Cellular board tension testing device

Abstract

The utility model discloses a cellular board tension testing device, and relates to the technical field of cellular board tension. The device comprises a clamping device, the clamping device comprises a clamping plate, one side of the clamping plate is fixedly connected with a fixing frame, the inner side of the fixing frame is fixedly connected with a rotating rod, the end, away from the fixing frame, of the rotating rod penetrates through a device sleeve and is rotationally connected with the device sleeve, and a positioning rod is arranged on one side of the device sleeve. A honeycomb plate is arranged on one side of the clamping plate. According to the honeycomb plate positioning device, the pressure of pressing the pressing block is matched with the components such as the fixing rod, the pull rope and the baffle, so that the pressing block drives the screw rod to rotate by pressing the pressing block, the screw rod pulls the pull rope, the pull rope pulls the fixing rod, the fixing rod pulls the honeycomb plate, and the effect of positioning the honeycomb plate is achieved; bubbles between the honeycomb plate and the clamping plate during gluing are avoided, so that test data are more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of honeycomb panel tension, in particular to a honeycomb panel tension testing device. Background Art

[0002] In recent years, with the continuous development of my country's new energy, aviation, construction, transportation and machinery industries, the demand for high-performance composite materials at home and abroad is growing rapidly. Honeycomb panels have been widely used in wind power generation and aerospace industries due to their excellent properties such as small mass, high specific strength and high stiffness. Composite materials such as honeycomb panels will be affected by alternating loads and produce fatigue damage under actual working conditions. Practice has shown that the service life of such products is closely related to their ability to resist bending stress. If the product has a strong ability to resist bending stress, it is not easy for the product to be damaged or broken during use.

[0003] According to a honeycomb panel fatigue test device disclosed (publication number: CN203811470U), the air pressure-activated nut-locked trapezoidal cross-section fixture is installed on the lower base of the fatigue test machine through a vertical test bracket. The air pressure-activated nut-locked trapezoidal cross-section fixture vertically clamps the clamped sample. An eccentric wheel vibrator is provided at the bottom of the clamped sample. The eccentric wheel vibrator is connected to the eccentric wheel and the external frequency converter in sequence. The external frequency converter is turned on by a motor control. The lower part of the clamped sample is connected to a capacitive strain gauge and an eddy current precision displacement sensor respectively. The honeycomb panel holder of the device has a trapezoidal cross-section to avoid damage to the honeycomb panel being tested by the holder. The device is a vertical test system. The sample is placed vertically to ensure that the sample is evenly stressed and avoid test deviations caused by gravity when placed horizontally. However, in the above device, it is difficult to achieve the effect of positioning the honeycomb panel through the cooperation of components such as the fixture and the test bracket, which leads to bubbles being easily generated when applying glue, and inaccurate test data, which needs to be improved. Utility Model Content

[0004] The utility model aims to provide a honeycomb panel tension testing device, which solves the existing problems by pressing a pressure block to drive a lead screw to rotate, so that the lead screw pulls a pull rope, the pull rope pulls a fixed rod, and then the fixed rod pulls the honeycomb panel.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model discloses a honeycomb panel tensile testing device, comprising a clamping device, wherein the clamping device comprises a clamping plate, one side of the clamping plate is fixedly connected with a fixing frame, the inner side of the fixing frame is fixedly connected with a rotating rod, one end of the rotating rod away from the fixing frame penetrates a device sleeve and is rotatably connected with the device sleeve, one side of the device sleeve is provided with a positioning rod, and one side of the clamping plate is provided with a honeycomb panel;

[0007] A limiting device is arranged inside the clamping device, and the limiting device includes a fixing rod, a through hole is provided on the side of the clamping plate away from the honeycomb panel, the fixing rod is arranged inside the through hole, one end of the fixing rod is fixedly connected to the side of the honeycomb panel close to the clamping plate, a pull rope is fixedly connected to the end of the fixing rod away from the honeycomb panel, a baffle is fixedly connected to the side of the clamping plate away from the honeycomb panel, a screw rod is rotatably connected to one side of the baffle, the pull rope is fixedly connected to the end away from the fixing rod, a pressure block is fixedly connected to the circumferential surface of the screw rod, a fixing block is fixedly connected to the side of the clamping plate away from the honeycomb panel, a sliding groove is provided on one side of the fixing block, a spring is fixedly connected to the inner wall of the sliding groove, and a slider is fixedly connected to the end of the spring away from the sliding groove.

[0008] Furthermore, the fixing frame is in a U-shape, a side of the fixing frame away from the positioning rod is arranged in an arc shape, and a through hole is provided on the circumferential surface of the positioning rod. The above design is conducive to limiting the rotating rod.

[0009] Furthermore, there are two baffles, which are symmetrical to each other along the vertical center axis of the clamping plate, and there are two springs, which are symmetrical to each other along the vertical center axis of the fixing block. The above design is conducive to limiting the screw rod through the baffle.

[0010] Furthermore, a convenient installation mechanism is provided inside the clamping device, and the convenient installation mechanism includes a U-shaped frame, which is arranged at an end of the positioning rod away from the fixed frame, and a pulling block is arranged on one side of the U-shaped frame, and a long rod is fixedly connected to the side of the pulling block close to the U-shaped frame, and the end of the long rod away from the pulling block passes through the U-shaped frame and is slidably connected to the U-shaped frame, and a short rod is fixedly connected to the end of the long rod away from the pulling block, and a clamping ring is passed through the end of the short rod away from the long rod and is slidably connected to the clamping ring, and a stopper is fixedly connected to the end of the short rod away from the long rod. The above design is conducive to installing the clamping device on the test device.

[0011] Furthermore, one end of the long rod away from the pull block passes through the positioning rod and is slidably connected to the positioning rod. The inner diameter of the clamping ring is larger than the diameter of the short rod, and the diameter of the clamping ring is consistent with the diameter of the long rod. The above design is conducive to positioning the positioning rod through the clamping ring.

[0012] Furthermore, the positioning rod is located inside the U-shaped frame, one side of the clamping ring contacts the U-shaped frame, and the side of the clamping ring away from the U-shaped frame contacts the stopper. The above design is conducive to clamping the hole on the U-shaped frame through the gravity of the clamping ring.

[0013] Furthermore, the slider is slidably connected to the inner wall of the slide groove, the slider is located on the displacement track of the pressing block, and the pull rope is located inside the through hole of the splint. The above design is conducive to the slider limiting the pressing block.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model realizes that by pressing the pressure of the pressing block, the pressing block drives the screw rod to rotate, so that the screw rod pulls the pull rope, the pull rope pulls the fixing rod, and then the fixing rod pulls the honeycomb panel, thereby achieving the effect of positioning the honeycomb panel, avoiding bubbles between the honeycomb panel and the splint when applying glue, and making the test data more accurate.

[0016] 2. The utility model cooperates with the U-shaped frame, the pull block, the long rod and other components through the gravity of the clamping ring, thereby achieving the effect of convenient installation by passing the end of the stopper away from the short rod through the U-shaped frame, and then using the gravity of the clamping ring to make the clamping ring fall down, so that the clamping ring blocks the hole on the U-shaped frame, thereby limiting the positioning rod and the U-shaped frame.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0020] Figure 2 It is a schematic diagram of a three-dimensional structure of a fixed frame of the utility model in cross section;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the cross-section of the splint of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed block of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the U-shaped frame of the utility model in cross-section.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Clamping device; 101. Clamping plate; 102. Fixing frame; 103. Rotating rod; 104. Device sleeve; 105. Positioning rod; 106. Honeycomb panel; 2. Limiting device; 201. Fixing rod; 202. Pull rope; 203. Baffle; 204. Screw rod; 205. Pressing block; 206. Fixing block; 207. Slide groove; 208. Spring; 209. Slider; 3. Convenient installation mechanism; 301. U-shaped frame; 302. Pulling block; 303. Long rod; 304. Short rod; 305. Snap ring; 306. Baffle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 The utility model is a honeycomb panel tensile testing device, comprising a clamping device 1, the clamping device 1 comprising a clamping plate 101, one side of the clamping plate 101 is fixedly connected with a fixing frame 102, the inner side of the fixing frame 102 is fixedly connected with a rotating rod 103, one end of the rotating rod 103 away from the fixing frame 102 penetrates a device sleeve 104, and is rotatably connected with the device sleeve 104, one side of the device sleeve 104 is provided with a positioning rod 105, and one side of the clamping plate 101 is provided with a honeycomb panel 106;

[0028] A limiting device 2 is arranged inside the clamping device 1, and the limiting device 2 includes a fixing rod 201, a through hole is provided on the side of the clamping plate 101 away from the honeycomb panel 106, the fixing rod 201 is arranged inside the through hole, one end of the fixing rod 201 is fixedly connected to the side of the honeycomb panel 106 close to the clamping plate 101, a pull rope 202 is fixedly connected to the end of the fixing rod 201 away from the honeycomb panel 106, a baffle 203 is fixedly connected to the side of the clamping plate 101 away from the honeycomb panel 106, a screw rod 204 is rotatably connected to one side of the baffle 203, the pull rope 202 is fixedly connected to the end away from the fixing rod 201, a pressure block 205 is fixedly connected to the circumferential surface of the screw rod 204, a fixing block 206 is fixedly connected to the side of the clamping plate 101 away from the honeycomb panel 106, a slide groove 207 is provided on one side of the fixing block 206, a spring 208 is fixedly connected to the inner wall of the slide groove 207, and a slider 209 is fixedly connected to the end of the spring 208 away from the slide groove 207.

[0029] The fixing frame 102 is in a U-shape, and a side of the fixing frame 102 away from the positioning rod 105 is arranged in an arc shape. A through hole is provided on the circumferential surface of the positioning rod 105 . The above design is conducive to limiting the rotation rod 103 .

[0030] There are two baffles 203 , which are symmetrical along the vertical center axis of the clamp 101 . There are two springs 208 , which are symmetrical along the vertical center axis of the fixing block 206 . The above design is conducive to limiting the screw rod 204 through the baffle 203 .

[0031] A convenient installation mechanism 3 is arranged inside the clamping device 1, and the convenient installation mechanism 3 includes a U-shaped frame 301. The U-shaped frame 301 is arranged at the end of the positioning rod 105 away from the fixed frame 102, and a pull block 302 is arranged on one side of the U-shaped frame 301. The pull block 302 is fixedly connected to a long rod 303 on the side close to the U-shaped frame 301, and the end of the long rod 303 away from the pull block 302 passes through the U-shaped frame 301 and is slidably connected to the U-shaped frame 301. The end of the long rod 303 away from the pull block 302 is fixedly connected to a short rod 304, and the end of the short rod 304 away from the long rod 303 passes through a retaining ring 305 and is slidably connected to the retaining ring 305, and the end of the short rod 304 away from the long rod 303 is fixedly connected to a stopper 306. The above design is conducive to installing the clamping device 1 on the test device.

[0032] One end of the long rod 303 away from the pull block 302 passes through the positioning rod 105 and is slidably connected to the positioning rod 105. The inner diameter of the snap ring 305 is larger than the diameter of the short rod 304. The diameter of the snap ring 305 is consistent with the diameter of the long rod 303. The above design is conducive to positioning the positioning rod 105 through the snap ring 305.

[0033] The positioning rod 105 is located inside the U-shaped frame 301, one side of the snap ring 305 is in contact with the U-shaped frame 301, and the side of the snap ring 305 away from the U-shaped frame 301 is in contact with the stopper 306. The above design is conducive to the gravity of the snap ring 305 to clamp the hole on the U-shaped frame 301.

[0034] The slider 209 is slidably connected to the inner wall of the slide groove 207 . The slider 209 is located on the displacement track of the pressing block 205 . The pull rope 202 is located inside the through hole of the clamping plate 101 . The above design is conducive to the slider 209 limiting the pressing block 205 .

[0035] A specific application of this embodiment is: the present application presses the pressing block 205 to make the pressing block 205 drive the screw rod 204 to rotate, so that the screw rod 204 pulls the pull rope 202, the pull rope 202 pulls the fixing rod 201, and then the fixing rod 201 pulls the honeycomb panel 106, so as to achieve the effect of positioning the honeycomb panel 106, avoid bubbles between the honeycomb panel 106 and the clamping plate 101 during glue coating, and make the test data more accurate, and then press the slider 209 to retract the slider 209 into the slide groove 2 07, and then press the pressure block 205 to the bottom of the slide groove 207, and then release the slider 209. The slider 209 clamps the pressure block 205 through the reset property of the spring 208, and then passes the end of the stopper 306 away from the short rod 304 through the U-shaped frame 301, and then the gravity of the clamping ring 305 makes the clamping ring 305 fall down, so that the clamping ring 305 blocks the hole on the U-shaped frame 301, and then limits the positioning rod 105 and the U-shaped frame 301, achieving the effect of convenient installation.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. 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 utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A honeycomb panel tensile testing device, comprising a clamping device (1), characterized in that: The clamping device (1) comprises a clamping plate (101), one side of the clamping plate (101) is fixedly connected to a fixing frame (102), the inner side of the fixing frame (102) is fixedly connected to a rotating rod (103), one end of the rotating rod (103) away from the fixing frame (102) passes through a device sleeve (104) and is rotatably connected to the device sleeve (104), one side of the device sleeve (104) is provided with a positioning rod (105), and one side of the clamping plate (101) is provided with a honeycomb panel (106); A limiting device (2) is arranged inside the clamping device (1), and the limiting device (2) comprises a fixing rod (201). A through hole is provided on a side of the clamping plate (101) away from the honeycomb plate (106), and the fixing rod (201) is arranged inside the through hole. One end of the fixing rod (201) is fixedly connected to a side of the honeycomb plate (106) close to the clamping plate (101). A pull rope (202) is fixedly connected to one end of the fixing rod (201) away from the honeycomb plate (106), and a baffle (203) is fixedly connected to one side of the clamping plate (101) away from the honeycomb plate (106). A screw rod (204) is rotatably connected to one side of the baffle (203); an end of the pull rope (202) away from the fixed rod (201) is fixedly connected; a pressure block (205) is fixedly connected to the circumferential surface of the screw rod (204); a fixed block (206) is fixedly connected to one side of the clamp (101) away from the honeycomb panel (106); a slide groove (207) is provided on one side of the fixed block (206); a spring (208) is fixedly connected to the inner wall of the slide groove (207); and a slider (209) is fixedly connected to one end of the spring (208) away from the slide groove (207).

2. A honeycomb panel tensile testing device according to claim 1, characterized in that: The fixing frame (102) is in a U-shape, a side of the fixing frame (102) away from the positioning rod (105) is arranged in an arc shape, and a through hole is provided on the circumferential surface of the positioning rod (105).

3. A honeycomb panel tensile testing device according to claim 2, characterized in that: The number of the baffles (203) is two, and they are symmetrical to each other along the vertical center axis of the clamping plate (101); the number of the springs (208) is two, and they are symmetrical to each other along the vertical center axis of the fixing block (206).

4. A honeycomb panel tensile testing device according to claim 3, characterized in that: The clamping device (1) is provided with a convenient installation mechanism (3) therein, the convenient installation mechanism (3) comprising a U-shaped frame (301), the U-shaped frame (301) being provided at one end of the positioning rod (105) away from the fixing frame (102), a pulling block (302) being provided on one side of the U-shaped frame (301), a long rod (303) being fixedly connected to the side of the pulling block (302) close to the U-shaped frame (301), an end of the long rod (303) away from the pulling block (302) passing through the U-shaped frame (301) and being slidably connected to the U-shaped frame (301), a short rod (304) being fixedly connected to one end of the long rod (303) away from the pulling block (302), a clamping ring (305) passing through one end of the short rod (304) away from the long rod (303) and being slidably connected to the clamping ring (305), and a stopper (306) being fixedly connected to one end of the short rod (304) away from the long rod (303).

5. A honeycomb panel tensile testing device according to claim 4, characterized in that: One end of the long rod (303) away from the pull block (302) passes through the positioning rod (105) and is slidably connected to the positioning rod (105); the inner diameter of the clamping ring (305) is greater than the diameter of the short rod (304); and the diameter of the clamping ring (305) is consistent with the diameter of the long rod (303).

6. A honeycomb panel tensile testing device according to claim 5, characterized in that: The positioning rod (105) is located inside the U-shaped frame (301), one side of the clamping ring (305) is in contact with the U-shaped frame (301), and the side of the clamping ring (305) away from the U-shaped frame (301) is in contact with the stopper (306).

7. A honeycomb panel tensile testing device according to claim 6, characterized in that: The slider (209) is slidably connected to the inner wall of the slide groove (207); the slider (209) is located on the displacement track of the pressing block (205); and the pull rope (202) is located inside the through hole of the clamping plate (101).

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