Mechanical properties testing equipment and method for furniture production

Abstract

The invention relates to a mechanical property test technology for furniture, and is used to solve the problem that the detection function of furniture is relatively single and it is inconvenient to detect internal partitions when performing mechanical testing. Specifically, it is a mechanical property test device for furniture production. In the invention, a support rod of a load mechanism is pushed to be close to a connecting rod, so that the load mechanism presents a C shape, and the top surface of the furniture can be bypassed to perform mechanical tests on structures such as partitions inside the furniture, thereby ensuring the accuracy of the results when the partitions are subjected to the furniture mechanical test. During the test, the varistor inside the detection plate unit can test the pressure distribution of the furniture on the ground, and at the same time, a load is applied to the top of the furniture from different directions through a movable hydraulic rod, so as to detect the load bearing capacity of the side of the furniture, and comprehensively detect the mechanical properties of the furniture, thereby solving the problem that the detection function of furniture is relatively single and it is inconvenient to detect internal partitions when performing mechanical testing.

Description

Technical Field

[0001] The invention relates to a mechanical property test technology for furniture, in particular to a mechanical property test device and a method thereof for furniture production. Background Art

[0002] As we all know, furniture needs to undergo various types of mechanical performance tests to determine whether the furniture is qualified from the test results. The furniture mechanical performance test is a test that simulates the strength and bearing capacity of furniture under one-time or repetitive load conditions. According to the normal use frequency of furniture products under predetermined conditions of use, the size of the load and the number of times, a furniture force testing machine is used to evaluate the mechanical properties of the furniture. However, most of the current furniture mechanical performance testing machines are in use. Since the outer frames are basically rectangular, the cylinders used in the test can only be pressed vertically or horizontally, and cannot be applied to furniture with a variety of appearances.

[0003] The patent application with application number CN201621462229.8 is specifically a furniture mechanical testing machine. The patent application proposes a technical solution in which furniture is placed by means of a ramp and a slider so as to achieve the purpose of quickly and conveniently placing the furniture into the testing equipment. However, the solution still has some shortcomings in use. For example, in the solution, when testing furniture, the multiple groups of cylinders used are all arranged vertically or horizontally. Therefore, the mechanical properties of the furniture can only be tested from the vertical and horizontal directions. However, for the sake of beauty and comfort, the appearance of furniture often has inclined surfaces and curved surfaces. When the cylinders in the solution test such inclined surfaces, the contact area is too small. The pressure on the contact surface will be too high, which will affect the experimental results and make them inaccurate. Moreover, the detection device in this scheme can only detect the deformation state of the furniture under stress, and its function is too single. In the process of using furniture, people often pay attention to the pressure distribution of the furniture on the ground when it is under stress and whether the furniture is prone to tilt when it is subjected to pressure outside the center of gravity. In addition, when testing furniture with partitions, the vertical push rod above cannot perform pressure tests on the internal partitions without breaking the outer layer of the furniture. However, if the partition is tested after the outer layer of the furniture is damaged, the structure of the furniture will change, resulting in inaccurate test results, which makes the furniture mechanical testing machine have great limitations.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The present invention pushes the support rod of the load mechanism to be close to the connecting rod, so that the load mechanism presents a C shape, and can bypass the top surface of the furniture to perform mechanical tests on structures such as partitions inside the furniture, thereby ensuring the accuracy of the results of the mechanical test of the partitions. During the test, the furniture is placed on a detection plate, and the varistors inside the detection plate unit can convert the pressure they are subjected to into electrical signals and transmit them to the output device, so as to test the pressure distribution of the furniture on the ground. At the same time, the output ends of the pressing cylinder and the hydraulic rod can be automatically adapted to the outer surface of the furniture through the movably arranged end heads, thereby solving the problems of single detection function, great limitations and inconvenience in detecting internal partitions during mechanical testing of furniture.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A mechanical property testing device for furniture production, comprising a main frame and a bottom plate, wherein the bottom plate is mounted on the lower surface of the main frame, side beams are mounted between the vertical frames of the main frame, a cross beam is slidably connected to the top of the main frame, a sliding sleeve is slidably connected to the outer wall of the cross beam, the sliding sleeve is provided with through holes on both sides of the cross beam, and a load mechanism is inserted into the through holes;

[0008] The load mechanism includes a connecting rod, a support rod, a connecting seat, a clamping block, a spring and a limit block. The upper surface and the lower surface of the connecting seat are both provided with grooves. The connecting rod and the support rod are both connected inside the groove. Multiple groups of connecting rods are sequentially connected end to end through the connecting seat. The top end of the top group of connecting rods is fixedly installed with a limit block. The bottom end of the bottom group of connecting rods is movably connected to a steering mechanism through a shifting layer. A hydraulic rod is movably connected inside the steering mechanism. The side walls of the support rod and the side walls of the connecting seat are both provided with tooth grooves.

[0009] A detection plate is fixedly mounted on the upper surface of the bottom plate, sliding mechanisms are arranged on both sides of the detection plate, an inclined plate is fixedly mounted on one side of the main frame, and the sliding mechanism is movably connected between the bottom plate and the upper surface of the inclined plate.

[0010] As a preferred embodiment of the present invention, the steering mechanism includes a mounting seat, a sliding rod, a rotating shaft, a guide plate, a mounting frame and a mounting plate. The mounting seat is fixedly connected to the lower surface of the connecting seat, the mounting seat is provided with a hole in the vertical direction, and a sliding rod is passed through the hole, the top end of the sliding rod is elastically connected to the mounting seat through a tension spring, the bottom end of the sliding rod is rotatably connected to the upper surface of the guide plate through a rotating shaft, the upper surface of the guide plate is provided with a hole for the hydraulic rod to extend out, a mounting frame is installed around the hole, a mounting plate is fixedly installed on the top of the mounting frame, and the hydraulic rod is fixedly installed on the lower surface of the mounting plate.

[0011] As a preferred embodiment of the present invention, the displacement layer is movably connected to the support rod at the top, and is movably connected to the steering mechanism at the bottom, a cavity is opened inside the displacement layer, a belt is rotatably connected inside the displacement layer, an upper connecting block is fixedly connected to the upper surface of the belt, the upper connecting block is connected to the support rod, a lower connecting block is fixedly connected to the lower surface of the belt, and the lower connecting block is fixedly connected to the steering mechanism at the bottom, a support plate is fixedly installed inside the displacement layer, baffles are fixedly installed on the outer walls of the upper and lower connecting blocks, the upper connecting block is slidably connected to the support plate via the baffle, the lower connecting block is slidably connected to the lower surface of the displacement layer via the baffle, and the top end of the steering mechanism is slidably connected to the bottom end of the displacement layer.

[0012] As a preferred embodiment of the present invention, the side beam rod includes a transverse side beam and a vertical side beam, the transverse side beam is located at both ends of the transverse beam, and the vertical side beam is slidably connected to the main frame on both sides of the transverse beam through a sliding seat, the outer walls of the side beam rods are slidably connected to the side beam cylinders through slide rails, and a rotating frame is provided at the top of the output shaft of the side beam cylinder, a clamping rod is fixedly installed inside the rotating frame, a universal shaft is clamped and connected between the two groups of clamping rods, a pressing cylinder is passed through the middle of the universal shaft, and the pressing cylinder is connected to the side wall of the rotating frame through a return spring, and the detection plate is composed of a plurality of detection units for detecting pressure.

[0013] As a preferred embodiment of the present invention, the sliding mechanism includes a slide plate, a slide seat and a slider. Two smooth rails are provided on the upper surface of the base plate. The cross-section of the smooth rail is narrow at the top and wide at the bottom. The slider is slidably connected inside the smooth rail. The slide seat is fixedly installed on the upper surface of the slider. A slide plate is clamped and connected between the two groups of slide seats. The slide plate is located above the detection plate.

[0014] As a preferred embodiment of the present invention, the connecting rod has a rectangular cross section, the supporting rod has a circular cross section, the connecting rod is fixedly connected in a groove inside the connecting seat, and the supporting rod is slidably connected in the groove inside the connecting seat.

[0015] As a preferred embodiment of the present invention, the upper surface of the beam is rotatably connected with a driving wheel and a driven wheel through a bearing seat, the driven wheel is meshed with the connecting rod, the driving wheel is meshed with the connecting rod on the other side, the driven wheel is meshed with the driving wheel, the driving wheel is driven by a motor, and the motor is fixedly mounted on the upper surface of the beam.

[0016] As a preferred embodiment of the present invention, circular holes are opened on both sides of the connecting seat, and a spring is fixedly connected to the circular hole, a clamping block is fixedly installed at one end of the spring, and the clamping block is elastically connected to the inner wall of the connecting seat through the spring, two groups of the clamping blocks are symmetrically arranged inside the connecting seat, and one side of the clamping block is connected to the support rod.

[0017] As a preferred embodiment of the present invention, an inclined plate is fixedly installed at one end of the main frame, an inclined slide rail is provided on the upper surface of the inclined plate, the inclined slide rail and the smooth rail are located on the same plane, the cross-section of the end of the smooth rail close to the inclined slide rail is rectangular, the cross-section of the inclined slide rail is rectangular, and a blocking block is provided at the bottom end of the inclined slide rail.

[0018] A method for using a mechanical properties testing device for furniture production, comprising the following steps:

[0019] Step 1: The lift starts, driving the horizontal side beam to rise. After the horizontal side beam rises to the top, the vertical side beam is pushed to the end of the main frame away from the inclined plate, and then the slider is slid so that the slider drives the sliding mechanism to move to the lowest point of the inclined plate;

[0020] Step 2: Place the furniture to be inspected on the slide board on the inclined board, and move the furniture to be inspected by the slide board. After the furniture slides to the top of the inspection board, the elevator drives the horizontal side beam close to the inclined board to the middle height of the furniture, and the cylinder extends and hits the outer wall of the furniture, and then the slide board moves towards the inclined board. Since the furniture is blocked by the cylinder, the slide board is pulled out from under the furniture and returns to the inclined board;

[0021] Step 3: Adjust the horizontal beam and the vertical beam on the main frame so that the cylinders on the horizontal beam and the vertical beam can abut against the outer wall of the furniture to be tested, and then slide the horizontal beam so that the load mechanism is located above the furniture;

[0022] Step 4: Start the motor, the motor drives the driving wheel to rotate. When the driving wheel rotates, the driven wheel on one side is pushed by the driving wheel and rotates in the opposite direction. The driving wheel and the driven wheel rotate at the same time, and the gear teeth push the tooth groove to move, control the connecting rod to move up and down, and move the hydraulic rod close to the furniture to be tested;

[0023] Step 5: The load mechanism continues to descend, and the steering mechanism at the front end of the load mechanism contacts the top of the furniture. When the guide plate in the steering mechanism contacts the top of the furniture, the guide plate will fit on the top of the furniture along the inclination direction of the upper surface of the furniture, and the hydraulic rod installed above the guide plate will rotate together with the guide plate, so that the hydraulic rod is perpendicular to the upper surface of the furniture;

[0024] Step 6: The hydraulic rod presses down the furniture to test the bearing load of the furniture. At the same time, the pressure of the hydraulic rod is transmitted from the furniture to the detection board. Different detection units in the detection board record the magnitude of the force and transmit it to the output device to detect the pressure of the base of the furniture on the ground when it is under pressure;

[0025] Step 7: When testing the internal partitions of the furniture, move the support rod closer to the connecting rod. The support rod drives the steering mechanism to extend in the opposite direction through the belt inside the shifting layer, so that the top of the shifting layer is in a C shape. Then move the C-shaped gap close to the top plate of the furniture, and the steering mechanism and the hydraulic rod enter the interior of the furniture. The hydraulic rod is started, and the internal partitions of the furniture are pressed by the hydraulic rod;

[0026] Step 8: When testing the mechanical properties of furniture from the side, the side beam cylinder installed on the side beam rod extends, the side beam cylinder drives the rotating frame to extend, the rotating frame drives the pressing cylinder to move to contact the side of the furniture, and the front end of the pressing cylinder contacts the side of the furniture. If the side of the furniture is a plane, the pressing cylinder directly squeezes the side of the furniture. If the side of the furniture is an inclined surface, a point at the front end of the pressing cylinder contacts the furniture first, and tilts under the push of the rear side beam cylinder. When the pressing cylinder is perpendicular to the contact surface, the side beam cylinder stops pushing, and the pressing cylinder is started to load the furniture to test the mechanical properties of the furniture.

[0027] Step 9: Move the crossbeam and the side beam rods multiple times, apply loads to the furniture from different positions, and test the load capacity of the furniture. Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. When conducting mechanical tests on furniture, the load mechanism above can apply load to the furniture from above to test the state of the furniture under load. If it is necessary to conduct tests on the interior of the furniture, the support rod of the load mechanism can be pushed together with the connecting rod to make the load mechanism present a C shape, which can bypass the top surface of the furniture to conduct mechanical tests on the partitions and other structures inside the furniture. When replacing the test part, there is no need to replace the equipment, which effectively reduces the test steps and increases work efficiency. When testing the internal partitions, since the load mechanism bypasses the top of the furniture, there is no need to damage the top of the furniture, thereby restoring the real state of the furniture in use to the greatest extent. The performance of the partitions in the furniture will not be affected by removing the top layer of the furniture, which ensures the accuracy of the results when conducting mechanical tests on the partitions;

[0029] 2. At present, during the use of furniture, since most of the rooms have comfortable floors, and the hardness of the floors is low, it is easy to be pressed by the base of the furniture. Therefore, it is necessary to test the pressure distribution of the furniture on the ground during use. During the test, the furniture is placed on the test board, which is composed of multiple test units. The varistor inside each unit can convert the pressure it receives into an electrical signal and transmit it to the output device. Therefore, when the furniture is loaded, the pressure distribution of the furniture on the ground can be tested. At the same time, the pressure distribution of the furniture on the ground can be tested by adjusting the crossbeam and the sliding sleeve when the furniture is subjected to loads at different positions, so that the test results are more comprehensive and reliable, and it is convenient to improve the furniture according to the test results;

[0030] 3. For the sake of aesthetics or ease of use, the load-bearing structures of many furniture are not flat. During the use of furniture, the stability of furniture is crucial to its safety, and the inclined load-bearing structure makes the furniture bear forces that are not perpendicular to the bottom surface. When testing the stability of furniture, it is necessary to focus on the impact of lateral forces on the stability of furniture. When testing the stability of the force on the top of the furniture, the steering mechanism abuts against the furniture, and according to the angle of the contact surface, the guide plate automatically fits the inclination angle of the top of the furniture, thereby driving the internal hydraulic rod to rotate with the guide plate. Since the hydraulic rod is vertically arranged with the guide plate through the bracket, the hydraulic rod will always remain perpendicular to the contact plane of the furniture, so that the hydraulic rod can push the furniture from different directions. When testing the stability of the lateral force of the furniture, the rotatable pressing cylinder is used to fit the inclined surface of the side surface, thereby more comprehensively and accurately testing the safety of the furniture in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0032] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the load mechanism of the present invention;

[0034] Figure 3 It is a schematic diagram of the sliding structure of the support rod of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the use process of the load mechanism of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the connecting seat of the present invention;

[0037] Figure 6 It is a schematic diagram of the card block structure of the present invention;

[0038] Figure 7 For the present invention Figure 7 The enlarged structural diagram at A in the middle;

[0039] Figure 8 It is a schematic diagram of the displacement layer structure of the present invention;

[0040] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle;

[0041] Fig.10 It is a schematic diagram of the structure of the skateboard of the present invention;

[0042] Fig.11It is a schematic diagram of the inclined plate structure of the present invention;

[0043] Fig.12 It is a schematic diagram of the steering mechanism structure of the present invention;

[0044] Fig.13 It is a schematic diagram of the structure of the rotating frame of the present invention;

[0045] Fig.14 It is a schematic diagram of the structure of the clamping rod of the present invention;

[0046] Fig.15 It is a schematic side view of the displacement layer structure of the present invention.

[0047] In the figure: 1, main frame; 2, cross beam; 3, side beam rod; 301, horizontal side beam; 302, vertical side beam; 4, sliding sleeve; 5, load mechanism; 501, connecting rod; 502, support rod; 503, connecting seat; 504, clamping block; 505, spring; 506, limit block; 6, steering mechanism; 601, mounting seat; 602, sliding rod; 603, rotating shaft; 604, guide plate; 605, mounting frame; 606, mounting plate; 7, detection plate; 8, sliding mechanism; 801 , slide plate; 802, slide seat; 803, slider; 9, inclined plate; 10, sliding seat; 11, smooth rail; 12, inclined slide rail; 13, hydraulic rod; 14, driven wheel; 15, driving wheel; 16, motor; 17, bottom plate; 18, side beam cylinder; 19, rotating frame; 20, clamping rod; 21, universal shaft; 22, pressing cylinder; 23, return spring; 24, belt; 25, support plate; 26, upper connecting block; 27, lower connecting block; 28, baffle; 29, shifting layer. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Embodiment 1:

[0050] See also Figure 1-Figure 9As shown, a mechanical property testing device for furniture production includes a main frame 1 and a bottom plate 17. The main frame 1 is similar to the side line of a rectangular parallelepiped, forming a rectangular parallelepiped frame. A slide groove is provided on the main frame 1, and the slide groove is engaged with the roller in the sliding seat 10, so that the sliding seat 10 slides more stably. The bottom plate 17 is installed on the lower surface of the main frame 1, and the upper surface of the bottom plate 17 is in the same plane as the upper surface of the bottom edge of the main frame 1, and a groove is left at the bottom plate 17 near the bottom edge of the main frame 1, and the groove can facilitate the sliding of the sliding seat 10 on the main frame 1 , side beams 3 are installed between the main frame 1 in the vertical direction, and the side beams 3 are used to install the cylinders in the horizontal direction. The top of the main frame 1 is slidably connected with a crossbeam 2, and the crossbeam 2 is used to hang a sliding sleeve 4 and a load mechanism 5. Both ends of the crossbeam 2 also slide on the main frame 1 through a sliding seat 10. The outer wall of the crossbeam 2 is slidably connected with a sliding sleeve 4, and the width of the sliding sleeve 4 is greater than the width of the crossbeam 2, and is used to install the load mechanism 5. The sliding sleeve 4 is located on both sides of the crossbeam 2 and has through holes, and the through holes are penetrated by the load mechanism 5, and the load mechanism 5 can slide up and down inside the through holes;

[0051] The load mechanism 5 includes a connecting rod 501, a support rod 502, a connecting seat 503, a block 504, a spring 505 and a limit block 506. The upper surface and the lower surface of the connecting seat 503 are both provided with grooves. The connecting rod 501 and the support rod 502 are both connected inside the groove. The external dimensions of the connecting rod 501 are the same as those of the connecting seat 503 to ensure the stability of the connecting rod 501 and the connecting seat 503 when sliding in the sliding sleeve 4. Multiple groups of connecting rods 501 are connected end to end through the connecting seat 503 in sequence, and different lengths can be formulated according to the use requirements. The top of the top group of connecting rods 501 is fixedly installed with a limit block 506, and the bottom of the bottom group of connecting rods 501 is movably connected to a hydraulic rod 13 through a steering mechanism 6. When the mechanical experiment of the furniture is carried out, the upper load mechanism 5 can apply a load to the furniture from above through the hydraulic rod 13 to test the state of the furniture under the load. The side walls of the support rod 502 and the side walls of the connecting seat 503 are both provided with tooth grooves, and the tooth grooves are equally spaced, so that the driving wheel 15 and the driven wheel 14 can drive the load mechanism 5 to rise or fall, so as to meet the inspection requirements of furniture of different heights;A detection plate 7 is fixedly installed on the upper surface of the bottom plate 17. The cross section of the connecting rod 501 is rectangular, which is convenient for setting the tooth groove and making the tooth groove cooperate with the driving wheel 15 and the driven wheel 14. The cross section of the support rod 502 is circular, which is convenient for sliding in the connecting seat 503. The connecting rod 501 is fixedly connected to the groove inside the connecting seat 503, and the support rod 502 is slidably connected to the groove inside the connecting seat 503. When it is necessary to test the interior of the furniture, the support rod 502 of the load mechanism 5 can be pushed to be close to the connecting rod 501, so that the load mechanism 5 presents a C shape, which can bypass the furniture. The top surface of the furniture is used to perform mechanical tests on the partitions and other structures inside the furniture. There is no need to replace the equipment, which effectively reduces the test steps and increases the work efficiency. The upper surface of the beam 2 is rotatably connected with a driving wheel 15 and a driven wheel 14 through a bearing seat. The driven wheel 14 is meshed and connected with the connecting rod 501. The driving wheel 15 is meshed and connected with the connecting rod 501 on the other side. The up and down movement of the connecting rod 501 can be controlled by rotating the driving wheel 15 and the driven wheel 14. The driving wheel 15 is driven by a motor 16, which is fixedly installed on the upper surface of the beam 2. The motor 16 has a shaft locking function, which can make the motor When the machine 16 is not started, the output shaft of the motor 16 will not be pushed and rotated, the upper part of the shift layer 29 is movably connected to the support rod 502, and the lower part is movably connected to the steering mechanism 6. The shift layer 29 is internally rotatably connected with the belt 24, and the upper connecting block 26 is fixedly connected to the upper surface of the belt 24. The upper connecting block 26 is connected to the support rod 502, and the belt 24 is driven to rotate by the movement of the support rod 502. The lower surface of the belt 24 is fixedly connected to the lower connecting block 27. When the belt 24 rotates, the lower connecting block 27 can be driven to rotate. The lower connecting block 27 is fixedly connected to the steering mechanism 6 at the bottom. When the lower connecting block 27 rotates The steering mechanism 6 can be driven to translate. A support plate 25 is fixedly installed inside the shift layer 29. The outer walls of the upper connecting block 26 and the lower connecting block 27 are fixedly installed with baffles 28. The upper connecting block 26 is slidably connected to the support plate 25 through the baffle 28, so that the upper connecting block 26 can translate stably at a height to avoid moving up and down. The lower connecting block 27 is slidably connected to the lower surface of the shift layer 29 through the baffle 28 to support the lower connecting block 27, ensuring that the lower connecting block 27 does not have too much pulling force on the belt 24. The top of the steering mechanism 6 is slidably connected to the bottom of the shift layer 29, and the steering mechanism 6 itself is also as follows; Fig.15As shown, it is engaged below the displacement layer 29, so that the steering mechanism 6 can be pushed by the lower connecting block 27 to slide horizontally at the bottom of the displacement layer 29 without applying excessive pulling force to the lower connecting block 27. Circular holes are opened on both sides of the connecting seat 503, and a spring 505 is fixedly connected to the inside of the circular hole. A clamping block 504 is fixedly installed at one end of the spring 505. The clamping block 504 is elastically connected to the inner wall of the connecting seat 503 through the spring 505. Two groups of clamping blocks 504 are symmetrically arranged inside the connecting seat 503, and one side of the clamping block 504 is connected to the support rod 502. When testing the internal partition, since the load mechanism 5 bypasses the top of the furniture, there is no need to damage the top of the furniture, thereby restoring the actual state of the furniture in use to the greatest extent, and the performance of the partition in the furniture will not be affected by removing the top layer of the furniture, thereby ensuring the accuracy of the results when the partition is subjected to furniture mechanical testing.

[0052] Embodiment 2:

[0053] At present, when furniture is in use, it is basically only possible to apply load from above to detect the deformation of furniture, but it is impossible to test the force distribution of furniture. Since most rooms use relatively comfortable floors, and the hardness of the floors is low, it is easy to be pressed by the base of furniture, so it is necessary to test the pressure distribution of furniture on the ground during use;

[0054] See also Figure 10-11 As shown, a mechanical property testing device for furniture production includes a main frame 1 and a bottom plate 17. The main frame 1 is similar to the side line of a cuboid, forming a cuboid frame. A slide groove is provided on the main frame 1, and the slide groove is engaged with the roller in the sliding seat 10, so that the sliding seat 10 can slide more stably. The bottom plate 17 is installed on the lower surface of the main frame 1. The upper surface of the bottom plate 17 and the upper surface of the bottom edge of the main frame 1 are in the same plane, and a groove is left at the position of the bottom plate 17 near the bottom edge of the main frame 1, and the groove can facilitate the sliding seat 10 to slide on the main frame 1. A detection plate 7 is fixedly installed on the upper surface of the bottom plate 17, and the detection plate 7 is used to detect the pressure distribution of the furniture base;

[0055] The sliding mechanism 8 includes a slide plate 801, a slide seat 802 and a slider 803. Two smooth rails 11 are provided on the upper surface of the bottom plate 17. The cross section of the smooth rail 11 is narrow at the top and wide at the bottom, and is in a convex shape. The slider 803 is slidably connected inside the smooth rail 11. The shape of the slider 803 matches the internal size of the cross section of the smooth rail 11. The slide seat 802 is fixedly installed on the upper surface of the slider 803. The two sets of slide seats 802 are connected with the slide plate 801 in a clamping manner. The slide plate 801 is located above the detection plate 7, so that the slide plate 801 can drive the furniture to the top of the detection plate 7, which is convenient for testing the furniture. An inclined plate 9 is fixedly installed at one end of the main frame 1. An inclined rail 12 is provided on the upper surface of the inclined plate 9. The inclined rail 12 and the smooth rail 11 are projected on the same straight line, which is convenient for pushing the furniture from the slope to the bottom plate 17. The cross section of the end of the smooth rail 11 close to the inclined rail 12 is rectangular, which is convenient for the slider 803 to be transferred from the inclined rail 12 to the smooth rail 11 or from the smooth rail 11 to the inclined rail 12. The cross section is rectangular, and a blocking block is provided at the bottom of the inclined slide rail 12 to prevent the slider 803 from falling from the inclined plate 9. The detection plate 7 is composed of a plurality of detection units for detecting pressure. During the test, the furniture is placed on the detection plate 7. The detection plate 7 is composed of a plurality of detection units. The piezoresistors inside each unit can convert the pressure it is subjected to into electrical signals and transmit them to the output device. Therefore, when the furniture is subjected to a load, the pressure distribution of the furniture on the ground can be tested. The ends of the cross beam 2 and the vertical side beam 302 are slidably connected to the outer wall of the main frame 1 through the sliding seat 10. The interior of the sliding seat 10 is connected to the outer wall of the main frame 1 through rollers, and the ends of the cross side beam 301 are slidably connected to the outer wall of the main frame 1 through a lift. At the same time, the cross beam 2 and the sliding sleeve 4 can be adjusted to test the pressure distribution of the furniture on the ground when the furniture is subjected to loads at different positions, so that the test results are more comprehensive and reliable, which is convenient for improving the furniture according to the test structure, and also increases the functional diversity of the furniture mechanical properties test equipment.

[0056] Embodiment three:

[0057] See also Figure 12-14 As shown, a mechanical property testing device for furniture production includes a main frame 1 and a bottom plate 17. The main frame 1 is similar to the side line of a cuboid, forming a cuboid frame. A slide groove is provided on the main frame 1, and the slide groove is engaged with the roller in the sliding seat 10, so that the sliding seat 10 can slide more stably. The bottom plate 17 is installed on the lower surface of the main frame 1. A side beam rod 3 is installed between the vertical frames of the main frame 1. The side beam rod 3 is used to install a horizontal cylinder. A cross beam 2 is slidably connected to the top of the main frame 1. The cross beam 2 is used to hang a sliding sleeve 4 and a load mechanism 5. The sliding sleeve 4 is located on both sides of the cross beam 2 and has through holes, and the through holes are penetrated by the load mechanism 5, and the load mechanism 5 can slide up and down inside the through holes;

[0058] The steering mechanism 6 includes a mounting seat 601, a slide bar 602, a rotating shaft 603, a guide plate 604, a mounting frame 605 and a mounting plate 606. The mounting seat 601 is fixedly connected to the lower surface of the connecting seat 503, and the steering mechanism 6 is connected to the lower part of the load mechanism 5. When the steering mechanism 6 contacts the furniture, the guide plate 604 at the bottom first contacts the surface of the furniture. When the surface of the furniture is horizontal, the guide plate 604 remains horizontal and compresses the tension spring upward. When the surface of the furniture is pressed by starting the hydraulic rod 13, when the surface of the furniture is inclined, one side of the guide plate 604 first contacts the surface of the furniture, and causes the guide plate 604 to tilt. The mounting seat 601 is provided with a hole in the vertical direction, and a slide bar 602 is passed through the hole. The slide bar 602 can slide in the vertical direction of the mounting seat 601. The top of the slide bar 602 is elastically connected to the mounting seat 601 through a tension spring. When the guide plate 604 is tilted, the upwardly tilted end will compress the tension spring and change the angle between the slide bar 602 and the guide plate 604. At the same time, the slide bar 602 moves upward, and a protrusion is provided on the side wall of the slide bar 602. The tension spring is installed above the protrusion. The tension spring can apply elastic force to the slide bar 602 through the protrusion, and the other end of the tension spring abuts against the bottom of the mounting seat 601 to play a supporting role. The top of the slide bar 602 The diameter is enlarged to prevent the slide bar 602 from sliding down from the hole of the mounting seat 601. The bottom end of the slide bar 602 is rotatably connected to the upper surface of the guide plate 604 through the rotating shaft 603. The slide bar 602 always maintains a vertical direction. The angle between the guide plate 604 and the slide bar 602 can be changed. In the natural state, the guide plate 604 and the slide bar 602 remain perpendicular. When the guide plate 604 is tilted to the same angle as the furniture surface, the guide plate 604 is completely in contact with the furniture surface. At this time, the hydraulic rod 13 fixed on the guide plate 604 has also rotated with the guide plate 604 to be perpendicular to the furniture surface, so that the furniture can be pressed vertically, thereby maximizing the pressure. The load condition of the furniture in use is restored to a certain extent. A hole is provided on the upper surface of the guide plate 604 for the hydraulic rod 13 to extend out, so that the hydraulic rod 13 can apply pressure to the furniture. A mounting frame 605 is installed around the hole. The mounting frame 605 is kept perpendicular to the guide plate 604. A mounting plate 606 is fixedly installed on the top of the mounting frame 605. The mounting frame 605 is also kept perpendicular to the mounting plate 606. The hydraulic rod 13 is fixedly installed on the lower surface of the mounting plate 606. The output shaft direction of the hydraulic rod 13 is also perpendicular to the mounting plate 606 and the guide plate 604, and the output shaft of the hydraulic rod 13 is located at the center of the hole in the middle of the guide plate 604.

[0059] When the mechanical properties of the side of the furniture are tested, if the side of the furniture is a vertically set plane, the side beam cylinder 18 directly drives the pressing cylinder 22 to test the side of the furniture. The side beam rod 3 includes a horizontal side beam 301 and a vertical side beam 302. The horizontal side beam 301 is located at both ends of the horizontal beam 2, is shorter in length, and is horizontally set, so that the furniture can enter the main frame 1 from below. The vertical side beam 302 is located on both sides of the horizontal beam 2, is longer in length, and is vertically set. In addition to installing the cylinder, the horizontal side beam 301 and the vertical side beam 302 also have a reinforcement effect on the main frame 1. The horizontal side beam 301 is located at both ends of the horizontal beam 2, and the vertical side beam 302 is slidably connected to the main frame 1 on both sides of the horizontal beam 2 through the sliding seat 10. The outer wall of the side beam rod 3 is slidably connected to the side beam cylinder 18 through the slide rail. The side beam cylinder 18 can move horizontally. If the side of the furniture is not vertical If the furniture surface is a straight plane, the side beam cylinder 18 will first drive the pressing cylinder 22 to contact the furniture surface. Since the furniture surface is inclined, a point at the output end of the pressing cylinder 22 will first contact the surface of the furniture, and a rotating frame 19 is provided at the top end of the output shaft of the side beam cylinder 18. A clamping rod 20 is fixedly installed inside the rotating frame 19. A universal shaft 21 is engaged and connected between the two groups of clamping rods 20. A pressing cylinder 22 is penetrated in the middle of the universal shaft 21, thereby driving the pressing cylinder 22 to rotate between the clamping rods 20, so that the pressing cylinder 22 is tilted until the pressing cylinder 22 is completely perpendicular to the furniture surface, and then the length of the side beam cylinder 18 is fixed, and the furniture surface is tested by the pressing cylinder 22. The pressing cylinder 22 is connected to the side wall of the rotating frame 19 through a return spring 23, so that the pressing cylinder 22 remains horizontal under normal conditions.

[0060] Embodiment 4:

[0061] See also Figure 1-Figure 14 As shown, a method for using a mechanical properties testing device for furniture production comprises the following steps:

[0062] Step 1: The lift is started, driving the horizontal side beam 301 to rise. The rising range is determined according to the furniture to be inspected, ensuring that the furniture can pass under the horizontal side beam 301. After the horizontal side beam 301 is raised to the top, the vertical side beam 302 is pushed to the end of the main frame 1 away from the inclined plate 9 to facilitate the entry of the furniture. Then the slider 803 is slid so that the slider 803 drives the sliding mechanism 8 to move to the lowest point of the inclined plate 9.

[0063] Step 2: Place the furniture to be inspected on the slide plate 801 on the inclined plate 9, and use the slide plate 801 to transport the furniture to be inspected. After the furniture slides to the top of the inspection plate 7, the elevator drives the horizontal side beam 301 close to the inclined plate 9 to descend to the middle height of the furniture, and the cylinder extends and contacts the outer wall of the furniture to fix the position of the furniture so that the furniture cannot move backward. Then, the slide plate 801 is returned to the direction close to the inclined plate 9. Since the furniture is blocked by the cylinder, it cannot be pushed out together with the slide plate 801. The slide plate 801 is pulled out from under the furniture and returns to the inclined plate 9. The furniture slides from the slide plate 801 to the inspection plate 7.

[0064] Step 3: Adjust the horizontal side beam 301 and the vertical side beam 302 on the main frame 1 so that the cylinders on the horizontal side beam 301 and the vertical side beam 302 can abut against the outer wall of the furniture to be tested, and then slide the horizontal beam 2 so that the load mechanism 5 is located above the furniture;

[0065] Step 4: Start the motor 16, the motor 16 drives the driving wheel 15 to rotate. When the driving wheel 15 rotates, the driven wheel 14 on one side is pushed by the driving wheel 15 and rotates in the opposite direction. The driving wheel 15 and the driven wheel 14 rotate at the same time, and the gear teeth push the tooth groove to move, control the connecting rod 501 to move up and down, and move the hydraulic rod 13 close to the furniture to be detected;

[0066] Step 5: The load mechanism 5 continues to descend, and the steering mechanism 6 at the front end of the load mechanism 5 contacts the top of the furniture. When the guide plate 604 in the steering mechanism 6 contacts the top of the furniture, the guide plate 604 is attached to the top of the furniture along the inclination direction of the upper surface of the furniture, and the hydraulic rod 13 installed above the guide plate 604 rotates together with the guide plate 604, so that the hydraulic rod 13 is perpendicular to the upper surface of the furniture;

[0067] Step 6: The hydraulic rod 13 presses the furniture perpendicularly to the contact surface to test the bearing load of the furniture. At the same time, the pressure of the hydraulic rod 13 is transmitted from the furniture to the detection plate 7. Due to the structure of the furniture itself, different detection units are subjected to different pressures. Different detection units in the detection plate 7 record the magnitude of the force and transmit it to the output device to detect the pressure of the base of the furniture on the ground when it is under pressure.

[0068] Step 7: When inspecting the internal partition of the furniture, the support rod 502 is moved closer to the connecting rod 501, and the support rod 502 drives the steering mechanism 6 to extend in the opposite direction through the belt 24 inside the displacement layer 29, so that the upper part of the displacement layer 29 is in a C shape, and then the C-shaped gap is brought close to the top plate of the furniture, and the steering mechanism 6 and the hydraulic rod 13 enter the interior of the furniture, and the hydraulic rod 13 is started to press the internal partition of the furniture through the hydraulic rod 13;

[0069] Step 8: When testing the mechanical properties of the furniture from the side, the side beam cylinder 18 installed on the side beam rod 3 extends, the side beam cylinder 18 drives the rotating frame 19 to extend, and the rotating frame 19 drives the pressing cylinder 22 to move to contact the side of the furniture, and the front end of the pressing cylinder 22 contacts the side of the furniture. If the side of the furniture is a plane, the pressing cylinder 22 directly squeezes the side of the furniture. If the side of the furniture is an inclined surface, a point at the front end of the pressing cylinder 22 contacts the furniture first, and tilts under the push of the rear side beam cylinder 18. When the pressing cylinder 22 is perpendicular to the contact surface, the side beam cylinder 18 stops pushing, and the pressing cylinder 22 is started to load the furniture to test the mechanical properties of the furniture.

[0070] Step nine: Move the cross beam 2 and the side beam 3 several times, apply load to the furniture from different positions, and test the load capacity of the furniture, so that the test result is more accurate and comprehensive.

[0071] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanical property testing device for furniture production, comprising a main frame (1) and a bottom plate (17), wherein the bottom plate (17) is mounted on the lower surface of the main frame (1), side beams (3) are mounted between the vertical frames of the main frame (1), and a cross beam (2) is slidably connected to the top of the main frame (1), characterized in that: The outer wall of the cross beam (2) is slidably connected to a sliding sleeve (4), the sliding sleeve (4) is provided with through holes on both sides of the cross beam (2), and a load mechanism (5) is inserted into the through holes; The load mechanism (5) comprises a connecting rod (501), a support rod (502), a connecting seat (503), a clamping block (504), a spring (505) and a limit block (506); the upper surface and the lower surface of the connecting seat (503) are both provided with grooves; the connecting rod (501) and the support rod (502) are both connected inside the grooves; a plurality of groups of connecting rods (501) are connected end to end in sequence through the connecting seat (503); the top end of the top group of connecting rods (501) is fixedly mounted with a limit block (506); the bottom end of the bottom group of connecting rods (501) is movably connected to a steering mechanism (6) through a displacement layer (29); the steering mechanism (6) is internally movably connected with a hydraulic rod (13); the side walls of the support rod (502) and the side walls of the connecting seat (503) are both provided with tooth grooves; A detection plate (7) is fixedly mounted on the upper surface of the bottom plate (17), sliding mechanisms (8) are arranged on both sides of the detection plate (7), an inclined plate (9) is fixedly mounted on one side of the main frame (1), and the sliding mechanism (8) is movably connected to the bottom plate (17) and the upper surface of the inclined plate (9); The displacement layer (29) is movably connected to the support rod (502) at the top and to the steering mechanism (6) at the bottom. A cavity is provided inside the displacement layer (29). A belt (24) is rotatably connected inside the displacement layer (29). An upper connecting block (26) is fixedly connected to the upper surface of the belt (24). The upper connecting block (26) is connected to the support rod (502). A lower connecting block (27) is fixedly connected to the lower surface of the belt (24). The upper connecting block (26) and the lower connecting block (27) are fixedly connected to the steering mechanism (6); a support plate (25) is fixedly installed inside the displacement layer (29); baffles (28) are fixedly installed on the outer walls of the upper connecting block (26) and the lower connecting block (27); the upper connecting block (26) is slidably connected to the support plate (25) via the baffle (28); the lower connecting block (27) is slidably connected to the lower surface of the displacement layer (29) via the baffle (28); and the top end of the steering mechanism (6) is slidably connected to the bottom end of the displacement layer (29).

2. The mechanical properties testing equipment for furniture production according to claim 1 is characterized in that: The steering mechanism (6) comprises a mounting seat (601), a slide bar (602), a rotating shaft (603), a guide plate (604), a mounting frame (605) and a mounting plate (606); the mounting seat (601) is fixedly connected to the lower surface of the connecting seat (503); a hole is provided in the vertical direction of the mounting seat (601), and a slide bar (602) is inserted into the hole; the top end of the slide bar (602) is elastically connected to the mounting seat (601) through a tension spring; the bottom end of the slide bar (602) is rotatably connected to the upper surface of the guide plate (604) through the rotating shaft (603); a hole is provided on the upper surface of the guide plate (604) for the hydraulic rod (13) to extend out; a mounting frame (605) is installed around the hole; a mounting plate (606) is fixedly installed on the top end of the mounting frame (605); and the hydraulic rod (13) is fixedly installed on the lower surface of the mounting plate (606).

3. The mechanical properties testing equipment for furniture production according to claim 2, characterized in that: The side beam rod (3) comprises a transverse side beam (301) and a vertical side beam (302), wherein the transverse side beam (301) is located at both ends of the transverse beam (2), and the vertical side beam (302) is slidably connected to the main frame (1) on both sides of the transverse beam (2) through a sliding seat (10), and the outer wall of the side beam rod (3) is slidably connected to the side beam cylinder (18) through a slide rail, and a rotating frame (19) is arranged at the top end of the output shaft of the side beam cylinder (18), and a clamping rod (20) is fixedly installed inside the rotating frame (19), and a universal shaft (21) is engaged and connected between two groups of the clamping rods (20), and a pressing cylinder (22) is passed through the middle of the universal shaft (21), and the pressing cylinder (22) is connected to the side wall of the rotating frame (19) through a return spring (23), and the detection plate (7) is composed of a plurality of detection units for detecting pressure.

4. The mechanical properties testing equipment for furniture production according to claim 3 is characterized in that: The sliding mechanism (8) comprises a slide plate (801), a slide seat (802) and a slider (803); two smooth rails (11) are provided on the upper surface of the bottom plate (17); the cross section of the smooth rail (11) is narrow at the top and wide at the bottom; the slider (803) is slidably connected inside the smooth rail (11); the slide seat (802) is fixedly mounted on the upper surface of the slider (803); a slide plate (801) is snap-fitted and connected between the two groups of slide seats (802); and the slide plate (801) is located above the detection plate (7).

5. The mechanical properties testing equipment for furniture production according to claim 1, characterized in that: The connecting rod (501) has a rectangular cross section, the supporting rod (502) has a circular cross section, the connecting rod (501) is fixedly connected to a groove inside the connecting seat (503), and the supporting rod (502) is slidably connected to the groove inside the connecting seat (503).

6. The mechanical properties testing equipment for furniture production according to claim 4, characterized in that: The upper surface of the cross beam (2) is rotatably connected with a driving wheel (15) and a driven wheel (14) through a bearing seat, the driven wheel (14) is meshedly connected with a connecting rod (501), the driving wheel (15) is meshedly connected with the connecting rod (501) on the other side, the driven wheel (14) is meshedly connected with the driving wheel (15), and the driving wheel (15) is driven by a motor (16), and the motor (16) is fixedly mounted on the upper surface of the cross beam (2).

7. The mechanical properties testing equipment for furniture production according to claim 1, characterized in that: Circular holes are provided on both sides of the connection seat (503), and a spring (505) is fixedly connected inside the circular hole. A clamping block (504) is fixedly installed on one end of the spring (505). The clamping block (504) is elastically connected to the inner wall of the connection seat (503) through the spring (505). Two groups of the clamping blocks (504) are symmetrically arranged inside the connection seat (503), and one side of the clamping block (504) is connected to the support rod (502).

8. The mechanical properties testing equipment for furniture production according to claim 3, characterized in that: An inclined plate (9) is fixedly mounted on one end of the main frame (1), an inclined rail (12) is provided on the upper surface of the inclined plate (9), the inclined rail (12) and the smooth rail (11) are located on the same plane, the cross section of one end of the smooth rail (11) close to the inclined rail (12) is rectangular, the cross section of the inclined rail (12) is rectangular, and a blocking block is provided at the bottom end of the inclined rail (12).

9. A method for using the mechanical properties testing equipment for furniture production as claimed in claim 6, characterized in that: The method for using the mechanical properties testing equipment for furniture production specifically comprises the following steps: Step 1: The elevator is started to drive the horizontal side beam (301) to rise. After the horizontal side beam (301) is raised to the top, the vertical side beam (302) is pushed to the end of the main frame (1) away from the inclined plate (9), and then the slider (803) is slid, so that the slider (803) drives the sliding mechanism (8) to move to the lowest point of the inclined plate (9); Step 2: Place the furniture to be inspected on the slide plate (801) on the inclined plate (9), and move the furniture to be inspected by the slide plate (801). After the furniture slides to the top of the inspection plate (7), the elevator drives the horizontal side beam (301) close to the inclined plate (9) to descend to the height of the middle section of the furniture, and the cylinder extends and contacts the outer wall of the furniture, and then the slide plate (801) is moved in the direction close to the inclined plate (9). Since the furniture is blocked by the cylinder, the slide plate (801) is pulled out from under the furniture and returns to the inclined plate (9); Step 3: Adjust the horizontal side beam (301) and the vertical side beam (302) on the main frame (1) so that the cylinders on the horizontal side beam (301) and the vertical side beam (302) can abut against the outer wall of the furniture to be tested, and then slide the horizontal beam (2) so that the load mechanism (5) is located above the furniture; Step 4: Start the motor (16), the motor (16) drives the driving wheel (15) to rotate, when the driving wheel (15) rotates, the driven wheel (14) on one side is pushed by the driving wheel (15) and rotates in the opposite direction, the driving wheel (15) and the driven wheel (14) rotate at the same time, the gear teeth push the tooth groove to move, control the connecting rod (501) to move up and down, and move the hydraulic rod (13) close to the furniture to be detected; Step 5: The load mechanism (5) continues to descend, and the steering mechanism (6) at the front end of the load mechanism (5) contacts the top of the furniture. When the guide plate (604) in the steering mechanism (6) contacts the top of the furniture, the guide plate (604) is attached to the top of the furniture along the inclination direction of the upper surface of the furniture, and the hydraulic rod (13) installed above the guide plate (604) rotates together with the guide plate (604), so that the hydraulic rod (13) is perpendicular to the upper surface of the furniture; Step 6: The hydraulic rod (13) presses the furniture downward to test the bearing load of the furniture. At the same time, the pressure of the hydraulic rod (13) is transmitted from the furniture to the detection plate (7). Different detection units in the detection plate (7) record the magnitude of the force and transmit it to the output device to detect the magnitude of the pressure of the base of the furniture on the ground when it is under pressure. Step 7: When inspecting the internal partition of the furniture, the support rod (502) is moved closer to the connecting rod (501), and the support rod (502) drives the steering mechanism (6) to extend in the opposite direction through the belt (24) inside the displacement layer (29), so that the upper part of the displacement layer (29) is in a C shape, and then the C-shaped gap is brought closer to the top plate of the furniture, and the steering mechanism (6) and the hydraulic rod (13) enter the interior of the furniture, and the hydraulic rod (13) is started, and the internal partition of the furniture is pressed by the hydraulic rod (13); Step 8: When testing the mechanical properties of the furniture from the side, the side beam cylinder (18) installed on the side beam rod (3) extends, the side beam cylinder (18) drives the rotating frame (19) to extend, and the rotating frame (19) drives the pressing cylinder (22) to move to contact the side of the furniture, and the front end of the pressing cylinder (22) contacts the side of the furniture. If the side of the furniture is a plane, the pressing cylinder (22) directly presses the side of the furniture. If the side of the furniture is an inclined surface, a point at the front end of the pressing cylinder (22) contacts the furniture first, and tilts under the push of the rear side beam cylinder (18). When the pressing cylinder (22) is perpendicular to the contact surface, the side beam cylinder (18) stops pushing, and the pressing cylinder (22) is started to load the furniture, and the mechanical properties of the furniture are tested; Step 9: Move the crossbeam (2) and the side beam (3) several times to apply loads to the furniture from different positions to test the load capacity of the furniture.

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