Jig for multi-station hard tube pressure test
By designing a multi-station hard tube pressure test fixture and using multiple sets of test fixtures and transmission rod drive systems, the cumbersome problem of testing multiple sets of hard tubes in the existing technology is solved, and the efficiency and simplicity of hard tube testing is achieved.
Patent Information
- Application Number
- CN202421647172.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing hard tube pressure testing fixtures are inconvenient to clamping and testing multiple sets of hard tubes at the same time, resulting in cumbersome testing process, increasing processes and reducing testing efficiency.
A multi-station hard tube pressure testing fixture is designed, using multiple sets of test fixtures and transmission rod drive system. Through the rotation of the transmission rod, multiple sets of clamping plates are brought close to each other, realizing simultaneous clamping tests for multiple sets of hard tubes.
It realizes stress testing of multiple sets of hard tubes simultaneously, simplifies the testing process, improves the testing efficiency and reduces the process.
Smart Images
Figure CN222895996U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing fixtures, in particular to a multi-station hard pipe pressure testing fixture. Background Art
[0002] After the hard tube is produced, it is necessary to use a pressure test fixture to test the pressure strength of the hard tube, so as to determine whether the hard tube meets the production quality standards;
[0003] The existing pressure test for hard pipes generally adopts the clamping test method, which is to place the hard pipe to be tested on the top of the test platform, and use the test fixtures on both sides to clamp the hard pipe. Then, the hard pipe after the test is taken out, and the staff checks the surface of the hard pipe after the clamping test to see if there is any dent or wear on the surface of the hard pipe, and then judges whether the pressure strength of the hard pipe meets the production standards;
[0004] Since the quality of hard tubes produced by different production equipment is different during the production process, it is necessary to perform pressure tests on multiple groups of hard tubes. However, the existing test fixture is not convenient for clamping and testing multiple groups of hard tubes at the same time, which makes it more troublesome to test multiple groups of hard tubes. It is necessary to test hard tubes of different qualities one by one, which increases the process of testing multiple groups of hard tubes and is inconvenient to use. In view of the shortcomings of the existing technology, we propose a multi-station hard tube pressure test fixture to solve the above problems. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a multi-station hard tube pressure testing fixture, which solves the problem of being troublesome when testing multiple groups of hard tubes, requiring testing of hard tubes of different qualities one by one, and increasing the process of testing multiple groups of hard tubes.
[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a multi-station hard pipe pressure test fixture, including a test bench, a plurality of test fixtures are arranged at intervals on the top of the test bench, and support rings are arranged on both sides of the plurality of test fixtures. The test fixtures are composed of a first clamping plate and a second clamping plate. A driving unit is arranged inside the test bench, and the driving unit includes:
[0007] a transmission rod, which is rotatably connected to the interior of the test bench;
[0008] The first driving block and the second driving block are slidably sleeved on the outer peripheral wall of the transmission rod at a distance therebetween;
[0009] A plurality of groups of the first driving blocks and the second driving blocks are arranged alternately, and the top ends of the first driving blocks and the second driving blocks are fixedly connected to the bottom ends of the first clamping plate and the second clamping plate respectively;
[0010] The transmission rod is rotated so that the first driving block and the second driving block simultaneously drive a plurality of groups of first clamping plates and second clamping plates to approach each other to perform a clamping test operation on the hard pipe.
[0011] Preferably, the first driving block and the second driving block slide away from each other, and the outer peripheral wall of the transmission rod is provided with a plurality of groups of positive threads and negative threads at regular intervals.
[0012] Preferably, the positive thread and the negative thread correspond to the positions of the first driving block and the second driving block respectively.
[0013] Preferably, a driving motor is disposed on one side outer wall of the test bench, and an output end of the driving motor is fixedly connected to one end of a transmission rod.
[0014] Preferably, the test bench is internally rotatably connected with a bidirectional screw rod, and the bidirectional screw rod is located at the bottom end of the transmission rod.
[0015] Preferably, the outer peripheral walls on both sides of the bidirectional screw are slidably connected with driving members, the top ends of the driving members on both sides are fixedly connected with connecting plates, and one end of the bidirectional screw is fixedly connected with a driving handle.
[0016] Preferably, the bottom ends of the plurality of groups of support rings are fixedly connected with connecting plates.
[0017] The utility model discloses a multi-station hard pipe pressure test fixture, which has the following beneficial effects: the multi-station hard pipe pressure test fixture, by forming a test fixture with two groups of clamping plates, and setting a transmission rod as a bidirectional screw with multi-end positive and negative threads, so that the first drive block slides at the positive thread, and the second drive block slides at the negative thread, and the multiple groups of positive and negative thread spacings are staggered, so that during the rotation of the transmission rod, the first drive block and the second drive block can slide close to each other, and then multiple groups of test fixtures can be clamped and tested on multiple groups of hard pipes at the same time, thereby realizing the operation of multi-station hard pipe testing, and then the efficiency of hard pipe testing can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the test bench of the utility model;
[0021] Figure 3 This is a schematic diagram of the connection structure between the transmission rod and two sets of clamping plates of the utility model;
[0022] Figure 4 It is a schematic diagram of the connection structure between the bidirectional screw and the support rings on both sides of the utility model.
[0023] In the figure: 1. test bench; 2. support ring; 201. bidirectional screw; 202. driving member; 203. driving handle; 204. connecting plate; 3. test fixture; 301. first clamping plate; 302. second clamping plate; 303. transmission rod; 3031. first driving block; 3032. second driving block; 3033. positive thread; 3034. negative thread; 3035. driving motor. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are 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.
[0025] The embodiment of the present application provides a multi-station hard tube pressure testing fixture, which solves the problem of being troublesome when testing multiple groups of hard tubes. The test operation needs to be performed one by one on hard tubes of different qualities, and the process of testing multiple groups of hard tubes is increased. It is possible to simultaneously enable multiple groups of test fixtures to clamp and test multiple groups of hard tubes, realize multi-station hard tube testing, and thereby improve the efficiency of hard tube testing.
[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0027] The utility model embodiment discloses a jig for multi-station hard pipe pressure testing.
[0028] According to the attached Figure 1-4 As shown, it includes a test bench 1, a plurality of test fixtures 3 are arranged at intervals at the top of the test bench 1, and support rings 2 are arranged on both sides of the plurality of test fixtures 3. The test fixture 3 is composed of a first clamping plate 301 and a second clamping plate 302. The test hard pipe is located between the two clamping plates. The clamping plates on both sides are brought close to each other to rigidly clamp the hard pipe, so as to test the pressure strength of the hard pipe. A driving unit is arranged inside the test bench 1, and the driving unit includes:
[0029] A transmission rod 303, which is rotatably connected to the inside of the test bench 1;
[0030] The first driving block 3031 and the second driving block 3032 are slidably sleeved on the outer wall of the transmission rod 303 at a distance. Before use, the multiple groups of first clamps 301 and second clamps 302 are in a state of being away from each other. The distance between the support rings 2 on both sides is adjusted according to the length of the hard tube to be tested, so that the support rings 2 on both sides can support the two ends of the hard tube.
[0031] Multiple groups of first drive blocks 3031 and second drive blocks 3032 are arranged alternately, and the top ends of the first drive blocks 3031 and the second drive blocks 3032 are fixedly connected to the bottom ends of the first clamping plate 301 and the second clamping plate 302 respectively; at the same time, multiple groups of hard tubes are placed inside the support rings 2 on both sides, and the transmission rod 303 rotates at this time, which can simultaneously make the multiple groups of first drive blocks 3031 and the second drive blocks 3032 drive the multiple groups of first clamping plates 301 and the second clamping plates 302 approach each other, so that the multiple groups of test fixtures 3 have a rigid clamping effect on the hard tubes. Subsequently, the hard tubes after the clamping test are taken out, and the staff checks whether the surface of the hard tubes is damaged, and then determines whether the pressure of the hard tubes meets the production standards.
[0032] The transmission rod 303 rotates to simultaneously cause the first driving block 3031 and the second driving block 3032 to drive multiple groups of first clamping plates 301 and second clamping plates 302 to approach each other to perform a clamping test operation on the hard pipe.
[0033] The first driving block 3031 and the second driving block 3032 slide away from each other, and the outer peripheral wall of the transmission rod 303 is evenly spaced to form multiple groups of positive threads 3033 and negative threads 3034, and the positive threads 3033 and negative threads 3034 correspond to the positions of the first driving block 3031 and the second driving block 3032 respectively. It should be noted that the first driving block 3031 slides at the positive thread 3033, and the second driving block 3032 slides at the negative thread 3034, and the multiple groups of positive threads 3033 and negative threads 3034 are staggered, so that the first driving block 3031 and the second driving block 3032 can slide close to each other during the rotation of the transmission rod 303, so that multiple groups of test fixtures 3 can clamp and test multiple groups of hard pipes at the same time.
[0034] A driving motor 3035 is provided on one outer wall of the test bench 1 , and the output end of the driving motor 3035 is fixedly connected to one end of the transmission rod 303 . A bidirectional screw 201 is rotatably connected inside the test bench 1 , and the bidirectional screw 201 is located at the bottom end of the transmission rod 303 .
[0035] The outer walls on both sides of the bidirectional screw 201 are slidably connected with driving parts 202, and the top ends of the driving parts 202 on both sides are fixedly connected with connecting plates 204. The connecting plates 204 connect multiple groups of support rings 2, and the connecting plates 204 drive the multiple groups of support rings 2 to slide at the same time through the driving parts 202. One end of the bidirectional screw 201 is fixedly connected with a driving handle 203, and the bottom ends of the multiple groups of support rings 2 are fixedly connected with connecting plates 204. By rotating the driving handle 203, the bidirectional screw 201 is rotated inside the test bench 1, so that the driving parts 202 on both sides can drive the multiple groups of support rings 2 on both sides to slide close to each other, so that the support rings 2 on both sides can meet the needs of supporting hard pipes of different lengths.
[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A multi-station hard pipe pressure test fixture, comprising a test bench (1), wherein a plurality of test fixtures (3) are arranged at intervals at the top of the test bench (1), and support rings (2) are arranged on both sides of the plurality of test fixtures (3), characterized in that: The test fixture (3) is composed of a first clamping plate (301) and a second clamping plate (302), and a driving unit is arranged inside the test bench (1), and the driving unit comprises: A transmission rod (303) rotatably connected to the interior of the test bench (1); The first driving block (3031) and the second driving block (3032) are slidably sleeved on the outer peripheral wall of the transmission rod (303) at a distance therebetween; A plurality of groups of the first driving blocks (3031) and the second driving blocks (3032) are arranged alternately, and the top ends of the first driving blocks (3031) and the second driving blocks (3032) are fixedly connected to the bottom ends of the first clamping plate (301) and the second clamping plate (302) respectively; The transmission rod (303) is rotated so that the first driving block (3031) and the second driving block (3032) simultaneously drive multiple groups of first clamping plates (301) and second clamping plates (302) to approach each other to perform a clamping test operation on the hard pipe.
2. A multi-station hard pipe pressure test fixture according to claim 1, characterized in that: The first driving block (3031) and the second driving block (3032) slide away from each other, and the outer peripheral wall of the transmission rod (303) is provided with a plurality of groups of positive threads (3033) and negative threads (3034) at regular intervals.
3. A multi-station hard pipe pressure test fixture according to claim 2, characterized in that: The positive thread (3033) and the negative thread (3034) correspond to the positions of the first driving block (3031) and the second driving block (3032) respectively.
4. The multi-station hard pipe pressure test fixture according to claim 3, characterized in that: A drive motor (3035) is provided on one side outer wall of the test bench (1), and an output end of the drive motor (3035) is fixedly connected to one end of a transmission rod (303).
5. A multi-station hard pipe pressure test fixture according to claim 4, characterized in that: A bidirectional screw rod (201) is rotatably connected inside the test bench (1), and the bidirectional screw rod (201) is located at the bottom end of the transmission rod (303).
6. A multi-station hard pipe pressure test fixture according to claim 5, characterized in that: The outer peripheral walls on both sides of the bidirectional screw rod (201) are slidably connected to driving members (202), the top ends of the driving members (202) on both sides are fixedly connected to connecting plates (204), and one end of the bidirectional screw rod (201) is fixedly connected to a driving handle (203).
7. The multi-station hard pipe pressure test fixture according to claim 1, characterized in that: The bottom ends of the plurality of groups of support rings (2) are all fixedly connected to a connecting plate (204).