A kind of insulation layer mechanical property testing equipment

Abstract

The present invention belongs to the field of physical property testing equipment. It is an insulation layer mechanical property testing equipment, including a loading box, a conveying mechanism and a testing mechanism. The loading box is provided with a material cavity, in which multiple sheets to be tested can be stacked in multiple layers, and the material cavity is provided with a discharge port. The conveying mechanism includes a first pick-up part, a second pick-up part, a driving part and a moving part. The first end of the first pick-up part and the second end of the second pick-up part contact with the sheet material and can generate a clamping force, an adsorption force or an adhesion force on the sheet material. The driving part drives the first pick-up part and the second pick-up part to rotate through a transmission structure. When picking up the material, the first pick-up part and the second pick-up part rotate in opposite directions and reduce the distance between the first end and the second end. After the sheet material is taken out from the material cavity, it is moved to the clamping position of the testing mechanism through the moving part. The testing mechanism clamps the sheet material and then performs a performance test. A single sheet material is taken out by the picking part, and the performance test can be performed by transferring it to the clamping position of the testing mechanism through the moving part.

Description

Technical Field

[0001] The invention belongs to the field of material physical property testing equipment, and in particular relates to an insulation layer mechanical property testing equipment. Background Art

[0002] As the carrier of power transportation, it is the responsibility of power and cable workers to ensure the safe operation and use of power cables. Failure of medium and high voltage power cables may cause large-scale power outages and bring economic losses. Therefore, quality inspection is an important link to ensure that the cables have no quality problems. Among them, the mechanical property inspection of the insulation layer is particularly important. According to the requirements of the national standard "GB / T 2951.11-2008 / IEC 60811-1-1:2001 General test methods for insulation and sheath materials of electric and optical cables Part 11: General test methods-mechanical property tests", multiple dumbbell specimens need to be made for testing.

[0003] According to national standards, dumbbell specimens are not only small in size, but also very thin, usually not exceeding 2mm, and generally larger than 0.8mm. When such small thin sheet structures are stacked together, adjacent dumbbell specimens are easy to adhere to each other, making it difficult to achieve automatic clamping. However, in order to improve detection efficiency, reduce labor costs, and reduce the impact of human interference factors on measurement results, it is necessary to develop a set of insulation layer mechanical property testing equipment. The equipment needs to be able to automatically complete the mechanical property testing of the insulation layer dumbbell specimens and reduce the intervention of human factors. Such equipment will greatly improve detection efficiency and provide reliable test results. Summary of the invention

[0004] In view of the above-mentioned prior art, the purpose of the present invention is to provide an insulation layer mechanical property testing device to solve the problem of automatic clamping and feeding, and achieve the effect of one-time feeding and continuous testing.

[0005] The technical solution of the present invention is implemented as follows: an insulation layer mechanical properties testing device, including a loading box, a conveying mechanism and a testing mechanism, the loading box is provided with a material cavity, in which multiple sheets to be tested can be stacked in multiple layers, the material cavity is provided with a discharge port, the conveying mechanism includes a first picking part, a second picking part, a driving part and a moving part, the first end of the first picking part and the second end of the second picking part contact with the sheet material and can generate a clamping force, an adsorption force or an adhesion force on the sheet material, the driving part drives the first picking part and the second picking part to rotate through a transmission structure, when picking up materials, the first picking part and the second picking part rotate in opposite directions and reduce the distance between the first end and the second end, after the sheet material is taken out of the material cavity, it is moved to the clamping position of the testing mechanism through the moving part, and the testing mechanism clamps the sheet material and then performs a performance test.

[0006] The beneficial effect of such design is: even if multiple sheets of material are stacked in the material cavity, the front and rear sheets are slightly stuck together, and the driving part is used to drive the first picking part and the second picking part to rotate in opposite directions. The first end and the second end exert force on the sheet material to make the two ends of the sheet material also rotate in opposite directions, so that the sheet material will bend, and the adjacent sheet material surfaces will be relatively displaced, so that the two sheets that were originally stuck together will separate, and as the rotation continues, the sheet material will be moved out of the material cavity. At this time, a single sheet is separated and transferred to the clamping position of the test mechanism through the moving part for performance testing.

[0007] Furthermore, the sheet material is a standard dumbbell specimen, and the first and second picking parts are negative pressure suction cups that use atmospheric pressure to adsorb on both ends of the dumbbell specimen respectively. The air pressure is used to control the picking and placing to simplify the product structure and respond quickly and sensitively.

[0008] Furthermore, the conveying mechanism includes a picking mechanism and a feeding mechanism. The picking mechanism picks up materials from the discharge port of the loading box by using a first picking part, a second picking part and a driving part. The feeding mechanism transfers the sheet material on the picking mechanism to the clamping position of the testing mechanism by using a moving part. Since the sheet material is generally a dumbbell specimen, the area in the central region of the sheet material is smaller and the area at the two end regions is larger. Therefore, the negative pressure suction cup can generate greater suction force when adsorbing the two ends of the sheet material, so that the adsorption is more stable. However, since the testing mechanism also needs to clamp the two ends of the sheet material, the feeding mechanism can clamp the central region of the sheet material and move it to the clamping position for performance testing.

[0009] Furthermore, the first picking part is provided with a first gear, the second picking part is provided with a second gear, the driving part includes a rotating driving part, a transition gear and a transmission gear, the transition gear is meshed with the first gear, the transmission gear is meshed with the second gear, the transition gear is meshed with the transmission gear, and the rotating driving part directly or indirectly drives the transition gear and / or the transmission gear. Such a design can accurately control the rotation angle, optimize and adjust different sheet materials, and cooperate with the linear moving structure to realize a more ideal curved rotation movement of the sheet material.

[0010] Furthermore, the first picking part is provided with a first rotating arm, the second picking part is provided with a second rotating arm, the first rotating arm is provided with a first rotating axis, the second rotating arm is provided with a second rotating axis, the first rotating arm is extended from the first picking part to the second picking part, the second rotating arm is extended from the second picking part to the first picking part, the first rotating arm is provided with a first strip hole at the center position between the first rotating axis and the second rotating axis, the second rotating arm is provided with a second strip hole at the center position between the first rotating axis and the second rotating axis, the first strip hole and the second strip hole at least partially overlap at the center position and a driving shaft is provided at the overlapping position, the driving shaft is fixed on the linear driving member and moves along a straight line to drive the first rotating arm and the second rotating arm to rotate, so that the design structure is simple and the action speed is fast.

[0011] Furthermore, the loading box is installed vertically so that the sheets are in a horizontal position and are stacked in multiple layers in the vertical direction in the loading box. The loading box is provided with a lifting device to push the sheets to move upward. In this way, the sheets can be placed in the loading box by gravity, and the structure is simple.

[0012] Furthermore, the loading box is horizontally arranged so that the sheets are in a vertical position and are stacked in multiple layers in the horizontal direction in the loading box. Limiting protrusions are provided on both sides of the discharge port of the loading box. The limiting protrusions are provided with a plurality of serrated tooth tips. The distance between the tooth tips on both sides of the discharge port is less than the length of the sheets and gradually decreases in the discharge direction. In this way, the tooth tips can be used to scrape off some sheets that are stuck together, avoiding experimental errors caused by taking out multiple sheets at one time.

[0013] Furthermore, the loading box is provided with a feed port, and the feed port is provided with a driving rod, a top plate, a first push plate, a second push plate and a third push plate, a first elastic member is provided between the top plate and the first push plate, a second elastic member is provided between the top plate and the second push plate, and a third elastic member is provided between the top plate and the third push plate, the second push plate is located between the first push plate and the third push plate and acts on the central area of ​​the sheet material, when the top plate moves the same displacement under the action of the driving rod, the force between the top plate and the second push plate is greater than the force between the top plate and the first push plate, and greater than the force between the top plate and the third push plate, so that the sheet material bends or has a tendency to bend under the action of the first push plate, the second push plate and the third push plate, so that the top plate can be used to completely sheet the material when the material is not taken, and repeated bending of the sheet material can prevent adjacent sheets from sticking together.

[0014] Furthermore, the material picking mechanism is provided with a first sliding track and a first driving member, and the first driving member drives the material picking mechanism to move along the first sliding track, so that it is convenient to pick up the material and transfer it to the designated position.

[0015] Furthermore, a positioning brush is provided on at least one side of the loading box, and the positioning brush is provided with bristles, which abut against the side of the sheet material. The bristles can increase the force on the side of the sheet material, and the bristles can be used to scrape off excess sheet material when multiple sheets of material are stuck together and move. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of an insulation layer mechanical property testing device according to Embodiment 1 of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the main structure of an insulation layer mechanical property testing device according to embodiment 1 of the present invention;

[0018] Figure 3 This is a schematic diagram of a loading box and a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 1 of the present invention;

[0019] Figure 4 This is a schematic diagram of a state before material collection of an insulation layer mechanical property testing device according to Embodiment 1 of the present invention;

[0020] Figure 5 This is a schematic diagram of a state in which a device for testing the mechanical properties of an insulating layer is being fed;

[0021] Figure 6 This is a schematic diagram of a state of a device for testing the mechanical properties of an insulating layer after taking out a material according to Embodiment 1 of the present invention;

[0022] Figure 7 This is a schematic diagram of a dumbbell specimen of an insulation layer mechanical property testing device according to Example 1 of the present invention;

[0023] Figure 8 This is a three-dimensional schematic diagram of a loading box of an insulation layer mechanical property testing device according to Embodiment 1 of the present invention;

[0024] Fig. 9 This is a schematic diagram of the structure of a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 1 of the present invention;

[0025] Fig.10 This is a schematic diagram of the installation of a driving block of an insulation layer mechanical property testing device according to Embodiment 1 of the present invention;

[0026] Fig.11 This is a schematic diagram of a bending state of a dumbbell test piece in a loading box of an insulation layer mechanical property testing device according to Example 1 of the present invention;

[0027] Fig.12 This is a three-dimensional schematic diagram of an insulation layer mechanical property testing device according to Embodiment 2 of the present invention;

[0028] Fig.13 This is a schematic diagram of a loading box and a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 2 of the present invention;

[0029] Fig.14 This is a schematic diagram of a loading box and a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 3 of the present invention;

[0030] Fig.15 This is a schematic diagram of a loading box and a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 4 of the present invention;

[0031] Fig.16 This is a schematic diagram of a loading box and a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 5 of the present invention;

[0032] Fig.17 This is a schematic diagram of the horizontal position of a material taking mechanism of an insulation layer mechanical property testing device according to Example 6 of the present invention;

[0033] Fig.18 This is a schematic diagram of the flipping position of a material taking mechanism of an insulation layer mechanical property testing device according to Embodiment 6 of the present invention;

[0034] Fig.19 This is a cross-sectional schematic diagram of a first piece-taking portion of an insulation layer mechanical property testing device according to Embodiment 7 of the present invention;

[0035] Fig. 20 This is a schematic diagram of a loading box of an insulation layer mechanical property testing device according to Embodiment 7 of the present invention;

[0036] Fig.21 This is a cross-sectional schematic diagram of a first piece-taking portion of an insulation layer mechanical property testing device according to Embodiment 8 of the present invention;

[0037] In the figure: 1, loading box; 2, conveying mechanism; 3, testing mechanism; 4, sheet material; 5, box; 6, display screen; 7, control panel; 8, table; 9, lifting device; 10, material chamber; 11, discharge port; 12, limiting protrusion; 13, tooth tip; 14, feed port; 15, driving rod; 16, top plate; 17, first push plate; 18, second push plate; 19, third push plate; 20, positioning brush; 21, first pick-up part; 22, second pick-up part; 23, driving part; 24, moving part; 2 5. First end; 26. Second end; 27. Air pipe interface; 28. Material taking mechanism; 29. ​​Material feeding mechanism; 30. Brush; 31. First test mechanism; 32. First shell; 33. Second shell; 34. Second test mechanism; 40. Dumbbell specimen; 41. Marking line; 42. Third positioning rod; 43. Left positioning part; 44. Right positioning part; 64. First guide rod; 65. Second guide rod; 66. Third guide rod; 67. First elastic member; 68. Second elastic member; 69. Third elastic member ;70, support part;71, left blade;72, right blade;73, telescopic rod;74, left slide;75, right slide;76, left track;77, right track;78, support seat;79, connecting rod;80, mounting groove;81, positioning seat;92, second driving member;93, third driving member;211, first rotating arm;212, first rotating shaft;213, material taking shell;214, first strip hole;215, second rotating arm;216, second rotating shaft;217, second strip hole; 218, driving shaft; 219, driving block; 220, first gear; 221, second gear; 222, transition gear; 223, rotating driving member; 224, transmission gear; 225, positioning rotating shaft; 280, first hinge shaft; 281, first sliding track; 282, first driving member; 283, linear driving member; 284, fourth driving member; 285, fifth driving member; 286, first inclined slide groove; 287, first driving rod; 288, second driving rod; 289, second hinge shaft. DETAILED DESCRIPTION

[0038] As required, detailed embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are only exemplary of the present invention, and the present invention may be implemented in different or alternative forms. The drawings are not necessarily drawn to scale, and certain features may be exaggerated or reduced to show the details of specific components. Therefore, the specific structural and functional details disclosed herein should not be understood as having a limiting meaning, but only as a representative basis to teach those skilled in the art to adopt the present invention differently. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an insulation layer mechanical property testing device includes a loading box 1, a conveying mechanism 2 and a testing mechanism 3. The loading box 1 is provided with a material chamber 10, in which multiple sheets of sheet materials 4 to be tested can be stacked in multiple layers. The material chamber 10 is provided with a discharge port 11. The conveying mechanism 2 includes a first pick-up part 21, a second pick-up part 22, a driving part 23 and a moving part 24. The first end 25 of the first pick-up part 21 and the second end 26 of the second pick-up part 22 contact with the sheet material 4 and can generate a clamping force, an adsorption force or an adhesion force on the sheet material 4. The driving part 23 drives the first pick-up part 21 and the second pick-up part 22 to rotate through a transmission structure. When picking up materials, the first pick-up part 21 and the second pick-up part 22 rotate in opposite directions and reduce the distance between the first end 25 and the second end 26. After the sheet material 4 is taken out of the material chamber 10, it is moved to the clamping position of the testing mechanism 3 through the moving part 24. The testing mechanism 3 clamps the sheet material 4 and performs a performance test. The performance test is performed in accordance with national standards. The clamping force requires the design of a mechanical structure to clamp the sheet material 4, which requires precise positioning and a very thin blade-shaped clamping part. At least two blade-shaped clamping parts are required to separate the sheet material 4 using a blade structure. Such clamping parts can only act on the two ends of the sheet material 4, that is, the non-test area. Four blade-shaped clamping parts can be set. The adhesion force generally needs to be provided by glue, so it is necessary to frequently add glue to the first end 25 and the second end 26, and the first end 25 and the second end 26 need to act on the non-clamping part. The power source of the rotating drive member of the driving part 23 or the moving part 24 can be one of an electric motor and a hydraulic motor. The power source of the linearly moving drive member can be one of a cylinder, a hydraulic cylinder, a motor with a lead screw or a screw, a motor with a crank slider structure, etc. In addition, electromagnetic force drive is also becoming more and more widely used. Technical personnel in this field can select from existing drive structures as needed.

[0040] Embodiment 1:

[0041] like Figure 1 and Figure 2 As shown, the insulation layer mechanical properties testing equipment is provided with a box body 5, the outer surface of the box body 5 is provided with a display screen 6, a control panel 7, etc., a test table 8 is provided in the central area of ​​the box body 5, and the test table 8 is provided with a loading box 1, a conveying mechanism 2 and a testing mechanism 3.

[0042] like Figure 3 and Figure 7 As shown, the sheet material 4 is a dumbbell specimen 40 of the GB / T 2951.11-2008 / IEC 60811-1-1:2001 standard. The first pick-up portion 21 and the second pick-up portion 22 are negative pressure suction cups that use atmospheric pressure to adsorb on both ends of the dumbbell specimen 40 respectively. The dumbbell specimen 40 is provided with a plurality of marking lines 41. Since the first marking line 41 protrudes a certain height relative to the plane of the dumbbell specimen 40, the first pick-up portion 21 and the second pick-up portion 22 need to adsorb the side without the marking line 41. In addition, the position of the marking line 41 can be properly processed to increase the surface roughness, so that the dumbbell specimen 40 is less likely to stick together. The first and second pickup parts 21 and 22 are provided with trachea interfaces 27 at their tail ends to connect with trachea. The trachea has certain elasticity so that a slight rotation of the first and second pickup parts 21 and 22 will not affect the fixation of the trachea, that is, the trachea can undergo elastic deformation to cope with the rotation. Usually, the first and second pickup parts 21 and 22 rotate about 10-30 degrees, and the optimal value is 15 degrees.

[0043] like Figure 2 As shown, the conveying mechanism 2 includes a material taking mechanism 28 and a feeding mechanism 29. The material taking mechanism 28 takes materials from the discharge port 11 of the loading box 1 by using the first taking part 21, the second taking part 22 and the driving part 23. The feeding mechanism 29 transfers the dumbbell test piece 40 on the material taking mechanism 28 to the clamping position of the testing mechanism 3 by using the moving part 24. The testing mechanism 3 is provided with multiple devices installed on the table 8, including at least a first testing mechanism 31 and a second testing mechanism 34. In order to reduce the occupied space, the testing mechanism 3 stretches the dumbbell test piece 40 in the vertical direction, and multiple testing mechanisms 3 are arranged at the same height in the horizontal direction. The feeding mechanism 29 can be provided with three axial moving tracks of up, down, left, right, front and back to move the dumbbell test piece 40. In addition, a rotating structure can be provided to achieve the effect of rotating the dumbbell test piece 40. In principle, the fewer the movements, the simpler it is. However, the positions of the dumbbell test pieces 40 of the material taking mechanisms 28 with different structures are different, and can be set according to specific circumstances. The table 8 is provided with a positioning seat 81 to install the material picking mechanism 28. In order to reduce the space occupied by the table 8, a mounting groove 80 can be set. The material picking mechanism 28 is partially set under the table 8. There is no specific requirement for the specific position of the material picking mechanism 28, and it can be within the moving range of the feeding mechanism 29.

[0044] like Figure 3 and Figure 4As shown, before picking up materials, the picking mechanism 28 needs to move the first picking part 21 and the second picking part 22 to a position in contact with the dumbbell specimen 40, and use the air valve to control the negative pressure suction cup to start adsorbing the dumbbell specimen 40. This process can be achieved by moving the picking mechanism 28 or the loading box 1. If the picking mechanism 28 is moved, the picking mechanism 28 needs to be provided with a first sliding rail 281 and a first driving member 282. The first driving member 282 drives the picking mechanism 28 to move along the first sliding rail 281. If the loading box 1 is moved, a corresponding structure is set in the loading box 1.

[0045] like Figure 5 As shown, when the material picking mechanism 28 is picking up materials, it is necessary to use the linear drive member 283 to drive the first picking part 21 and the second picking part 22 to rotate in the direction of approaching each other, so that the adsorbed dumbbell specimen 40 will be bent and slowly move away from the loading box 1. When the dumbbell specimen 40 is bent, the dumbbell specimens 40 stuck together will move relatively, so that they are easy to separate. For some softer materials, the first picking part 21 and the second picking part 22 can be moved linearly at the same time when the first picking part 21 and the second picking part 22 are rotated, so that the material picking speed is faster.

[0046] like Figure 6 As shown, after the material is taken, the first picking part 21 and the second picking part 22 need to be relatively moved a certain distance, and then the linear driving part 283 is used to drive the first picking part 21 and the second picking part 22 to rotate in the opposite direction, so that the dumbbell specimen 40 returns to a flat state and can be moved to a specified position as needed.

[0047] like Figure 3 and Figure 8 As shown, the loading box 1 is horizontally arranged so that the dumbbell specimens 40 are in a vertical position and are stacked in multiple layers in the horizontal direction in the loading box 1. The loading box 1 has limiting protrusions 12 on both sides of the discharge port 11. The limiting protrusions 12 are provided with a plurality of sawtooth-shaped tooth tips 13. The distance between the tooth tips 13 on both sides of the discharge port 11 is less than the length of the dumbbell specimen 40 and gradually decreases in the discharge direction. The cross-sections of the sawtooth-shaped tooth tips 13 are all at an acute angle, and the direction of the tooth tips 13 is toward one side of the dumbbell specimen 40. Preferably, the side of the tooth tips 13 close to the dumbbell specimen 40 is parallel to the dumbbell specimen 40, so that it is easier to limit the movement of the redundant dumbbell specimens 40 following the adsorbed dumbbell specimen 40.

[0048] like Figure 3 , Figure 8 and Fig.11As shown, the loading box 1 is provided with a feed port 14, the feed port 14 is provided with a driving rod 15, a top plate 16, a first push plate 17, a second push plate 18 and a third push plate 19, the driving rod 15 can be a hydraulic rod, a first elastic member 67 is provided between the top plate 16 and the first push plate 17, a second elastic member 68 is provided between the top plate 16 and the second push plate 18, a third elastic member 69 is provided between the top plate 16 and the third push plate 19, and the second push plate 18 is located between the first push plate 17 Between the top plate 16 and the third push plate 19 and acting on the central area of ​​the dumbbell specimen 40, when the top plate 16 moves the same displacement under the action of the driving rod 15, the force between the top plate 16 and the second push plate 18 is greater than the force between the top plate 16 and the first push plate 17, and greater than the force between the top plate 16 and the third push plate 19, so that the dumbbell specimen 40 bends or has a tendency to bend under the action of the first push plate 17, the second push plate 18 and the third push plate 19. Fig.11 The dumbbell specimen 40 is shown in the bending state, and the flat state can be restored by retracting the top plate 16. The first elastic member 67, the second elastic member 68 and the third elastic member 69 can all be springs, and the elastic force of the second elastic member 68 is the largest, or multiple second elastic members 68 are provided, so that the force of the second push plate 18 is also the largest. The first elastic member 67, the second elastic member 68 and the third elastic member 69 can also be elastic members such as air springs and rubber springs. In order to ensure the accuracy of the moving position, the first push plate 17 is provided with a first guide rod 64, the second push plate 18 is provided with a second guide rod 65, and the third push plate 19 is provided with a third guide rod 66.

[0049] like Figure 3 , Fig. 9 and Fig.10As shown, the first picking part 21 is provided with a first rotating arm 211, the second picking part 22 is provided with a second rotating arm 215, the first rotating arm 211 is provided with a first rotating shaft 212, the second rotating arm 215 is provided with a second rotating shaft 216, the first rotating shaft 212 and the second rotating shaft 216 are arranged on the picking shell 213, the first rotating shaft 212 and the second rotating shaft 216 are located outside the first picking part 21 and the second picking part 22, the first rotating arm 211 is extended from the first picking part 21 to the second picking part 22, and the second rotating arm 215 is extended from the second picking part 22 The first rotating arm 211 is extended to the first piece picking part 21, and a first strip hole 214 is provided at the center position between the first rotating shaft 212 and the second rotating shaft 216. The second rotating arm 215 is provided with a second strip hole 217 at the center position between the first rotating shaft 212 and the second rotating shaft 216. The first strip hole 214 and the second strip hole 217 at the center position at least partially overlap and a driving shaft 218 is provided at the overlapping position. The driving shaft 218 is fixed on the linear driving member 283 and moves along a straight line to push the first rotating arm 211 and the second rotating arm 215 to rotate. The linear driving member 283 can be a hydraulic cylinder, a cylinder, or a driving structure that converts the rotation of a motor into a linear movement. For the convenience of installation, the driving shaft 218 is fixed to the driving block 219 in a threaded manner, and one end of the linear driving member 283 is also provided with a thread fixed to the driving block 219.

[0050] Embodiment 2:

[0051] like Fig.12 and 13 As shown, the loading box 1 is installed vertically so that the sheet material 4 is in a horizontal position and is stacked in multiple layers in the vertical direction in the loading box 1. The loading box 1 is provided with a lifting device 9 to push the sheet material 4 to move upward. In order to improve the utilization of space, a slot is opened on the table 8, and part of the loading box 1 is located above the table 8, and the other part is located below the table 8. The lifting device 9 is located below the table 8. The lifting device 9 includes a second driving member 92 and a third driving member 93. The second driving member 92 drives the loading box 1 to move up and down, and the third driving member 93 drives the dumbbell test piece 40 inside the loading box 1 to move. When the dumbbell test piece 40 is reduced, the dumbbell test piece 40 at the bottom needs to be moved up by the third driving member 93. After the material is taken, the material taking mechanism 28 needs to be moved up, or the loading box 1 needs to be moved down, and the downward movement of the loading box 1 needs to be realized by the second driving member 92.

[0052] As shown in Figure 13, the first pickup part 21 is provided with a first gear 220, the second pickup part 22 is provided with a second gear 221, the driving part 23 includes a rotating driving member 223, a transition gear 222 and a transmission gear 224, the transition gear 222 is meshed with the first gear 220, the transmission gear 224 is meshed with the second gear 221, the transition gear 222 is meshed with the transmission gear 224, and the rotating driving member 223 directly or indirectly drives the transition gear 222 and / or the transmission gear 224. The first gear 220, the second gear 221, the transition gear 222 and the transmission gear 224 can be arranged on the same straight line, so that the volume of the gears is minimized, and the positioning rotation shaft 225 of the first gear 220 and the second gear 221 can be arranged as a hollow structure, so that the first pickup part 21 can be connected with the positioning rotation shaft 225, the first pickup part 21 is connected to the air pipe through the positioning rotation shaft 225, and the second pickup part 22 also adopts the same design.

[0053] Embodiment 3:

[0054] like Fig.14 As shown, the difference of this embodiment is that a fourth driving member 284 is provided under the material taking mechanism 28 to drive the material taking mechanism 28 to move up and down, a second driving member 92 is provided under the loading box 1, and a third positioning rod 42 is provided under the dumbbell specimen 40. During the entire test process, the dumbbell specimen 40 at the bottom remains stationary, and the dumbbell specimens 40 are taken out one by one by moving the material taking mechanism 28 and the loading box 1. For other structures, refer to Example 3.

[0055] Embodiment 4:

[0056] like Fig.15 As shown, the difference of this embodiment is that a fourth driving member 284 is provided under the material taking mechanism 28 to drive the material taking mechanism 28 to move up and down, and a third driving member 93 is provided under the dumbbell specimen 40. During the entire test process, the loading box 1 remains stationary, and the test is performed by moving the material taking mechanism 28 and the dumbbell specimen 40. For other structures, refer to Example 3.

[0057] Embodiment 5:

[0058] like Fig.16 As shown, at least one side of the loading box 1 is provided with a positioning brush 20, and the positioning brush 20 is provided with bristles 30, and the bristles 30 abut against the side of the dumbbell test piece 40. The loading box 1 includes a first shell 32 and a second shell 33, and the fifth driving member 285 can drive the first shell 32 to move relative to the second shell 33.

[0059] Embodiment 6:

[0060] like Fig.17 and Fig.18As shown, the difference of this embodiment is that a fourth driving member 284 is provided below the material picking mechanism 28 to drive the material picking mechanism 28 to move up and down, and the fourth driving member 284 includes a first driving rod 287 and a second driving rod 288. The upper ends of the first driving rod 287 and the second driving rod 288 are hinged to the material picking mechanism 28, that is, the material picking mechanism 28 can rotate relative to the first driving rod 287 and the second driving rod 288. A first inclined slide 286 is provided below the material picking mechanism 28, and the first hinge shaft 280 of the first driving rod 287 can only rotate relative to the material picking mechanism 28, and the second hinge shaft 289 of the second driving rod 288 can rotate and slide in the first inclined slide 286, as shown in FIG. Fig.17 As shown, when the second driving rod 288 is at the lowest position, the material taking mechanism 28 is in a horizontal position, the position of the first hinge shaft 280 is higher than the position of the second hinge shaft 289, and the line connecting the first hinge shaft 280 and the second hinge shaft 289 is at a 45 degree angle with the horizontal line. Fig.18 As shown, the second driving rod 288 drives the material taking mechanism 28 to rotate to the highest position, the position of the first hinge axis 280 is lower than the position of the second hinge axis 289, and the line connecting the first hinge axis 280 and the second hinge axis 289 is also at a 45 degree angle with the horizontal line. This design can realize the 90 degree flip function of the material taking mechanism 28 and simplify the design of the feeding mechanism 29.

[0061] Embodiment 7:

[0062] like Fig.19 As shown, the first pick-up part 21 and the second pick-up part 22 adopt the same design, the first pick-up part 21 is provided with a support part 70, a left blade 71 and a right blade 72, the distance between the left blade 71 and the right blade 72 and the support part 70 is equal to the thickness of the dumbbell specimen 40, the left blade 71 is fixed on the left slide 74, the right blade 72 is fixed on the right slide 75, the left slide 74 slides on the left track 76, the right slide 75 slides on the right track 77, the left slide 74 is driven by a cylinder, the right slide 75 is driven by a cylinder, the left track 76, the right track 77 and the support part 70 are fixed on the support seat 78, and the support seat 78 is provided with a connecting rod 79. Other structures can refer to the design of other embodiments.

[0063] like Fig. 20 As shown, the loading box 1 is provided with a left positioning portion 43 and a right positioning portion 44, which are located on both sides of the dumbbell specimen 40 and act on the middle position of the dumbbell specimen 40. The free positions at both ends of the dumbbell specimen 40 can be clamped by the first picking portion 21 and the second picking portion 22.

[0064] Embodiment 8:

[0065] like Fig.21As shown, the first picking part 21 and the second picking part 22 adopt the same design. The first picking part 21 is provided with a support part 70, a left blade 71 and a right blade 72. The left blade 71 and the right blade 72 have blades inclined upward. The distance between the left blade 71 and the right blade 72 and the support part 70 is equal to the thickness of the dumbbell specimen 40. The support part 70 is provided with an adjusting screw to adjust the distance between the support part 70 and the left blade 71 and the right blade 72. The left blade 71 and the right blade 72 have a certain elasticity. The distance between the left blade 71 and the right blade 72 is slightly larger than the width of the dumbbell specimen 40. A telescopic rod 73 is provided at the rear of the support part 70. When taking materials, under the action of the telescopic rod 73, the left blade 71 and the right blade 72 move toward the dumbbell specimen 40 and bend. Under the action of the support part 70, the dumbbell specimen 40 remains flat, so that the left blade 71 and the right blade 72 can only clamp one dumbbell specimen 40. The process of separation by rotation afterwards can refer to other embodiments.

Claims

1. An insulation layer mechanical properties testing device, characterized in that: The invention comprises a loading box (1), a conveying mechanism (2) and a testing mechanism (3); the loading box (1) is provided with a material chamber (10), in which a plurality of sheets (4) to be tested can be stacked in multiple layers; the material chamber (10) is provided with a material outlet (11); the conveying mechanism (2) comprises a first picking-up part (21), a second picking-up part (22), a driving part (23) and a moving part (24); a first end (25) of the first picking-up part (21) and a second end (26) of the second picking-up part (22) are in contact with the sheet (4) and can generate a clamping force, an adsorption force or an adhesion force on the sheet (4); the first end (25) of the first picking-up part (21) and the second end (26) of the second picking-up part (22) are in contact with the sheet (4) and can generate a clamping force, an adsorption force or an adhesion force on the sheet (4); the first end (26) of the first picking-up part (21) and the second end (26) of the second picking-up part (22) are in contact with the sheet (4) and can generate a clamping force, an adsorption force or an adhesion force on the sheet (4); the first end (25) of the first picking-up part (21) and the second end (26) of the second picking-up part (22) are in contact with the sheet (4) and the first end (26) of the first picking-up part (21) and the second end (26) of the second picking-up part (22) are in contact with the sheet (4) and ... The first end (25) and the second end (26) of the second taking part (22) are respectively fixed at two ends of the sheet material (4); the driving part (23) drives the first taking part (21) and the second taking part (22) to rotate in a direction of approaching each other through a transmission structure; when taking materials, the first taking part (21) and the second taking part (22) rotate in opposite directions and reduce the distance between the first end (25) and the second end (26); after the sheet material (4) is taken out of the material chamber (10), it is moved to the clamping position of the testing mechanism (3) through the moving part (24); and the testing mechanism (3) clamps the sheet material (4) and then performs a performance test.

2. The insulation layer mechanical property testing device according to claim 1, characterized in that: The sheet material (4) is a standard dumbbell specimen (40), and the first specimen taking portion (21) and the second specimen taking portion (22) are negative pressure suction cups that utilize atmospheric pressure to adsorb on both ends of the dumbbell specimen (40).

3. The insulation layer mechanical property testing device according to claim 2, characterized in that: The conveying mechanism (2) comprises a material picking mechanism (28) and a material feeding mechanism (29); the material picking mechanism (28) uses the first material picking part (21), the second material picking part (22) and the driving part (23) to pick up material from the discharge port (11) of the loading box (1); and the material feeding mechanism (29) uses the moving part (24) to transfer the sheet material (4) on the material picking mechanism (28) to a clamping position of the testing mechanism (3).

4. The insulation layer mechanical property testing device according to claim 3, characterized in that: The first piece-picking portion (21) is provided with a first gear (220), the second piece-picking portion (22) is provided with a second gear (221), the driving portion (23) comprises a rotating driving member (223), a transition gear (222) and a transmission gear (224), the transition gear (222) meshing with the first gear (220), the transmission gear (224) meshing with the second gear (221), the transition gear (222) meshing with the transmission gear (224), and the rotating driving member (223) directly or indirectly drives the transition gear (222) and / or the transmission gear (224).

5. The insulation layer mechanical property testing device according to claim 3, characterized in that: The first piece picking portion (21) is provided with a first rotating arm (211), the second piece picking portion (22) is provided with a second rotating arm (215), the first rotating arm (211) is provided with a first rotating shaft (212), the second rotating arm (215) is provided with a second rotating shaft (216), the first rotating arm (211) is extended from the first piece picking portion (21) to the second piece picking portion (22), the second rotating arm (215) is extended from the second piece picking portion (22) to the first piece picking portion (21), the first rotating arm (211) is provided at the first rotating shaft (212) ) and the second rotating shaft (216), a first strip hole (214) is provided at a central position between the first rotating shaft (212) and the second rotating shaft (216), and a second strip hole (217) is provided at a central position between the second rotating shaft (216) and the second rotating arm (215), the first strip hole (214) and the second strip hole (217) at least partially overlap at the central position, and a driving shaft (218) is provided at the overlapping position, and the driving shaft (218) is fixed on the linear driving member (283) and moves along a straight line to drive the first rotating arm (211) and the second rotating arm (215) to rotate.

6. The insulation layer mechanical property testing device according to claim 4 or 5, characterized in that: The loading box (1) is installed vertically so that the sheets (4) are in a horizontal position and are stacked in multiple layers in the vertical direction in the loading box (1). The loading box (1) is provided with a lifting device (9) which can push the sheets (4) to move upwards.

7. The insulation layer mechanical property testing device according to claim 4 or 5, characterized in that: The loading box (1) is arranged horizontally so that the sheet materials (4) are in a vertical position and are stacked in multiple layers in the horizontal direction in the loading box (1). Limiting protrusions (12) are provided on both sides of the discharge port (11) of the loading box (1). The limiting protrusions (12) are provided with a plurality of sawtooth-shaped tooth tips (13). The distance between the tooth tips (13) on both sides of the discharge port (11) is less than the length of the sheet materials (4) and gradually decreases in the discharge direction.

8. The insulation layer mechanical property testing device according to claim 7, characterized in that: The loading box (1) is provided with a feeding port (14), and the feeding port (14) is provided with a driving rod (15), a top plate (16), a first pushing plate (17), a second pushing plate (18) and a third pushing plate (19), a first elastic member (67) is provided between the top plate (16) and the first pushing plate (17), a second elastic member (68) is provided between the top plate (16) and the second pushing plate (18), a third elastic member (69) is provided between the top plate (16) and the third pushing plate (19), and the second pushing plate (18) is located between the first pushing plate (17) and the third pushing plate (19). The third push plate (19) is located in the middle and acts on the central area of ​​the sheet (4). When the top plate (16) moves the same amount of displacement under the action of the driving rod (15), the force between the top plate (16) and the second push plate (18) is greater than the force between the top plate (16) and the first push plate (17), and greater than the force between the top plate (16) and the third push plate (19), so that the sheet (4) bends or has a tendency to bend under the action of the first push plate (17), the second push plate (18) and the third push plate (19).

9. The insulation layer mechanical property testing device according to claim 8, characterized in that: The material taking mechanism (28) is provided with a first sliding track (281) and a first driving member (282), and the first driving member (282) drives the material taking mechanism (28) to move along the first sliding track (281).

10. The insulation layer mechanical property testing device according to any one of claims 1 to 5, characterized in that: At least one side of the loading box (1) is provided with a positioning brush (20), the positioning brush (20) is provided with bristles (30), and the bristles (30) abut against the side surface of the sheet material (4).

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