test. By setting the number of rotating rings 415, multiple rotating rings 415 are positioned between two adjacent coils of the spring 600 under test. Furthermore, after the spring 600 under test is compressed, its diameter will also change, causing multiple positioning rods 410 to move away from the spring 600 under test. The movement of the positioning rods 410 will have a tendency to drive the rotating disk 700 to rotate. Since the rotation of the rotating disk 700 is controlled by the second motor 201, when the gear ring on the rotating disk 700 transmits torque to the rotating gear, the torque sensor will detect the torque change parameter of the rotating gear and transmit the torque change parameter of the rotating gear to the control system. Then, the control system drives the second motor 201 to reverse, thereby enabling the rotating disk 700 to rotate to make way for the spring 600 under test.

[0055] Then, the spring under test 600 is driven to rotate. Due to the rough surfaces of the rotating rod 412 and the rotating ring 415, the rotation of the spring under test 600 will drive the rotating rod 412 to rotate through friction transmission. At this time, the encoder on the rotating rod 412 will record the number of rotations of the rotating rod 412 after the spring under test 600 rotates once. The number of rotations of the rotating rod 412 is called N1. Since the position of the rotating ring 415 remains unchanged, the coil of the spring under test 600 is helical. Although initially multiple rotating rings 415 are located between two adjacent coils, they cannot interact with the coil. During the rotation of the spring 600 under test, a coil will gradually rotate until it contacts the rotating ring 415. When the coil on the spring 600 under test contacts the rotating ring 415, the rotating ring 415 will also be driven to rotate by the spring 600 under test, thereby driving the driven rod 414 to rotate. At this time, the encoder on the driven rod 414 or the rotating ring 415 will record the number of rotations of the driven rod 414 or the rotating ring 415 after each rotation of the spring 600 under test, and the number of rotations of the driven rod 414 or the rotating ring 415 is called N2. Since the vertical height of the multiple rotating rings 415 is known, it is called H1. The pitch after being compressed by the sliding seat 300 is called H2. Therefore, it can be known that... It can be calculated The actual pitch of the spring 600 under test is thus determined. Therefore, when adjusting the position of the synchronizing ring 520 subsequently, the actual pitch of the spring 600 can be used for adjustment, resulting in more accurate positioning.

[0056] Based on the above embodiments, the specific working process is as follows: In use, the spring 600 to be tested is first placed on the fixed base 200, and then the sliding base 300 is driven to move downwards so that the sliding base 300 abuts against the upper end of the spring 600. Then, the second motor 201 is started. The start of the second motor 201 will drive the rotating disk 700 to rotate, and the second motor 201 will rotate forward. The forward rotation of the second motor 201 will drive the rotating disk 700 to rotate forward. The rotation of the rotating disk 700 will cause the positioning rod 410 to move horizontally towards the side closer to the spring 600 to be tested through the mutual cooperation of the first sliding groove 710 and the first sliding groove 210, so that the positioning rod 410 abuts against the spring 600 to be tested, thereby positioning the spring 600. At this time, the clamping rod 510 will slide relative to the second circumferential groove 722. At this time, the spring 600 to be tested is limited by the sliding base 300, the fixed base 200 and multiple positioning rods 410, and the modular automatic spring mechanical property analyzer is in the first state.

[0057] Given that the pitch of the spring 600 under test is known, to ensure that the synchronizing ring 520 on each clamping rod 510 can abut against one of the coils of the spring 600 under test, which is vertically aligned with it, the operator first manually rotates the first gear 261. The rotation of the first gear 261 causes the first rack 262, which meshes with it, to extend horizontally, allowing the first rack 262 to extend to the lower end of the spring 600 under test. After the third motor 202 is started, it drives the rotating block 250 to rotate, which in turn drives the first rack 262 to rotate, allowing the first rack 262 to abut against the lower end of the spring 600 under test and push the spring 600 to rotate. By making the extension length of the first rack 262 variable, the modular automatic spring mechanical property analyzer can be adapted to springs 600 with different diameters, improving its versatility.

[0058] Furthermore, once the pitch of the spring 600 under test is known, the midpoints of the multiple coils of the spring 600 under test can be aligned with the clamping ring 570 of the first assembly, based on the number of coils. Specifically, taking the position of the clamping ring 570 as a reference, for a spring 600 under test with an even number of coils, its midpoint coincides with its lower end. Therefore, it is only necessary to rotate the lower end of the spring 600 under test to face the clamping ring 570, so that the midpoint of the spring 600 under test also faces the clamping ring 570. For a spring 600 under test with an odd number of coils, the angle between its midpoint and its lower end is 180°. Therefore, it is only necessary to rotate the lower end of the spring 600 under test to face away from the clamping ring 570, so that the midpoint of the spring 600 under test faces the clamping ring 570. For the spring 600 under test with half a turn, the angle between its midpoint and lower end is 90°. Therefore, it is only necessary to rotate the lower end of the spring 600 under test until the angle between it and the clamping ring 570 is 90°, so that the midpoint of the spring 600 under test faces the clamping ring 570.

[0059] After the midpoint of the spring 600 to be tested is oriented toward the clamping ring 570, the motor 517 in each clamping rod 510 is started to rotate the center rod 512. The rotation of the center rod 512 will drive the adjusting rod 513 to rotate. Since the magnetic ring 516 is engaged with the keyway on the inner circumferential wall of the clamping rod 510, the rotation of the magnetic ring 516 is restricted. The helical transmission between the two magnetic rings 516 and the first rod segment 514 and the second rod segment 515 takes effect, causing the two magnetic rings 516 to move in the vertical direction to adjust the position of the magnetic rings 516. The movement of the magnetic rings 516 will also drive the corresponding synchronous ring 520 to move synchronously to adjust the position of the synchronous ring 520.

[0060] Furthermore, for the adjusting rod 513 of the first component, since the pitch of the first rod segment 514 is the same as the pitch of the second rod segment 515, when driving the central rod 512 of the first component to rotate and adjust the distance between the two magnetic rings 516 and the clamping ring 570, it is only necessary to make the distance between each magnetic ring 516 and the clamping ring 570 equal to the pitch of the spring 600 to be tested. Moreover, the movement of the magnetic ring 516 will drive the corresponding synchronous ring 520 to move synchronously, so that in the first component, the clamping ring 570 and the two synchronous rings 520 can be aligned with the coil of the spring 600 to be tested.

[0061] As for the adjusting rod 513 of the second component, since the pitch of the first rod segment 514 is not the same as the pitch of the second rod segment 515, and the included angle between each second component and the first component is 120°, in the helical direction of the coil of the spring 600 to be tested, by setting the pitch of the first rod segment 514 and the second rod segment 515 on the two second components, for one of the second components, the distance from the magnetic ring 516 on the first rod segment 514 to the connection point of the first rod segment 514 and the second rod segment 515 is 4 / 3 of the pitch value of the spring 600 to be tested, and the distance from the magnetic ring 516 on the second rod segment 515 to the connection point of the first rod segment 514 and the second rod segment 515 is 2 / 3 of the distance value. For the other second component, the distance from the magnetic ring 516 on the first segment 514 to the connection point of the first segment 514 and the second segment 515 is 2 / 3 of the pitch value of the spring 600 under test, and the distance from the magnetic ring 516 on the second segment 515 to the connection point of the first segment 514 and the second segment 515 is 4 / 3 of the distance value, so that the synchronization ring 520 in both second components can be aligned with the coil of the spring 600 under test.

[0062] Then, the second motor 201 is reversed. The reverse rotation of the second motor 201 will drive the rotating disk 700 to reverse as well. For the positioning rod 410, the reverse rotation of the rotating disk 700 will, through the interaction of the first sliding groove 710 and the first sliding groove 210, cause the positioning rod 410 to move horizontally away from the spring 600 under test. After the positioning rod 410 returns to its initial state, it will slide relative to the second circumferential groove 722. For the clamping rod 510, the reverse rotation of the rotating disk 700 will first return it to its initial state, and then, through the interaction of the second sliding groove 720 and the second sliding groove 230, cause the clamping rod 510 to move horizontally towards the spring 600 under test, so that the synchronizing ring 520 and the clamping ring 570 both abut against the coil of the spring 600 under test. At this time, the spring 600 under test is limited by the sliding seat 300, the fixed seat 200, and the multiple clamping rods 510, and the modular automatic spring mechanical property analyzer is in the second state.

[0063] The test then begins, driving the sliding block 300 to move up and down reciprocally, periodically compressing the spring 600 under test, subjecting it to alternating loads. Simultaneously, the analyzer's internal detection system records key mechanical parameters such as deformation and elasticity attenuation of the spring 600 at a set number of cycles. This is used to determine whether the spring 600 meets fatigue failure criteria and to assess its fatigue life and mechanical performance stability. During the test, as the sliding block 300 drives the spring 600 to reciprocate, the telescopic rod 540 continuously extends and retracts. The center block 550 on the first and second components remains in the center of the telescopic rod 540 under the action of the fifth elastic element 560. At this time, the clamping ring 570 in the first component also moves synchronously with the center block 550 and the spring 600 under test, keeping the center block 550, clamping ring 570, and spring 600 relatively stationary. Furthermore, the synchronizing ring 520 will move synchronously with the spring 600 under test. The movement of the synchronizing ring 520 will drive the corresponding magnetic ring 516 to move, which in turn will cause the adjusting rod 513 to slide up and down relative to the center rod 512 and the clamping rod 510, thereby limiting the movement of the spring 600 under test throughout the entire test process. This prevents inaccurate mechanical performance testing of the spring 600 under test due to excessive wear.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular automatic spring mechanical property analyzer, characterized in that: The device includes a housing, a fixed base, a sliding base, a detection system, multiple positioning components, and multiple clamping components. The sliding base is movably mounted inside the housing, while the fixed base is fixedly mounted inside the housing and located below the sliding base. A spring to be tested, positioned vertically, is placed on the fixed base. The sliding base moves downward to abut against the spring to be tested. Multiple positioning components and multiple clamping components are arranged sequentially and alternately around the vertical central axis of the sliding base between the sliding base and the fixed base. Each positioning component includes a positioning rod, and each clamping component includes a clamping rod and multiple synchronizing rings. Both the positioning rod and the clamping rod are positioned vertically. The spring to be tested is located inside the multiple positioning rods and multiple clamping rods. Both the positioning rods and the clamping rods can move towards or away from the spring to be tested. Multiple synchronizing rings are sleeved on the clamping rods and are made of rubber. The synchronizing rings can slide on the clamping rods to align the synchronizing rings with one of the coils of the spring to be tested in the vertical direction. The modular automatic spring mechanical property analyzer has a first state and a second state. In the first state, multiple positioning rods are in contact with the spring to be tested, and multiple clamping rods are spaced apart from the spring to be tested. In the second state, multiple positioning rods are spaced apart from the spring to be tested, and the synchronization ring on each clamping rod is in contact with the coil of the spring to be tested, which is aligned with it in the vertical direction. The testing system is installed inside the housing and is used to test the mechanical parameters of the spring under test.

2. The modular automatic spring mechanical property analyzer according to claim 1, characterized in that: The upper end of the positioning rod is slidably mounted on the sliding seat via a first sliding block. The sliding seat and the first sliding block are keyway-fitted, and a first elastic element is provided between them. The fixed seat has multiple first sliding grooves, which are arranged horizontally and correspond one-to-one with the positioning rod. Each first sliding groove is connected to a second sliding block via a second elastic element, and the positioning rod is slidably fitted with the second sliding block. The upper end of the clamping rod is slidably mounted on the sliding seat via a third sliding block. The sliding seat and the third sliding block are keyway-fitted, and a third elastic element is provided between them. The fixed seat has multiple second sliding grooves, which are arranged horizontally and correspond one-to-one with the clamping rod. Each second sliding groove is connected to a fourth sliding block via a fourth elastic element, and the clamping rod is slidably fitted with the fourth sliding block.

3. The modular automatic spring mechanical property analyzer according to claim 2, characterized in that: A rotating disk is coaxially and rotatably mounted below the fixed base. The rotating disk has multiple first sliding grooves and multiple second sliding grooves. The first sliding grooves are arranged one-to-one with each other, and the positioning rod can pass through the second sliding block and the first sliding groove in sequence. The second sliding grooves are arranged one-to-one with each other, and the clamping rod can pass through the fourth sliding block and the second sliding groove in sequence. When the rotating disk rotates clockwise, the positioning rod can move towards the side of the spring to be tested, and the clamping rod can move away from the side of the spring to be tested. When the rotating disk rotates counterclockwise, the clamping rod can move towards the side of the spring to be tested, and the positioning rod can move away from the side of the spring to be tested.

4. The modular automatic machine spring mechanical property analyzer according to claim 3, characterized in that: The first sliding groove includes a first inclined groove and a first circumferential groove. The first inclined groove is inclined relative to the radial direction of the rotating disk, and the first circumferential groove is coaxial with the rotating disk. The first inclined groove and the first circumferential groove are arranged sequentially and connected to each other in the forward rotation direction of the rotating disk. In the forward rotation direction of the rotating disk, the first inclined groove is located behind the first circumferential groove. In the initial state, the positioning rod is located at the connection between the first inclined groove and the first circumferential groove. The second sliding groove includes a second inclined groove and a second circumferential groove. The second inclined groove is inclined relative to the radial direction of the rotating disk, and the second circumferential groove is coaxial with the rotating disk. The second inclined groove and the second circumferential groove are arranged sequentially and connected to each other in the forward rotation direction of the rotating disk. In the forward rotation direction of the rotating disk, the second inclined groove is located in front of the second circumferential groove. In the initial state, the clamping rod is located at the connection between the second inclined groove and the second circumferential groove.

5. A modular automatic machine spring mechanical property analyzer according to claim 3, characterized in that: There are three positioning components and three clamping components.

6. The modular automatic machine spring mechanical property analyzer according to claim 5, characterized in that: A telescopic rod is provided between the third and fourth sliding blocks. A center block is sleeved on the telescopic rod, and the upper and lower ends of the center block abut against the third and fourth sliding blocks respectively through a fifth elastic element. The clamping rod is hollow inside, and a central rod is coaxially and rotatably mounted inside each clamping rod. An adjusting rod is coaxially mounted on the central rod, and the adjusting rod is located between the central rod and the clamping rod and mates with the keyway of the central rod. The adjusting rod includes a first rod segment and a second rod segment. The first rod segment is located above the second rod segment and is fixedly connected to the second rod segment. Both the first rod segment and the second rod segment are helical rods and are long. The same degree; magnetic rings are screwed onto both the first and second rod segments, and the magnetic rings cooperate with the keyway on the inner wall of the clamping rod; the magnetic rings and the synchronizing rings are set one-to-one, and the magnetic rings can attract each other and move synchronously with the corresponding synchronizing rings; in the initial state, the distance from the two magnetic rings to the connection point of the first and second rod segments is the same; the three clamping components are divided into one first component and two second components; in the adjusting rod of the first component, the pitch of the first rod segment is the same as the pitch of the second rod segment, and in the adjusting rod of the second component, the pitch of the first rod segment is different from the pitch of the second rod segment.

7. A modular automatic machine spring mechanical property analyzer according to claim 6, characterized in that: Two positioning rings are connected to the center block of the first component, and a clamping ring is provided between the two positioning rings. The clamping ring and the two positioning rings are all sleeved on the clamping rod of the first component. In the initial state, the clamping ring is located at the connection between the first rod segment and the second rod segment, and the structure of the clamping ring is the same as the structure of the synchronization ring. A collar is connected to the center block of the second component, and the collar is sleeved on the clamping rod of the second component.

8. The modular automatic machine spring mechanical property analyzer according to claim 1, characterized in that: The spring to be tested is configured to rotate about its own axis.

9. A modular automatic machine spring mechanical property analyzer according to claim 8, characterized in that: A rotating block is rotatably mounted on the fixed base, and a transmission component is mounted on the rotating block. The transmission component includes a first gear and a first rack. The first gear is arranged in the vertical direction and rotates with the rotating block. The first rack is slidably mounted on the rotating block and meshes with the first gear. The first rack can abut against the lower end of the spring to be tested.

10. A modular automatic machine spring mechanical property analyzer according to claim 8, characterized in that: The positioning rod includes a main rod, a rotating rod, and a driven member. The main rod is set in the vertical direction. The rotating rod is coaxial with the main rod and rotates with the main rod. The surface of the rotating rod is rough and the vertical dimension of the rotating rod is larger than the pitch of the spring to be measured. The driven member is located above the rotating rod, coaxially mounted and rotatably engaged with the main rod. The surface of the driven member is rough and its vertical dimension is smaller than the pitch of the spring to be tested. Both the rotating rod and the driven member are equipped with encoders, which are electrically connected to the detection system. The encoder on the rotating rod is used to detect the number of rotations, and the encoder on the driven member is used to detect the number of rotations of the driven member.

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