Rubber pressure testing tool

Abstract

The utility model relates to a rubber pressure testing tool which comprises a bottom plate, two vertical rods are installed on the bottom plate and sleeved with a lifting workbench, a hydraulic push rod is further installed on the top of the lifting workbench, and a base plate for placing a rubber block in a matched mode is further arranged on the portion, under the hydraulic push rod, of the bottom plate. The surface of the bottom plate is provided with a T-shaped groove with three end point extension lines intersecting at one point, a clamp is arranged in the T-shaped groove in a sliding mode, the clamp comprises a movable seat and a telescopic clamping plate, the telescopic clamping plate comprises a fixed block and a movable block, the fixed block is arranged in a T shape, the movable block is inserted into the fixed block in an inverted-U shape, the inner side face of the movable block is further connected with an insertion rod, and the insertion rod is connected with the movable block. According to the device, the telescopic clamping plate is matched with the fixed block in an inserted mode through the movable block, a certain height can be kept, the side edge of a rubber block can be supported, the height can be changed along with compression of rubber, and an extrusion test of the rubber is not affected.

Description

Technical Field

[0001] This application relates to the technical field of pressure testing tools, and particularly to a rubber pressure testing tooling. Background Technique

[0002] Shock-Absorbing-Rubber is a material with elastic and damping properties, mainly used to absorb and reduce vibrations and impacts to protect equipment or structures from damage. After the shock-absorbing rubber is processed, it also needs to be tested for pressure, damping, etc.

[0003] However, in actual applications, the rubber pressure testing tooling usually has T-shaped grooves opened on the bottom plate, and clamps are slidably arranged in the T-shaped grooves for clamping and positioning the bottom of the rubber block. However, during the testing process, after the rubber is squeezed, it is easy to deviate and deform from the side, which will affect the test results and is not accurate enough.

[0004] Therefore, those skilled in the art have provided a rubber pressure testing tooling to solve the problems raised in the above background technique. Utility Model Content

[0005] To solve the problems raised in the above background technique, this application provides a rubber pressure testing tooling.

[0006] The rubber pressure testing tooling provided by this application adopts the following technical solutions:

[0007] A rubber pressure testing tooling includes a bottom plate, two vertical rods are installed on the bottom plate, a lifting workbench is sleeved on the two vertical rods, a hydraulic push rod is further installed at the top of the lifting workbench, and a cushion plate for placing the rubber block in cooperation is further provided on the bottom plate directly below the hydraulic push rod. T-shaped grooves with the extension lines of three endpoints intersecting at one point are opened on the surface of the bottom plate, and a clamp is slidably arranged in the T-shaped grooves. The clamp includes a moving seat and a telescopic clamping plate.

[0008] Preferably, the telescopic clamping plate includes a fixed block and a movable block. The fixed block is arranged in a T shape, the movable block is inserted into the fixed block in an inverted U shape, and a plug rod is further connected to the inner side surface of the movable block and is slidably inserted into the fixed block.

[0009] Preferably, support springs are further installed at both ends of the movable block, the bottom ends of the support springs are installed on the fixed block, and a pressure sensor for detecting the pressure of the support springs is further provided on the fixed block.

[0010] Preferably, grooves are further provided on both sides of the fixed block. A trigger gear is installed in the groove. An active rack and a passive rack are respectively engaged on both sides of the trigger gear. The active rack is installed on the inner side surface of the movable block. The passive rack is slidably installed inside the groove. A distance sensor for detecting the passive rack is further installed on the bottom wall of the groove.

[0011] Preferably, clamping grooves adapted to the T-shaped grooves are provided on both side edges of the movable seat. A fixing bolt is threadedly engaged through the movable seat.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. In the present application, the fixture includes a movable seat and a telescopic clamping plate. The telescopic clamping plate is inserted and matched with the fixed block through the movable block, can maintain a certain height, can support the side of the rubber block, and can change the height as the rubber is compressed, without affecting the extrusion test of the rubber.

[0014] 2. In the present application, a trigger gear, an active rack and a passive rack are further arranged between the fixed block and the movable block. When the height of the movable block changes and slides, the active rack can engage and push the trigger gear to rotate, and at the same time push the passive rack to slide. At this time, the displacement sensor can detect the displacement of the passive rack, and thus the compression amount of the rubber can be measured, which is relatively accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 is the present application Figure 1 schematic diagram of the structure of part A;

[0017] Figure 3 is a schematic diagram of the fixture structure in the present application;

[0018] Figure 4 is the present application Figure 3 schematic diagram of the structure of part B.

[0019] Description of the reference numerals: 1, bottom plate; 2, vertical rod; 3, lifting workbench; 4, hydraulic push rod; 5, cushion plate; 6, T-shaped groove; 7, fixture; 701, movable seat; 7011, clamping groove; 7012, fixing bolt; 702, telescopic clamping plate; 7021, movable block; 7022, insertion rod; 7023, support spring; 7024, pressure sensor; 7025, trigger gear; 7026, active rack; 7027, passive rack; 7028, distance sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1

[0022] As Figures 1 - 4 shown, the present application discloses a rubber pressure test tooling, which includes a bottom plate 1. Two vertical rods 2 are installed on the bottom plate 1. A lifting workbench 3 is sleeved on the two vertical rods 2. A hydraulic push rod 4 is further installed at the top of the lifting workbench 3. A cushion plate 5 for cooperatively placing a rubber block is further provided on the bottom plate 1 directly below the hydraulic push rod 4. A T-shaped groove 6 whose three endpoint extension lines intersect at one point is formed on the surface of the bottom plate 1. A clamp 7 is slidably arranged in the T-shaped groove 6. The clamp 7 includes a moving seat 701 and a telescopic clamping plate 702. Claw slots 7011 for cooperating with the T-shaped groove 6 are formed on both side edges of the moving seat 701. A fixing bolt 7012 is also threadedly cooperated and arranged through the moving seat 701.

[0023] Specifically, first place the cushion plate 5 on the bottom plate 1, place the rubber block on the cushion block 5, and then the clamp can be pushed to slide in the T-shaped groove 6 close to the rubber block to position and fix the edge of the rubber block. The telescopic clamping plate 702 in the clamp 7 includes a fixed block and a movable block 7021. The fixed block is arranged in a T shape. The movable block 7021 is inserted into the fixed block in an inverted U shape. An insertion rod 7022 is further connected to the inner side surface of the movable block 7021. The insertion rod 7022 is slidably inserted into the inside of the fixed block. Through the cooperation of the movable block 7021 and the fixed block, the side of the rubber block can be effectively supported. Before the test, the hydraulic push rod 4 first presses down against the top surface of the rubber block. At this time, the movable block 7021 has an initial downward pressure value. During the test, the hydraulic push rod 4 continuously presses down to squeeze the rubber block. At this time, the movable block 7021 follows the rubber block and continues to press down to obtain a second downward pressure value, that is, the compression value of the rubber block.

[0024] Further, in order to accurately measure the compression value of the rubber block, grooves are provided on both sides of the fixed block. A trigger gear 7025 is installed in the groove. An active rack 7026 and a passive rack 7027 are respectively meshed on both sides of the trigger gear 7025. The active rack 7026 is installed on the inner side surface of the movable block 7021. The passive rack 7027 is slidably installed inside the groove. A distance sensor 7028 for detecting the passive rack 7027 is installed on the bottom wall of the groove. During the downward pressing process of the movable block 7021, the trigger gear 7025 can be driven to rotate by the cooperation of the active rack 7026. Due to the cooperation between the trigger gear 7025 and the passive rack 7027, the passive rack 7027 can be pushed to slide. At this time, the second sliding distance of the passive rack 7027 can be measured by the distance sensor 7028 arranged at the bottom, and thus the compression value of the rubber block can be accurately measured.

[0025] As Figure 3 、 Figure 4 shown, supporting springs 7023 are also installed at both ends of the movable block 7021. The bottom ends of the supporting springs 7023 are installed on the fixed block, and a pressure sensor 7024 for detecting the supporting springs 7023 is also arranged on the fixed block. In order to keep the movable block 7021 automatically reset after the test, a supporting spring 7023 is also installed between the end of the movable block 7021 and the fixed block. The movable block 7021 can be pushed to reset by the supporting spring 7023. When the movable block 7021 is pressed downward, the elastic force of the supporting spring 7023 also needs to be overcome. When measuring the damping value of the rubber, the elastic potential energy of the supporting spring 7023 also needs to be deducted. The elastic potential energy of the supporting spring 7023 can be measured according to the pressure sensor 7024 arranged on the fixed block. At this time, subtracting the elastic potential energy of the supporting spring 7023 from the force of the hydraulic push rod 4 can obtain the pressure applied to the rubber block.

[0026] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0027] Meanwhile, the content not described in detail in this specification belongs to the well-known prior art of those skilled in the art.

[0028] The implementation principle of a rubber pressure test tooling in an embodiment of the present application is as follows:

[0029] During use, select a backing plate 5 that fits the size of the rubber block, place the backing plate 5 on the bottom plate 1. Before placing the rubber block on the backing plate 5, install a sensor on the force application point on the surface of the rubber block. Then, the clamp can be pushed to slide in the T-shaped groove 6 close to the rubber block to position and fix the edge of the rubber block. The telescopic clamping plate 702 in the clamp 7 includes a fixed block and a movable block 7021. Through the cooperation of the movable block 7021 and the fixed block, the side of the rubber block can be effectively supported. Before the test, the hydraulic push rod 4 first presses down on the top surface of the rubber block. At this time, the movable block 7021 has an initial downward pressure value. During the test, the hydraulic push rod 4 continuously presses down to squeeze the rubber block. At this time, the movable block 7021 follows the rubber block and continues to press down to obtain a second downward pressure value, which is the compression value of the rubber block.

[0030] In addition, in order to accurately measure the compression value of the rubber block, during the downward pressing of the movable block 7021, the driving rack 7026 can be used to cooperate with and push the trigger gear 7025 to rotate. Due to the cooperation between the trigger gear 7025 and the driven rack 7027, the driven rack 7027 can be pushed to slide. At this time, the second sliding distance of the driven rack 7027 can be measured by the distance sensor 7028 provided at the bottom, and thus the compression value of the rubber block can be accurately measured.

[0031] To keep the movable block 7021 reset automatically after the test, a support spring 7023 is also installed between the end of the movable block 7021 and the fixed block. The support spring 7023 can push the movable block 7021 to reset. When the movable block 7021 is pressed down, it also needs to overcome the elastic force of the support spring 7023. When measuring the damping value of the rubber, the elastic potential energy of the support spring 7023 also needs to be deducted. According to the pressure sensor 7024 provided on the fixed block, the elastic potential energy of the support spring 7023 can be measured. At this time, subtracting the elastic potential energy of the support spring 7023 from the force of the hydraulic push rod 4 can obtain the pressure applied to the rubber block, which makes the test more convenient.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber pressure testing tooling, comprising a bottom plate (1), two vertical rods (2) are installed on the bottom plate (1), a lifting workbench (3) is sleeved on the two vertical rods (2), a hydraulic push rod (4) is further installed at the top of the lifting workbench (3), and a cushion plate (5) for cooperatively placing a rubber block is further provided on the bottom plate (1) directly below the hydraulic push rod (4), characterized in that, The surface of the bottom plate (1) is provided with a T-shaped groove (6) whose three end extension lines intersect at one point. A clamp (7) is slidably arranged in the T-shaped groove (6). The clamp (7) includes a moving seat (701) and a telescopic clamping plate (702).

2. A rubber pressure testing tooling according to claim 1, characterized in that: The telescopic clamping plate (702) includes a fixed block and a movable block (7021). The fixed block is arranged in a T shape. The movable block (7021) is inserted into the fixed block in an inverted U shape. A plug rod (7022) is also connected to the inner side surface of the movable block (7021). The plug rod (7022) is slidably inserted into the fixed block.

3. A rubber pressure test tooling according to claim 2, characterized in that: Support springs (7023) are also installed at both ends of the movable block (7021). The bottom ends of the support springs (7023) are installed on the fixed block. And a pressure sensor (7024) for detecting the support springs (7023) is also arranged on the fixed block.

4. The rubber pressure test tooling according to claim 2, characterized in that: Grooves are also provided on both sides of the fixed block. A trigger gear (7025) is installed in the grooves. A driving rack (7026) and a driven rack (7027) are respectively engaged on both sides of the trigger gear (7025). The driving rack (7026) is installed on the inner side surface of the movable block (7021). The driven rack (7027) is slidably installed inside the grooves. A distance sensor (7028) for detecting the driven rack (7027) is also installed on the bottom wall of the grooves.

5. A rubber pressure testing tooling according to claim 1, characterized in that: Slots (7011) matching the T-shaped groove (6) are provided on both side edges of the moving seat (701). A fixing bolt (7012) is also threadedly engaged through the moving seat (701).

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