Flexible connection product testing device

Abstract

The utility model relates to product detection equipment field, specifically is a kind of flexible connection product testing device suitable for shaft rotation fatigue performance detection.A kind of flexible connection product testing device, it includes: main bottom plate, for bearing swing drive mechanism, main support and product to be detected;Main support is vertically arranged in one side of main bottom plate;Swing drive mechanism is arranged in the inner side surface of main support;Swing arm, swing drive mechanism is connected with swing arm below;Spring linkage seat is installed on swing arm upper surface, and spring linkage seat is connected with spring linkage chuck by elastic component and spring linkage chuck soft connection;The free end of product to be detected is linked with the spring linkage chuck.Simulate real service working condition, avoid the error of artificial measurement;Stable and reliable, flexible adaptation, modular design+flexible connection.

Description

Technical Field

[0001] This utility model relates to the field of product testing equipment, specifically a testing device for flexible connection products suitable for testing the rotational fatigue performance of shafts. Background Technology

[0002] During the production of sanitary ware, real-time testing of its service life and fatigue limit is necessary to obtain more accurate data, allowing manufacturers and customers to more precisely control the product's lifespan. In sanitary ware, the main fatigue points of faucets are the rotating parts of the spout or handle, which require frequent rotation to open or close. In actual production, most existing fatigue limit testing devices use rigid connections.

[0003] The dimensions of the installation parts of sanitary ware products such as faucets are mostly measured manually. Manual measurement has limited accuracy. In addition, the reciprocating motion of two axes, if the sample and the testing device are rigidly connected, measurement errors and installation errors will cause the product to be subjected to expansion, tension or pressure during testing. This can lead to damage under non-natural use conditions, making it impossible to accurately detect the effective service life of the product. Summary of the Invention

[0004] This invention addresses the shortcomings of existing fatigue limit testing devices that are rigidly connected to products by elastic compensation, providing a flexible connection product testing device that avoids damage to the product caused by a rigid connection.

[0005] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows: a flexible connection product testing device, comprising: a main base plate for supporting a swing drive mechanism, a main support, and the product to be tested; a main support vertically disposed on one side of the main base plate; a swing drive mechanism disposed on the inner side of the main support; a swing arm, the swing drive mechanism being connected to the lower part of the swing arm; a spring linkage seat mounted on the swing arm, the spring linkage seat being flexibly connected to a spring linkage clamp via an elastic component; and the free end of the product to be tested being linked with the spring linkage clamp.

[0006] Preferably, the swing drive mechanism includes a cylinder, a gear base and a bearing assembly mounted on the inner side of the main support; the cylinder is mounted on the main base plate via a cylinder bracket; the bearing assembly is located below the gear base; a gear is mounted on the gear base, and the side of the gear is connected to the lower part of the swing arm; a rack meshing with the gear is provided below the gear; the rack is located on the bearing assembly, and the two are in sliding engagement; one end of the rack is connected to the extended end of the cylinder to achieve horizontal movement.

[0007] Preferably, the lower surface of the rack has a through groove along its length, and the upper part of the bearing assembly is placed in the groove.

[0008] Preferably, the system also includes a synchronization mechanism disposed on the outside of the main support; the synchronization mechanism includes a synchronization belt, a synchronization pulley and a synchronization pulley base; the synchronization pulley includes an upper synchronization pulley and a lower synchronization pulley; the upper synchronization pulley is mounted on the upper part of the rocker arm through the synchronization pulley base; the lower synchronization pulley is mounted on the outer side of the main support through a connector; a synchronization belt is sleeved between the upper synchronization pulley and the lower synchronization pulley.

[0009] Preferably, the spring linkage seat is connected to the center of the synchronous wheel base by a connecting bolt set in the center, the joint of the two is placed in the through hole at the upper part of the rocker arm, and a small bearing is fitted between the joint of the two and the through hole of the rocker arm.

[0010] Preferably, the elastic component includes a spring and a spring retaining ring; the elastic component is disposed between the spring linkage seat and the spring linkage chuck; the opposite surfaces of the spring linkage seat and the spring linkage chuck are respectively provided with spring mounting holes of the same layout and structure; the outer circumferential surfaces of the spring linkage seat and the spring linkage chuck are provided with set screw mounting holes corresponding to the mounting hole positions; the two ends of the spring are respectively fixedly fitted with spring retaining rings, the spring retaining rings are installed in the spring mounting holes, and are pressed and fixed by set screws in the set screw mounting holes, thereby realizing a soft connection between the spring linkage chuck and the spring linkage seat.

[0011] Preferably, the spring retaining ring is an open ring, with its opening staggered with the set screw mounting hole; a limiting groove is provided on the inner wall of the spring retaining ring.

[0012] Preferably, the number of springs is the same as the number of spring mounting holes; each spring used to connect the spring linkage seat and the spring linkage clamp is a double-layer spring.

[0013] Preferably, a clamping groove is provided on the other side of the spring-driven clamp; the shape and depth of the clamping groove match the free end of the product to be tested, the free end of the product to be tested is embedded in the clamping groove, and swings with the spring-driven clamp.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By using the mechanical linkage of cylinder-rack-gear, the periodic flipping motion (180° reciprocating motion) in actual product use is reproduced, simulating real service conditions and avoiding errors from manual measurement; 2. Under the flexible constraint of the clamp, the product continuously completes the specified movements with the swing arm, simulating the vibration, deformation, running tension and resistance data during use, or directly observing the product failure time, thereby quantifying and verifying the lifespan. 3. The flexible spring connection synchronously plays the roles of "error compensation" and "operating condition fidelity"; it compensates for installation errors to ensure motion consistency, buffers vibrations to restore the true force, and makes the test data closer to the actual use scenario; 4. Stable and reliable: The flexible spring chuck reduces the impact of installation errors and vibrations, avoiding abnormal damage to the product caused by rigid impacts during the testing process. This protects the test piece and ensures the stable operation of the testing process. 5. Flexible and adaptable, modular design and flexible connection: By adjusting cylinder parameters and chuck accessories, it can be compatible with the testing of different specifications of the same type of products. One device can cover the verification needs of multiple categories and improve equipment utilization. Attached Figure Description

[0015] Figure 1 This is an overall structural assembly drawing of this utility model.

[0016] Figure 2 This is a partial structural cross-sectional view of the present invention.

[0017] Figure 3 This is an exploded view of the present invention.

[0018] Figure 4 This is an anatomical view of the present invention.

[0019] Figure 5 This is a schematic diagram of the elastic component structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the connection structure between the auxiliary unit and the execution unit in this year's invention.

[0021] In the diagram: 1. Product to be tested; 2. Cylinder; 3. Cylinder bracket; 4. Small bearing; 5. Set screw; 6. Synchronous pulley base; 7. Synchronous belt; 8. Upper synchronous pulley; 9. Synchronous belt baffle; 10. Gear base; 11. Main bracket; 12. Gear; 13. Rack; 14. Bearing assembly; 15. Spring linkage seat; 16. Spring retaining ring; 17. Spring linkage chuck; 18. Main base plate; 19. Screw; 20. Bearing fixing block; 21. Rocker arm; 22. Lower synchronous pulley; 23. Spring mounting hole; 24. Set screw mounting hole; 25. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See appendix Figure 1-6 The flexible connection product testing device disclosed in this utility model includes a cylinder 2, a cylinder bracket 3, a bearing 4, a set screw 5, a synchronous pulley base 6, a synchronous belt 7, a synchronous pulley 8, a synchronous belt baffle 9, a gear base 10, a main bracket 11, a gear 12, a rack 13, an external thread bearing 14, a spring linkage seat 15, a spring 16, a spring retaining ring 17, a spring linkage chuck 18, a main base plate 19, a screw 20, a bearing fixing block 21, a rocker arm 22, a lower synchronous pulley 23, a spring mounting hole 24, a set screw mounting hole 25, and a connecting bolt 26.

[0024] The main base plate 19 supports the swing drive mechanism, the main support 11, and the product to be tested 1. The main support 11 is vertically mounted on one side of the main base plate 19; the swing drive mechanism is mounted on the inner side of the main support 11. The swing arm 22 is a vertically mounted plate, and the swing drive mechanism is connected to the lower part of the swing arm 22; a spring linkage seat 15 is mounted on the swing arm 22, and the spring linkage seat 15 is softly connected to the spring linkage chuck 18 through an elastic component. The free end of the product to be tested 1 is linked with the spring linkage chuck 18.

[0025] In a preferred embodiment, the swing drive mechanism includes a cylinder 2, a gear base 10 mounted on the inner side of the main support 11, and a bearing assembly 14. The cylinder 2 is mounted on the main base plate 19 via a cylinder bracket 3. The bearing assembly 14 is disposed on the main support 11 below the gear base 10. A bearing mounting seat 21 is mounted on the gear base 10 via bolts or other connecting components. The bearing assembly 14 is mounted on the bearing mounting seat 21 via movable connecting components. The bearing assembly includes multiple freely rotatable bearings.

[0026] A gear 12 is mounted on the gear base 10, and the side of the gear 12 is connected to the lower part of the rocker arm 22. A rack 13 meshes with the gear 12. The rack 13 is mounted on the bearing assembly 14, and the two are in sliding engagement. One end of the rack 13 is connected to the extended end of the cylinder 2, enabling horizontal movement. The cylinder 2 drives the rack 13 to move linearly. After the rack 13 meshes with the gear 12, the gear 12 reciprocates 180 degrees on the gear base 10, and the gear 12 drives the rocker arm 22 connected to it to swing horizontally back and forth.

[0027] As another preferred embodiment, a through groove is provided on the lower surface of the rack 13 along its length, and the upper part of the bearing assembly 14 is placed in the groove. The groove and the bearing assembly cooperate to limit and guide the movement of the rack 13, ensuring smooth linear movement of the rack.

[0028] In another preferred embodiment, the device further includes a synchronization mechanism disposed on the outside of the main support 11. The synchronization mechanism includes a synchronization belt 7, a synchronization pulley 8, and a synchronization pulley base 6.

[0029] As a preferred embodiment, the synchronous pulley includes an upper synchronous pulley 8 and a lower synchronous pulley 23. The upper synchronous pulley 8 is mounted on the upper part of the rocker arm 22 via a synchronous pulley base 6; the lower synchronous pulley 23 is mounted on the outer side of the main support 11 via a rotating connector. A synchronous belt 7 is fitted between the upper synchronous pulley 8 and the lower synchronous pulley 23, and the synchronization mechanism is used to assist in transmission or change direction.

[0030] In another preferred embodiment, the elastic component includes a spring 16 and a spring retaining ring 17. The elastic component is disposed between a spring linkage seat 15 and a spring linkage collet 18. Spring mounting holes 24 with the same layout and structure are respectively provided on the opposite surfaces of the spring linkage seat 15 and the spring linkage collet 18. Set screw mounting holes 25 are provided on the outer circumferential surfaces of the spring linkage seat 15 and the spring linkage collet 18 corresponding to the positions of the spring mounting holes 24. Spring retaining rings 17 are fixedly fitted at both ends of the spring 16. The spring retaining rings 17 are installed in the spring mounting holes 24 and are pressed and fixed by set screws 5 in the set screw mounting holes 25, thereby achieving a soft connection between the spring linkage collet 18 and the spring linkage seat 15.

[0031] The spring linkage seat 15 is connected to the center of the synchronous pulley base 6 by the connecting bolt 26 set in the center. The joint of the two is placed in the through hole on the upper part of the rocker arm 22, and a small bearing 4 is fitted between the joint of the two and the through hole of the rocker arm 22.

[0032] As a preferred technical solution, the spring retaining ring 17 is an open ring, with its opening staggered with the set screw mounting hole 25. A limiting groove is provided on the inner wall of the spring retaining ring 17. The number of springs 16 is the same as the number of spring mounting holes 24; each spring used to connect the spring linkage seat 15 and the spring linkage clamp 8 is a double-layer spring.

[0033] As another preferred technical solution, a clamping groove 18-1 is provided on the other side of the spring linkage clamp 18; the free end of the product 1 to be tested is a faucet spout. The shape and depth of the clamping groove 18-1 match the faucet spout, the faucet spout is embedded in the clamping groove 18-1, and swings with the spring linkage clamp 18.

[0034] In this embodiment, the clamping groove 18-1 is a long groove with a semi-circular shape, and the faucet spout is a cylinder. The faucet spout is inserted into the clamping groove 18-1 from below and is in close contact with it. During the swinging process, the spring-driven clamp 18 swings back and forth within a 180-degree range. According to the actual testing needs, the shape and depth of the clamping groove 18-1 can be adjusted according to the shape of the free end of the specific product to be tested.

[0035] The main base plate 1 has multiple through holes for mounting the bottom of the product to be tested. In this embodiment, the fatigue limit or service life of the rotational relationship between the water outlet of the faucet and the central shaft (i.e., position A in the figure) needs to be tested. Therefore, the water inlet end of the faucet is installed on the through hole and fixed, and the position of the water outlet of the faucet is also relatively fixed. When the water outlet of the faucet is inserted into the clamping groove, it also puts a certain amount of compression on the spring between the spring linkage seat 15 and the spring linkage clamp 18, which also improves the stability of the flexible connection of the spring during the swing.

[0036] The working principle of this utility model: Operating principle: The cylinder serves as the power source, and its piston rod performs linear reciprocating motion, driving the rack connected to it to move synchronously; the rack meshes with the gear, converting the linear motion into the gear's 180-degree reciprocating oscillation; the gear is linked to the chuck assembly through the rocker arm, ultimately driving the chuck holding the faucet spout to complete a precise oscillating motion, mimicking the push and pull of a human hand, and meeting the angle adjustment requirements during the testing process.

[0037] Protection against hard damage: The clamp is not rigidly fixed, but rather flexibly connected by a spring. When the clamp contacts and grips the faucet spout, the spring can extend and retract appropriately according to the actual size of the product, adapting to minor dimensional deviations and avoiding rigid compression caused by size mismatch. At the same time, as the clamp swings with the rocker arm, the spring can absorb the vibration and impact generated by the movement, forming a buffer to prevent the fasteners from loosening, ensuring safety and reliability.

Claims

1. A testing device for flexible connection products, characterized in that, include: The main base plate is used to support the swing drive mechanism, the main support, and the product to be tested. The main support is vertically mounted on one side of the main base plate; a swing drive mechanism is installed on the inner side of the main support. A swing arm and a swing drive mechanism are connected to the lower part of the swing arm; a spring linkage seat is installed on the upper part of the swing arm, and the spring linkage seat is softly connected to the spring linkage chuck through an elastic component; the free end of the product to be tested is linked with the spring linkage chuck.

2. The flexible connection product testing device according to claim 1, characterized in that, The swing drive mechanism includes a cylinder, as well as a gear base and bearing assembly mounted on the inner side of the main support. The cylinder is mounted on the main base plate via a cylinder bracket. The bearing assembly is located below the gear base; A gear is mounted on a gear base, and the side of the gear is connected to the lower part of the rocker arm; a rack is fitted below the gear and meshes with it; the rack is mounted on the bearing assembly, and the two are in sliding fit; one end of the rack is connected to the protruding end of the cylinder to achieve horizontal movement.

3. The flexible connection product testing device according to claim 2, characterized in that, The lower surface of the rack has a through groove along its length, and the upper part of the bearing assembly is placed in the groove.

4. The flexible connection product testing device according to claim 1, characterized in that, It also includes a synchronization mechanism disposed on the outside of the main support; The synchronization mechanism includes a timing belt, a timing pulley, and a timing pulley base; The synchronizing pulleys include an upper synchronizing pulley and a lower synchronizing pulley; the upper synchronizing pulley is mounted on the upper part of the rocker arm via a synchronizing pulley base; The lower synchronous pulley is mounted on the outer side of the main support via a connector; a synchronous belt is fitted between the upper and lower synchronous pulleys.

5. The flexible connection product testing device according to claim 4, characterized in that, The spring linkage seat is connected to the center of the synchronous wheel base by a connecting bolt set in the center. The joint of the two is placed in the through hole on the upper part of the rocker arm, and a small bearing is fitted between the joint of the two and the through hole of the rocker arm.

6. The flexible connection product testing device according to claim 1, characterized in that, The elastic component includes a spring and a spring retaining ring; The elastic component is disposed between the spring linkage seat and the spring linkage clamp; The opposite surfaces of the spring linkage seat and the spring linkage clamp are respectively provided with spring mounting holes of the same layout and structure; Set screw mounting holes are provided on the outer circumferential surfaces of the spring linkage seat and the spring linkage chuck at the corresponding mounting hole positions; Spring retaining rings are fixedly fitted at both ends of the spring. The spring retaining rings are installed in the spring mounting holes and are pressed and fixed by the set screws in the set screw mounting holes, so as to realize the soft connection between the spring linkage chuck and the spring linkage seat.

7. The flexible connection product testing device according to claim 6, characterized in that, The spring retaining ring is an open ring, with its opening staggered with the set screw mounting hole; a limiting groove is provided on the inner wall of the spring retaining ring.

8. The flexible connection product testing device according to claim 7, characterized in that, The number of springs is the same as the number of spring mounting holes; each spring used to connect the spring linkage seat and the spring linkage clamp is a double-layer spring.

9. The flexible connection product testing device according to claim 1, characterized in that, A clamping groove is provided on the other side of the spring-driven clamp; the shape and depth of the clamping groove match the free end of the product to be tested, the free end of the product to be tested is embedded in the clamping groove, and swings with the spring-driven clamp.

Images