Computerized mattress spring fatigue tester

Abstract

The utility model provides a computer formula mattress spring fatigue testing machine, including test bench, one end of test bench is spliced and is installed computer desk, the inside of another end of test bench is provided with and places the groove, the both sides of the top of placing groove is provided with test mechanism. Through placing the mattress vertically in the inside of placing groove, and through hand wheel, adjusting screw are to adjusting frame body carries out transverse adjustment, adjusting frame body can extrude mattress, convenient improvement mattress vertical place's stability, convenient through servo motor, rotary rod, eccentric wheel, U type board, fixed cover and square pole to extrusion frame body's reciprocating transverse movement, convenient to mattress fatigue performance test, also can directly install the spring of different specifications in first step body, second step body between, convenient through extrusion mechanism to extrusion frame body's reciprocating adjustment directly to spring fatigue performance test, and this testing machine occupies small area, can improve the practicality of this testing machine.

Description

Technical Field

[0001] This utility model relates to the field of mattress spring fatigue testing technology, specifically a computerized mattress spring fatigue testing machine. Background Technology

[0002] Mattress spring fatigue testing machines typically use a motor to drive an eccentric wheel to rotate, thereby achieving reciprocating compression motion of the springs and testing their fatigue performance.

[0003] Existing mattress spring fatigue testing machines typically test the fatigue performance of the entire mattress directly. For example, the utility model patent for a mattress spring fatigue life testing machine (publication number CN203929373U) includes a base plate with a workpiece positioning device above it, and a workpiece placement area above the positioning device. A fixed frame covers the base plate, and a fixed plate is located on top of the fixed frame, above the center of the workpiece placement area. A testing device is mounted on the fixed plate, comprising a motor, an electric cylinder, and a synchronous pulley assembly. A pressure sensor and a standard pressure block are connected to the lower end of the electric cylinder. The standard pressure block is composed of two hemispheres joined together. This utility model patent directly tests the mattress, resulting in a large footprint for the entire testing machine. Furthermore, it prevents direct fatigue testing of the springs during mattress manufacturing, reducing the machine's practicality.

[0004] Therefore, this utility model provides a computer-controlled mattress spring fatigue testing machine. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a computerized mattress spring fatigue testing machine to solve the problems mentioned in the background section. This invention facilitates fatigue performance testing of mattresses by vertically placing them inside the placement slot and pressing and fixing them with an adjustable frame. It can also directly snap the springs between the first and second step bodies for easy fatigue performance testing. Furthermore, this testing machine has a small footprint, which improves its practicality.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a computer-controlled mattress spring fatigue testing machine, comprising a test frame, a computer desk attached to one end of the test frame, and a placement groove inside the other end of the test frame. Test mechanisms are provided on both sides of the top of the placement groove. The test mechanisms include a compression mechanism, a compression frame, and an adjustment frame. Both the compression frame and the adjustment frame are square in shape. A first step and a second step are fixedly provided on the inner side of the compression frame and the inner top of the adjustment frame, respectively. The central axes of the first step and the second step are on the same horizontal straight line. The adjustment frame is movably installed inside the placement groove via an adjustment screw on one side. The compression frame is in close contact with the top of the test frame.

[0007] Furthermore, a screw hole is provided at the splicing position between the test bench and the computer desk, and a screw is installed inside the screw hole. An all-in-one computer is placed on the top of the computer desk.

[0008] Furthermore, the extrusion mechanism includes a servo motor, which is fixedly installed at the bottom of one end of the test bench. A rotating rod is fixedly installed at the top of the output shaft of the servo motor, and the bottom end of the rotating rod is rotatably installed inside one end of the test bench.

[0009] Furthermore, a fixing plate is fixedly installed on the top of the test bench corresponding to one side of the extrusion frame, and a square rod is fixedly installed at the center of one end of the extrusion frame. The square rod is slidably installed inside the fixing plate.

[0010] Furthermore, the square rod has equidistant pin holes inside one end, and a fixing sleeve is installed on the outer side of one end of the square rod through the pin holes and pins. The pins are inserted into the fixing sleeve and the pin holes.

[0011] Furthermore, a U-shaped plate is fixedly provided at one end of the fixed sleeve, and an eccentric wheel is fixedly installed at the top end of the rotating rod. The eccentric wheel is located above the test bench, and one end of the eccentric wheel is movably located inside the U-shaped plate.

[0012] Furthermore, the adjusting screw is rotatably limited and installed at the center of one end of the adjusting frame, and the adjusting screw is screwed and installed inside the other end of the test bench. A handwheel is fixedly installed at the outer end of the adjusting screw.

[0013] Furthermore, limiting slide rods are symmetrically fixed on the side walls of the front and rear ends of the adjustment frame. One end of the limiting slide rod is slidably installed inside the other end of the test bench, and the limiting slide rod is located on both the front and rear sides of the adjustment screw.

[0014] The beneficial effects of this utility model are as follows: This computer-controlled mattress spring fatigue testing machine places the mattress vertically inside the placement slot and adjusts the frame laterally using a handwheel and adjusting screw. The adjusting frame can compress the mattress, improving its vertical stability. The servo motor, rotating rod, eccentric wheel, U-shaped plate, fixing sleeve, and square rod facilitate the reciprocating lateral movement of the compression frame, enabling fatigue performance testing. It also allows for the direct mounting of springs of different specifications between the first and second steps. Adjusting the frame and second step via the handwheel and adjusting screw allows for spring limiting, improving spring stability. The compression mechanism allows for direct fatigue performance testing of the springs through reciprocating adjustment of the compression frame. Furthermore, the machine has a small footprint, enhancing its practicality. The compression frame, adjusting frame, first step, and second step can limit broken springs, preventing them from flying out and injuring workers. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the computer-controlled mattress spring fatigue testing machine of this utility model;

[0016] Figure 2 This is a front sectional view of the computer-controlled mattress spring fatigue testing machine of this utility model;

[0017] Figure 3 This utility model relates to a computer-controlled mattress spring fatigue testing machine. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a structural diagram of the extrusion mechanism of the computer-controlled mattress spring fatigue testing machine of this utility model;

[0019] Figure 5 This is a structural diagram of the adjustment frame of the computer-controlled mattress spring fatigue testing machine of this utility model;

[0020] Figure 6 This is a cross-sectional view of the adjustment frame of the computer-controlled mattress spring fatigue testing machine of this utility model;

[0021] In the diagram: 1. Test bench; 2. Computer desk; 3. All-in-one computer; 4. Eccentric wheel; 5. U-shaped plate; 6. Fixing sleeve; 7. Square rod; 8. Fixing plate; 9. Extrusion frame; 10. Adjustment frame; 11. Limiting slide bar; 12. Adjusting screw; 13. Handwheel; 14. Placement slot; 15. Servo motor; 16. First step body; 17. Second step body; 18. Rotating rod; 19. Pin; 20. Pin hole. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1 to 6 This utility model provides a technical solution: a computer-controlled mattress spring fatigue testing machine, including a test frame 1. A computer desk 2 is spliced ​​and installed at one end of the test frame 1, and a placement groove 14 is provided inside the other end of the test frame 1. Test mechanisms are provided on both sides of the top of the placement groove 14. The test mechanisms include a compression mechanism, a compression frame 9, and an adjustment frame 10. The compression frame 9 and the adjustment frame 10 are both square in shape. A first step 16 and a second step 17 are respectively fixedly provided on the inner side of the compression frame 9 and the inner side of the top of the adjustment frame 10. The central axis of 7 is on the same horizontal straight line. The adjusting frame 10 is movably installed inside the placement slot 14 through the adjusting screw 12 provided on one side. The compression frame 9 is in close contact with the top of the test bench 1. The placement slot 14 facilitates the vertical placement of the mattress. By adjusting the adjusting frame 10, the mattress can be compressed and fixed, thereby improving the stability of the mattress and facilitating subsequent spring fatigue testing. It can reduce the floor space of the testing machine and has high practicality. It can also directly snap the springs between the first step body 16 and the second step body 17, which is convenient for direct fatigue testing of the springs.

[0024] In this embodiment, a screw hole is provided at the splicing position of the test bench 1 and the computer table 2, and a screw is installed inside the screw hole. A computer all-in-one machine 3 is placed on the top of the computer table 2. By splicing the computer table 2, it is convenient to fix the computer table 2 and improve the stability of the computer table 2. The computer all-in-one machine 3 can record and collect test data.

[0025] In this embodiment, the extrusion mechanism includes a servo motor 15, which is fixedly installed at the bottom of one end of the test bench 1. A rotating rod 18 is fixedly installed at the top of the output shaft of the servo motor 15. The bottom end of the rotating rod 18 is rotatably installed inside one end of the test bench 1. A fixing plate 8 is fixedly installed on the top of the test bench 1 corresponding to one side of the extrusion frame 9. A square rod 7 is fixedly installed at the center of one end of the extrusion frame 9. The square rod 7 is slidably installed inside the fixing plate 8. Pin holes 20 are equidistantly opened inside one end of the square rod 7. A fixing sleeve 6 is installed on the outer side of one end of the square rod 7 through the pin holes 20 and the pin 19. The pin 19 is inserted into the fixing sleeve 6 and the pin holes 20. A U-shaped plate 5 is fixedly installed at one end of the fixing sleeve 6. A U-shaped plate 5 is fixedly installed at the top of the rotating rod 18. An eccentric wheel 4 is positioned above the test bench 1, with one end movably mounted inside the U-shaped plate 5. A servo motor 15 drives the eccentric wheel 4 to rotate via a rotating rod 18. The eccentric wheel 4, by pressing against the U-shaped plate 5, facilitates the pushing of the fixing sleeve 6 and the square rod 7 to press against the compression frame 9, thereby compressing the mattress or spring. The compression force of the compression frame 9 can be adjusted by sliding the square rod 7 and the fixing sleeve 6, and by inserting the pin 19 into different pin holes 20. This allows for different forces to be used in fatigue testing of the mattress or spring. As the eccentric wheel 4 rotates, the compression frame 9 can return to its original position under the reverse elastic force of the mattress or spring, facilitating continuous fatigue testing. The limiting effect of the square rod 7 and the fixing plate 8 improves the stability of the compression frame 9.

[0026] In this embodiment, the adjusting screw 12 is rotatably mounted at the center of one end of the adjusting frame 10, and the adjusting screw 12 is screwed into the interior of the other end of the test bench 1. A handwheel 13 is fixedly mounted on the outer end of the adjusting screw 12. Limiting slide rods 11 are symmetrically fixed on the side walls of the front and rear ends of the adjusting frame 10. One end of the limiting slide rod 11 is slidably mounted inside the other end of the test bench 1. The limiting slide rods 11 are located on the front and rear sides of the adjusting screw 12. The adjusting screw 12 can be rotated by the handwheel 13. The adjusting frame 10 can be adjusted laterally by the screwed connection between the adjusting screw 12 and the test bench 1. This facilitates the compression of the spring or mattress by the adjusting frame 10 and the second step 17, which can improve the stability of the mattress and spring. The limiting slide rods 11 can limit the adjusting frame 10, thereby improving the stability of the adjusting frame 10.

[0027] When using this computer-controlled mattress spring fatigue testing machine, anchor bolts and angle irons are fixed between the bottom of the test bench 1 and the ground for easy fixation of the device. The computer table 2 is easily fixed to the test bench 1 via screw holes and screws, improving the stability of the computer table 2. An encoder is installed on the top of the test bench 1 on the outside of the rotating rod 18. One rotation of the eccentric wheel 4 will compress the mattress or spring once. The corresponding testing system is installed on the all-in-one computer 3, and the encoder is electrically connected to the all-in-one computer 3. The rotation angle and position of the servo motor 15 detected by the encoder are obtained through the testing system, and the... These data are fed back to the testing system, which adjusts accordingly to achieve precise control over the number of rotations of the servo motor 15. During fatigue testing of the mattress, it is placed vertically inside the placement slot 14, in contact with its left side wall. At this time, the mattress is also in contact with the compression frame 9. Turning the handwheel 13 and adjusting screw 12 causes the adjusting frame 10 to move closer to and compress the mattress through the screw connection between the adjusting screw 12 and the test bench 1. The adjusting frame 10 then causes the limiting slide rod 11 to slide inside the test support 1, improving the stability of the mattress when placed vertically. This is achieved through the servo motor 15... The rotating rod 18 rotates, causing the eccentric wheel 4 to rotate and compress the U-shaped plate 5. The U-shaped plate 5, through the fixing sleeve 6, pin hole 20, and pin 19, causes the square rod 7 to slide within the fixing plate 8. At the same time, the square rod 7 pushes the compression frame 9 to compress the mattress. For fatigue testing of the springs, the two ends of the spring to be tested are aligned with the first step body 16 and the second step body 17. The adjusting frame 10 and the second step body 17 are adjusted using the handwheel 13 and adjusting screw 12, locking the two ends of the spring between the corresponding steps on the first step body 16 and the second step body 17, and the spring is then subjected to... The spring is limited by a servo motor 15, a rotating rod 18, an eccentric wheel 4, a U-shaped plate 5, a fixed sleeve 6, and a square rod 7, which compresses the extrusion frame 9. This allows for direct fatigue performance testing of the spring, and the testing machine has a small footprint, improving its practicality. The extrusion frame 9, the adjusting frame 10, the first step 16, and the second step 17 can limit the spring in case of breakage, preventing it from flying out and injuring workers. The extrusion pressure of the adjusting frame 10 can be easily adjusted by sliding the square rod 7 inside the fixed sleeve 6 and installing the pins 19 inside different pin holes 20.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A computer-controlled mattress spring fatigue testing machine, comprising a test bench (1), characterized in that, A computer desk (2) is spliced ​​and installed at one end of the test bench (1). A placement slot (14) is provided inside the other end of the test bench (1). Test mechanisms are provided on both sides of the top of the placement slot (14). The test mechanisms include a pressing mechanism, a pressing frame (9), and an adjusting frame (10). The pressing frame (9) and the adjusting frame (10) are both square in shape. A first step (16) and a second step (17) are fixedly provided on the inner side of the pressing frame (9) and the inner side of the top of the adjusting frame (10), respectively. The central axes of the first step (16) and the second step (17) are on the same horizontal straight line. The adjusting frame (10) is movably installed inside the placement slot (14) by an adjusting screw (12) provided on one side. The pressing frame (9) is in close contact with the top of the test bench (1).

2. The computer-controlled mattress spring fatigue testing machine according to claim 1, characterized in that: The test bench (1) and the computer desk (2) are joined by screw holes, and screws are installed inside the screw holes. A computer all-in-one machine (3) is placed on the top of the computer desk (2).

3. The computer-controlled mattress spring fatigue testing machine according to claim 1, characterized in that: The extrusion mechanism includes a servo motor (15), which is fixedly installed at the bottom of one end of the test bench (1). A rotating rod (18) is fixedly installed at the top of the output shaft of the servo motor (15), and the bottom end of the rotating rod (18) is limited to rotate and installed inside one end of the test bench (1).

4. The computer-controlled mattress spring fatigue testing machine according to claim 3, characterized in that: A fixing plate (8) is fixedly installed on the top of the test bench (1) corresponding to one side of the extrusion frame (9). A square rod (7) is fixedly installed at the center of one end of the extrusion frame (9). The square rod (7) is slidably installed inside the fixing plate (8).

5. The computer-controlled mattress spring fatigue testing machine according to claim 4, characterized in that: The square rod (7) has pin holes (20) equidistantly opened inside one end. A fixing sleeve (6) is installed on the outer side of one end of the square rod (7) through the pin holes (20) and the pin (19). The pin (19) is inserted into the fixing sleeve (6) and the pin holes (20).

6. The computer-controlled mattress spring fatigue testing machine according to claim 5, characterized in that: A U-shaped plate (5) is fixedly installed at one end of the fixed sleeve (6), and an eccentric wheel (4) is fixedly installed at the top of the rotating rod (18). The eccentric wheel (4) is located above the test bench (1), and one end of the eccentric wheel (4) is movably located inside the U-shaped plate (5).

7. The computer-controlled mattress spring fatigue testing machine according to claim 1, characterized in that: The adjusting screw (12) is rotatably limited and installed at the center of one end of the adjusting frame (10). The adjusting screw (12) is screwed and installed inside the other end of the test bench (1). A handwheel (13) is fixedly installed at the outer end of the adjusting screw (12).

8. The computer-controlled mattress spring fatigue testing machine according to claim 7, characterized in that: Limiting slide rods (11) are symmetrically fixed on the side walls of the front and rear ends of the adjusting frame (10). One end of the limiting slide rod (11) is slidably installed inside the other end of the test bench (1). The limiting slide rod (11) is located on the front and rear sides of the adjusting screw (12).

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