Water pressure testing device

A technology of hydraulic testing and driving devices, which is applied to measuring devices, applying stable tension/pressure to test the strength of materials, instruments, etc., can solve the problems of inaccurate test results and low test efficiency, and reduce the impact of pressure. Guaranteed effectiveness of test results

Pending Publication Date: 2017-02-22
WUXI CHUANGHENG MACHINERY
6 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

In the prior art, the hydraulic testing device generally includes a pressure plate and a tooling base plate. Bolts are arranged on both sides of the tooling base plate. The pressure plate and the tooling base plate are fixed by bolts. Between the bottom plates, the water pipes connected to the bottom plates pass water into the interior of the workpiece; every time a hydraulic test is performed, it needs to be disassembled once, and the test effi...
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Method used

In order to prevent that the pressure of the compression block 13 and the workpiece holder 2 clamping the workpiece 6 is too large, a spacer backing plate 7 is installed below the workpiece 6, and the spacer backing plate 7 and the spacer of the spacer backing plate 7 and the compression block 13 below The stopper 3 is match...
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Abstract

The invention relates to a water pressure testing device. The water pressure testing device comprises a support and is characterized in that a workpiece fixing seat is mounted at one end of the support, a limiting cushion plate used for holding a workpiece is arranged on the inner side of the workpiece fixing seat, the inner end face of the workpiece fixing seat contacts with one end face of the workpiece, and a water inlet pipe is connected to the outer end face of the workpiece fixing seat; a movable seat is slidably arranged at the other end of the support and is connected with a power outlet end of a driving device; a pressing block is mounted on the movable seat, and one side, facing towards the workpiece fixing seat, of the pressing block serves as a sealing face in close fit with the workpiece; a limiting stop block matched with the limiting cushion block is arranged below the pressing block. The workpiece fixing seat and the movable seat are horizontally arranged on the two sides of the workpiece respectively. Sliding rails are arranged on the support, and sliders fixed to the movable seat are arranged on the sliding rails. The water pressure testing device has the advantages that sealing of a mold cavity of the workpiece during water pressure testing can be guaranteed, pressure influence on the workpiece from the testing device is reduced, and accuracy of a testing result is guaranteed.

Application Domain

Material strength using tensile/compressive forces

Technology Topic

PipingWater pressure +2

Image

  • Water pressure testing device
  • Water pressure testing device
  • Water pressure testing device

Examples

  • Experimental program(1)

Example Embodiment

[0012] The present invention will be further described below in conjunction with specific drawings.
[0013] Such as Figure 1 ~ Figure 3 As shown: the water pressure test device includes a water inlet pipe 1, a workpiece fixing seat 2, a limit stopper 3, a hand wheel 4, a support 5, a workpiece 6, a limit pad 7, a slide rail 8, a sliding block 9, The moving seat 10, the screw nut 11, the screw 12, the compression block 13, etc.
[0014] Such as Figure 1 ~ Figure 3 As shown, the water pressure testing device of the present invention includes a support 5, a workpiece fixing seat 2 is installed at one end of the support 5, and a limit pad 7 for placing a workpiece 6 is provided on the inner side of the workpiece fixing seat 2, and the workpiece is fixed The inner end surface of the seat 2 is in contact with one end surface of the workpiece 6, and the outer end surface of the workpiece fixing seat 2 is connected to the water inlet pipe 1; a slide rail 8 is provided on the other end of the support 5, and a slider 9 is slidably provided on the slide rail 8 , The sliding block 9 is fixed with the moving base 10, the bottom of the moving base 10 is connected with a screw nut 11, the screw nut 11 is connected to the screw 12 by threads, and the end of the screw 12 is equipped with a hand wheel 4; A compression block 13 is installed on 10, and the side of the compression block 13 facing the workpiece fixing seat 2 is a sealing surface that closely fits with the workpiece 6.
[0015] In order to prevent the compression block 13 and the workpiece holder 2 from clamping the workpiece 6 with too much pressure, a limit pad 7 is installed under the workpiece 6. The limit pad 7 and the limit stop below the compression block 13 3 are matched; when the side surface of the limit pad 7 is in contact with the side surface of the limit stop 3, the compression block 13 and the workpiece fixing seat 2 will seal the cavity of the workpiece 6 from both sides of the workpiece 6 to prevent The excessive movement of the pressing block 13 causes unnecessary pressure on the workpiece 6.
[0016] The working process of the present invention: the workpiece is placed on the limit pad 7, and the moving seat 10 is moved to the side of the workpiece 6 by shaking the hand wheel 4 until the limit pad 7 and the limit stop 3 contact and limit The moving seat 10 further compresses the workpiece 6; at this time, the cavity of the workpiece 6 is sealed by the workpiece fixing seat 2 and the compression block 13 on both sides. Water is injected into the cavity of the workpiece 6 through the water inlet pipe 1 to perform a pressureless test.
[0017] The invention can avoid overload of the pressing force of the test device on the workpiece 6 and prevent the pressure of the overload from affecting the result of the hydraulic test.

PUM

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Description & Claims & Application Information

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