Clamping tool for pressure resistance test of PE pipe fitting

Abstract

The utility model relates to the field of PE pipe fitting testing equipment, in particular to a clamping tool for a pressure resistance test of a PE pipe fitting, which comprises a base, a lifting frame is arranged at the upper end of the base, two sliding blocks are arranged at the upper end of the lifting frame in a sliding manner, and four-claw self-centering chucks are arranged at the upper ends of the sliding blocks. A high-pressure water supply mechanism and a pressure measuring mechanism are slidably arranged on the base on the two sides of the lifting frame respectively. According to the utility model, the four-claw self-centering chuck is used for replacing manual holding of the pipe fitting, so that the clamping stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of PE pipe fitting testing equipment, in particular to a clamping tooling for pressure resistance testing of PE pipe fittings. Background Technique

[0002] PE pipe fittings are pipe fittings made of PE material. PE material is a thermoplastic resin obtained by polymerizing ethylene monomers. PE pipe fittings have excellent low-temperature resistance, stable chemical properties, and are widely used. After the production of PE pipe fittings, sampling inspection is required to ensure that the pressure resistance strength of the products leaving the factory meets the standards. Commonly used PE pipe fittings are manually held for pressure testing during testing, which is inconvenient to use and the holding is unstable. Therefore, it is particularly necessary to develop a clamping tooling for pressure resistance testing of PE pipe fittings to replace manual holding of pipe fittings and improve the stability of clamping and the convenience of testing. Summary of the Invention

[0003] The purpose of the utility model is to provide a clamping tooling for pressure resistance testing of PE pipe fittings, which has the advantages of replacing manual holding of pipe fittings and improving the stability of clamping.

[0004] The adopted technical scheme is as follows:

[0005] A clamping tooling for pressure resistance testing of PE pipe fittings includes a base. An elevating frame is arranged at the upper end of the base. Two sliders are slidably arranged at the upper end of the elevating frame. Four-jaw self-centering chucks are arranged at the upper ends of the sliders. A high-pressure water supply mechanism and a pressure measuring mechanism are respectively slidably arranged on the base on both sides of the elevating frame.

[0006] Preferably, a laser level is arranged outside the four-jaw self-centering chuck.

[0007] Preferably, the high-pressure water supply mechanism includes a high-pressure pump. A water supply pipe is detachably arranged on the high-pressure pump. A detachable pipe joint is arranged at the outlet of the water supply pipe.

[0008] Preferably, the pressure measuring mechanism includes a water outlet pipe. One end of the water outlet pipe far from the elevating frame is closed. A detachable pipe joint is arranged at the opening of the water outlet pipe. A pressure sensor is installed in the water outlet pipe.

[0009] Preferably, a water collecting pool is arranged at the upper end of the elevating frame. The sliders are both arranged inside the water collecting pool.

[0010] Preferably, a protective cover is hinged at the upper end of the water collecting pool. Exits are arranged at both ends of the protective cover. A locking mechanism is arranged between the protective cover and the water collecting pool.

[0011] Preferably, the protective cover is made of transparent acrylic material.

[0012] Compared with the prior art, the beneficial effects are as follows:

[0013] 1. When the clamping tool for pressure testing of PE pipe fittings of the present utility model is used for pressure testing, two four-jaw self-centering chucks are used to clamp both ends of the PE pipe fitting. The high-pressure water supply mechanism and the pressure testing mechanism are moved, and the lifting frame is controlled to lift and lower, so that the high-pressure water supply mechanism and the pressure testing mechanism are respectively connected to both ends of the PE pipe fitting. Subsequently, the four-jaw self-centering chuck is controlled to clamp the PE pipe fitting to achieve the seal between the high-pressure water supply mechanism and the pressure testing mechanism and the PE pipe fitting. The high-pressure water supply mechanism is used to supply water to the PE pipe fitting, the pressure testing mechanism is used for pressure testing, and the four-jaw self-centering chuck is used to replace manual holding of the pipe fitting, improving the clamping stability.

[0014] 2. In the present utility model, the collecting pool and the protective cover play a role in protecting when the PE pipe fitting explodes, avoiding the water in the PE pipe fitting from splashing. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of a clamping tool for pressure resistance testing of a PE pipe fitting of the present utility model.

[0016] Figure 2 is a front structural schematic diagram of a clamping tool for pressure resistance testing of a PE pipe fitting of the present utility model.

[0017] In the figure: 1. Base, 2. Lifting frame, 3. Slide block, 4. Four-jaw self-centering chuck, 5. Laser level, 6. High-pressure water supply mechanism, 7. Pressure testing mechanism, 8. Collecting pool, 9. Protective cover, 10. Removable pipe joint, 11. Outlet pipe, 12. Locking mechanism. Specific Embodiments

[0018] The following further describes the present utility model in conjunction with specific embodiments, as From Figure 1 to Figure 2 shown:

[0019] Embodiment 1: A clamping tool for pressure resistance testing of a PE pipe fitting, including a base 1. A lifting frame 2 is arranged at the upper end of the base 1. Two slide blocks 3 are slidably arranged at the upper end of the lifting frame 2. Four-jaw self-centering chucks 4 are arranged at the upper ends of the slide blocks 3. The lifting frame 2 and the slide blocks 3 control the position of the four-jaw self-centering chuck 4 in space. The two four-jaw self-centering chucks 4 clamp both ends of the PE pipe fitting. The lifting frame 2 is used to adjust the center height of the PE pipe fitting, so as to adapt to PE pipe fittings of different diameters.

[0020] On the bases 1 on both sides of the lifting frame 2, a high-pressure water supply mechanism 6 and a pressure measuring mechanism 7 are respectively slidably arranged. Before pressure measurement, the two ends of the PE pipe fitting are clamped by two four-jaw self-centering chucks 4. The high-pressure water supply mechanism 6 and the pressure measuring mechanism 7 are moved, and the lifting frame 2 is controlled to lift and lower, so that the high-pressure water supply mechanism 6 and the pressure measuring mechanism 7 are respectively connected to the two ends of the PE pipe fitting. Subsequently, the four-jaw self-centering chuck 4 is controlled to clamp the PE pipe fitting, realizing the sealing between the high-pressure water supply mechanism 6 and the pressure measuring mechanism 7 and the PE pipe fitting. The high-pressure water supply mechanism 6 is used to supply water to the PE pipe fitting, and the pressure measuring mechanism 7 is used for pressure measurement.

[0021] Embodiment 2: A clamping tool for pressure resistance testing of PE pipe fittings, including a base 1. An upper end of the base 1 is provided with a lifting frame 2. Two sliders 3 are slidably arranged at an upper end of the lifting frame 2. Four-jaw self-centering chucks 4 are arranged at upper ends of the sliders 3. The lifting frame 2 and the sliders 3 control the four-jaw self-centering chucks 4 to move positions in space. The two four-jaw self-centering chucks 4 clamp the two ends of the PE pipe fitting. The lifting frame 2 is used to adjust the center height of the PE pipe fitting, so as to adapt to PE pipe fittings with different diameters. A laser level 5 is arranged outside the four-jaw self-centering chuck 4. The height of the horizontal laser line emitted by the laser level 5 is consistent with the center height of the four-jaw self-centering chuck 4.

[0022] On the bases 1 on both sides of the lifting frame 2, a high-pressure water supply mechanism 6 and a pressure measuring mechanism 7 are respectively slidably arranged. The high-pressure water supply mechanism 6 includes a high-pressure pump. A water supply pipe is detachably arranged on the high-pressure pump. A detachable pipe joint 10 is arranged at an outlet of the water supply pipe. The pressure measuring mechanism 7 includes a water outlet pipe 11. One end of the water outlet pipe 11 far from the lifting frame 2 is closed. A detachable pipe joint 10 is arranged at an opening of the water outlet pipe 11. A pressure sensor is installed in the water outlet pipe 11. The detachable pipe joint 10 facilitates the replacement of pipe joints with different outer diameters to adapt to PE pipe fittings with different sizes. The high-pressure water supply mechanism 6 is used to supply water to the PE pipe fitting, and the pressure measuring mechanism 7 is used to test the internal water pressure of the PE pipe fitting.

[0023] A water collecting pool 8 is arranged at an upper end of the lifting frame 2. The sliders 3 are both arranged inside the water collecting pool 8. A protective cover 9 is hinged at an upper end of the water collecting pool 8. Exits are opened at both ends of the protective cover 9. A locking mechanism 12 is arranged between the protective cover 9 and the water collecting pool 8. The locking mechanism 12 is used to fixedly connect the water collecting pool 8 and the protective cover 9. The protective cover 9 is made of transparent acrylic material, which is convenient for observing the internal working conditions. The water collecting pool 8 and the protective cover 9 play a protective role when the PE pipe fitting explodes, avoiding the water in the PE pipe fitting from splashing.

[0024] The specific working process is as follows: Before pressure measurement, use two four-jaw self-centering chucks 4 to clamp both ends of the PE pipe fitting, move the high-pressure water supply mechanism 6 and the pressure measurement mechanism 7, control the lifting of the lifting frame 2, and use the horizontal laser line emitted by the laser level 5 as a reference to coaxially arrange the PE pipe fitting with each detachable pipe joint 10. Subsequently, connect the high-pressure water supply mechanism 6 and the pressure measurement mechanism 7 to both ends of the PE pipe fitting respectively, and then control the four-jaw self-centering chuck 4 to clamp the PE pipe fitting to achieve the sealing between the high-pressure water supply mechanism 6 and the pressure measurement mechanism 7 and the PE pipe fitting. Cover the protective cover 9 on the upper end of the PE pipe fitting, supply water to the PE pipe fitting by using the high-pressure water supply mechanism 6, and perform pressure measurement by using the pressure measurement mechanism 7.

[0025] The above-mentioned implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A clamping tooling for pressure resistance testing of PE pipe fittings, characterized in that: It includes a base, a lifting frame is arranged at the upper end of the base, two sliders are slidably arranged at the upper end of the lifting frame, four-jaw self-centering chucks are arranged at the upper ends of the sliders, and a high-pressure water supply mechanism and a pressure measuring mechanism are respectively slidably arranged on the base on both sides of the lifting frame.

2. The clamping tooling for pressure resistance testing of PE pipe fittings according to claim 1, characterized in that: A laser level is arranged on the outside of the four-jaw self-centering chuck.

3. The clamping tooling for pressure resistance testing of PE pipe fittings according to claim 1, characterized in that: The high-pressure water supply mechanism includes a high-pressure pump, a water supply pipe is detachably arranged on the high-pressure pump, and a detachable pipe joint is arranged at the outlet of the water supply pipe.

4. A clamping tooling for pressure resistance testing of PE pipe fittings according to claim 1, characterized in that: The pressure measuring mechanism includes a water outlet pipe, one end of the water outlet pipe away from the lifting frame is closed, a detachable pipe joint is arranged at the opening of the water outlet pipe, and a pressure sensor is installed in the water outlet pipe.

5. The clamping tooling for pressure resistance testing of PE pipe fittings according to claim 1, characterized in that: A water collecting pool is arranged at the upper end of the lifting frame, and the sliders are all arranged inside the water collecting pool.

6. The clamping tooling for pressure resistance testing of PE pipe fittings according to claim 5, characterized in that: A protective cover is hinged at the upper end of the water collecting pool, outlets are arranged at both ends of the protective cover, and a locking mechanism is arranged between the protective cover and the water collecting pool.

7. The clamping tooling for pressure resistance testing of PE pipe fittings according to claim 6, wherein: The protective cover is made of transparent acrylic material.

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