Pipe compression resistance detection device

Abstract

The utility model relates to the technical field of steel pipe processing, and particularly discloses a pipe compression resistance detection device which comprises a table top and a supporting plate, supporting legs are fixedly installed on the four sides of the lower end of the table top, strip-shaped holes are symmetrically formed in the side walls of the left end and the right end of the table top, and a moving block is slidably connected into each strip-shaped hole. Clamping plates are fixedly installed at the upper ends of the moving blocks, a high-pressure hose is in threaded connection with the side wall of one clamping plate, the supporting plate is in an L shape, one end of the supporting plate is fixedly installed at the upper end of the table top, an electric push rod is fixedly installed at the other end of the supporting plate, and a push plate is fixedly installed at the output end of the electric push rod; one end of a metal pipe needing to be detected is inserted into the limiting cylinder, the metal pipe is kept in a horizontal state, then the motor is started to drive the two clamping plates to be close to each other, the metal pipe is clamped, the two ends of the metal pipe are sealed through the blocking blocks, and then airtightness and hardness detection can be sequentially conducted on the metal pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a pipe compression detection device. Background Art

[0002] Stainless steel pipe is a hollow long round steel, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural parts. In addition, when the bending and torsional strengths are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures, and is also often used as furniture and kitchen utensils. During the processing of steel pipes, it is necessary to use a compression testing device to perform compression testing on the steel pipes to ensure the quality of the steel pipes.

[0003] There are often welding problems in existing steel pipes. If the weld is defective and is not discovered in time, it may cause oxidation and rust of the weld after it is put into use, resulting in perforation of the steel pipe and affecting the use effect of the steel pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a pipe compression testing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe compression testing device, comprising: a table and a support plate, legs are fixedly installed on the four sides of the lower end of the table, strip holes are symmetrically opened on the side walls at the left and right ends of the table, a moving block is slidably connected in each of the strip holes, a clamping plate is fixedly installed on the upper end of the moving block, and a sealing pad and a limit cylinder are fixedly installed on the inner end side wall of the clamping plate;

[0006] A high-pressure hose is threadedly connected to the side wall of one of the clamping plates. The support plate is L-shaped. One end of the support plate is fixedly installed on the upper end of the table, and the other end is fixedly installed with an electric push rod. A push plate is fixedly installed on the output end of the electric push rod.

[0007] Preferably, mounting plates are fixedly installed on the left and right sides of the lower end of the table top, a threaded rod is rotatably connected between the two mounting plates, the threads on the left and right ends of the threaded rod are symmetrically arranged, a motor is fixedly installed on the side wall of one of the mounting plates, and the output end of the motor is fixedly connected to one end of the threaded rod through a coupling.

[0008] Preferably, the left and right ends of the threaded rod are symmetrically threadedly connected with threaded barrels, and the threaded barrels are fixedly mounted on the lower end of the moving block.

[0009] Preferably, a guide hole is provided on the inner end side wall of each of the limiting cylinders, a blocking block is fixedly installed on the inner end of each limiting cylinder, and an arc slope is provided on the outer end of the blocking block.

[0010] Preferably, a threaded hole is provided on the outer end side wall of one of the clamping plates, and an air hole is provided on the side wall of the blocking block, and the air hole and the threaded hole are communicated.

[0011] Preferably, a threaded tube is fixedly mounted on one end of the high-pressure hose, a driving block is fixedly mounted on the outer end of the threaded tube, and the outer wall of the threaded tube is threadedly connected to the inner wall of the threaded hole.

[0012] Preferably, the output end of the electric push rod passes through the side wall of the support plate and is fixedly connected to the upper end of the push plate. The lower end of the push plate is provided with an arc-shaped groove, and the push plate is located between the two clamping plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Insert one end of the metal tube to be tested into the limit cylinder and keep the metal tube in a horizontal state, then start the motor to drive the two clamping plates closer to each other, clamp the metal tube, and seal the two ends of the metal tube with a blocking block, so that the air tightness and hardness of the metal tube can be tested in turn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a second schematic diagram of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the front structure of the clamping plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the back structure of the clamping plate of the utility model.

[0019] In the figure: 1, table; 2, support leg; 3, strip hole; 4, mounting plate; 5, motor; 6, moving block; 7, threaded cylinder; 8, clamping plate; 9, sealing gasket; 10, limiting cylinder; 11, blocking block; 12, air hole; 13, threaded hole; 14, threaded pipe; 15, driving block; 16, high-pressure hose; 17, threaded rod; 18, support plate; 19, electric push rod; 20, push plate. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a pipe compression detection device, comprising: a table top 1 and a support plate 18, legs 2 are fixedly installed on the four sides of the lower end of the table top 1, strip holes 3 are symmetrically opened on the side walls at the left and right ends of the table top 1, and mounting plates 4 are fixedly installed on the left and right sides of the lower end of the table top 1. The two mounting plates 4 are located on the outsides of the two strip holes 3, and a threaded rod 17 is rotatably connected between the two mounting plates 4. The threads on the left and right ends of the threaded rod 17 are symmetrically arranged, and the threaded rod 17 is located directly below the strip holes 3. A motor 5 is fixedly installed on the side wall of one of the mounting plates 4, and the output end of the motor 5 is fixedly connected to one end of the threaded rod 17 through a coupling. The motor 5 is a servo motor, which can drive the threaded rod 17 to rotate forward and reverse between the two mounting plates 4.

[0022] A moving block 6 is slidably connected in each strip hole 3, and a threaded tube 7 is fixedly installed on the lower end of the moving block 6 after passing through the strip hole 3. The left and right ends of the threaded rod 17 are symmetrically threadedly connected with the threaded tube 7, and a clamping plate 8 is fixedly installed on the upper end of the moving block 6. When the motor 5 is started, the threaded rod 17 can be driven to rotate. When the threaded rod 17 rotates, the two clamping plates 8 can be driven to move synchronously inward or outward through the moving block 6. A sealing gasket 9 and a limiting tube 10 are fixedly installed on the inner end side wall of the clamping plate 8. A guide break is provided on the inner end side wall of each limiting tube 10, which is convenient for inserting the metal tube to be detected into the limiting tube 10 to limit the metal tube. A blocking block 11 is fixedly installed on the inner end of each limiting tube 10, and an arc slope is provided at the outer end of the blocking block 11. The setting of the arc slope facilitates the blocking block 11 to be inserted into the metal tube to block the metal tube.

[0023] A high-pressure hose 16 is threadedly connected to the side wall of one of the clamping plates 8, and a threaded hole 13 is provided on the outer end side wall of one of the clamping plates 8. The blocking block 11 and the side wall of the sealing gasket 9 are provided with an air hole 12, and the air hole 12 is connected to the threaded hole 13. A threaded tube 14 is fixedly installed on one end of the high-pressure hose 16 and is connected to the inner end of the threaded tube 14. A driving block 15 is fixedly installed on the outer end of the threaded tube 14. The outer wall of the threaded tube 14 is threadedly connected to the inner wall of the threaded hole 13, so that the high-pressure hose 16 is sealed and installed on one side of the clamping plate 8. An airtight detector is installed on the other end of the high-pressure hose 16. External compressed air is injected into the specified compressed air into the metal pipe through the airtight detector and the high-pressure hose 16 in turn. If the weld of the metal pipe is not firm or tight, the high-pressure air inside the metal pipe will leak out from the weld of the metal pipe. The airtight detector detects the abnormal air pressure and issues an alarm, thereby achieving the effect of pressure resistance detection of the weld of the metal pipe, and can timely and effectively detect metal pipes of defective categories.

[0024] The support plate 18 is L-shaped, one end of the support plate 18 is fixedly mounted on the upper end of the table 1, and the other end is fixedly mounted with an electric push rod 19, and a push plate 20 is fixedly mounted on the output end of the electric push rod 19. The output end of the electric push rod 19 passes through the side wall of the support plate 18 and is fixedly connected to the upper end of the push plate 20. The lower end of the push plate 20 is provided with an arc-shaped groove. The push plate 20 is located between the two clamping plates 8. After the airtightness test of the metal pipe is completed, the hardness and compression resistance test can be carried out. By starting the electric push rod 19 to drive the push plate 20 close to the metal pipe and making its lower end face contact the outer surface of the metal, the hardness and compression resistance test of the metal pipe is performed, thereby improving the practicality of the device.

[0025] In actual use, one end of the metal tube to be tested is inserted into the limit tube 10 and the metal tube is kept in a horizontal state. Then the motor 5 is started to drive the two clamping plates 8 to approach each other to clamp the metal tube, and the two ends of the metal tube are sealed by the blocking block 11. The air tightness and hardness of the metal tube can be tested in turn.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe compression testing device, comprising: A table top (1) and a support plate (18), legs (2) are fixedly installed on the four sides of the lower end of the table top (1), strip holes (3) are symmetrically opened on the side walls at the left and right ends of the table top (1), characterized in that: a moving block (6) is slidably connected in each of the strip holes (3), a clamping plate (8) is fixedly installed on the upper end of the moving block (6), and a sealing gasket (9) and a limiting cylinder (10) are fixedly installed on the inner end side wall of the clamping plate (8); A high-pressure hose (16) is threadedly connected to the side wall of one of the clamping plates (8); the support plate (18) is L-shaped; one end of the support plate (18) is fixedly mounted on the upper end of the table (1); an electric push rod (19) is fixedly mounted on the other end; and a push plate (20) is fixedly mounted on the output end of the electric push rod (19).

2. A pipe compression testing device according to claim 1, characterized in that: Mounting plates (4) are fixedly mounted on both left and right sides of the lower end of the table top (1); a threaded rod (17) is rotatably connected between the two mounting plates (4); threads on the left and right ends of the threaded rod (17) are symmetrically arranged; a motor (5) is fixedly mounted on the side wall of one of the mounting plates (4); and an output end of the motor (5) is fixedly connected to one end of the threaded rod (17) via a coupling.

3. A pipe compression testing device according to claim 2, characterized in that: The left and right ends of the threaded rod (17) are symmetrically threadedly connected with a threaded barrel (7), and the threaded barrel (7) is fixedly mounted on the lower end of the moving block (6).

4. A pipe compression testing device according to claim 1, characterized in that: A guide hole is provided on the inner end side wall of each limiting cylinder (10), a blocking block (11) is fixedly mounted on the inner end of each limiting cylinder (10), and an arc slope is provided on the outer end of the blocking block (11).

5. A pipe compression testing device according to claim 4, characterized in that: A threaded hole (13) is provided on the outer side wall of one of the clamping plates (8), and an air hole (12) is provided on the side wall of the blocking block (11), and the air hole (12) and the threaded hole (13) are communicated.

6. A pipe compression testing device according to claim 5, characterized in that: A threaded tube (14) is fixedly mounted on one end of the high-pressure hose (16), a driving block (15) is fixedly mounted on the outer end of the threaded tube (14), and the outer wall of the threaded tube (14) is threadedly connected to the inner wall of the threaded hole (13).

7. A pipe compression testing device according to claim 1, characterized in that: The output end of the electric push rod (19) passes through the side wall of the support plate (18) and is fixedly connected to the upper end of the push plate (20). The lower end of the push plate (20) is provided with an arc-shaped groove. The push plate (20) is located between the two clamping plates (8).

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