Auxiliary tool for detecting and testing load holding force of thread

Abstract

The utility model relates to the technical field of mechanical property testing, in particular to an auxiliary tool for thread load holding force detection testing, which comprises a lower fixing seat, a fixing component, a connecting component, a first mounting component, an assembling component, a second mounting component, a measuring component and a display component. A fixing assembly is arranged above the lower fixing seat, a connecting assembly is arranged below the lower fixing seat, a first mounting assembly is arranged below the connecting assembly, an assembling assembly is arranged above the lower fixing seat, a second mounting assembly is arranged above the assembling assembly, and a measuring assembly is arranged on the inner side of the lower fixing seat. A display assembly is arranged on one side of the lower fixing seat; according to the utility model, the product is firstly fixedly placed in the clamp, and then the clamp structure is fixedly clamped on the hydraulic calipers of the tension testing machine, so that the traditional direct clamping of the hydraulic calipers can be prevented, the situation that the appearance of the tested product often has obvious clamping traces can be effectively avoided, and the accuracy of a detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical performance testing, in particular to an auxiliary tool for detecting and testing the load-bearing force of a thread. Background Art

[0002] Threaded connections are a very common connection method in the machinery manufacturing industry. Their reliability and stability are crucial to the overall performance of mechanical equipment. Therefore, thread holding capacity, that is, the ability of a thread to hold its position under load, has become a key indicator for evaluating the quality of threaded connections. Traditional thread holding capacity testing typically relies on a tensile testing machine, a device that tests the mechanical properties of a material or product by applying a tensile force.

[0003] However, in actual testing, traditional tensile testing machines have significant limitations. Specifically, when using a tensile testing machine to test the holding force of threads, the product (i.e., the threaded part to be tested) needs to be tightly clamped by the tensile testing machine's hydraulic calipers. While this clamping method ensures product stability during testing, it also brings a significant problem: the hydraulic calipers generate a large squeezing force when clamping the product, which often leaves obvious clamping marks on the product surface.

[0004] These clamping marks not only damage the appearance integrity of the product, but may also have a negative impact on the accuracy of the test results. On the one hand, clamping marks may mask defects or problems in the product itself, making it difficult for inspectors to accurately judge the true quality of the product. On the other hand, the presence of clamping marks may also cause stress concentration and crack propagation during subsequent use of the product, thereby reducing the product's service life and reliability.

[0005] Therefore, in order to solve the problem of how to avoid the appearance of clamping marks on the product surface while conducting thread holding force testing, an auxiliary tool for thread holding force testing is proposed. By first fixing the product in the fixture and then fixing the fixture structure on the hydraulic caliper of the tensile testing machine, the traditional direct hydraulic caliper clamping can be prevented, which can effectively avoid the situation where obvious clamping marks often appear on the appearance of the tested product, thereby ensuring the accuracy of the test results. Utility Model Content

[0006] In order to overcome the problems of traditional thread holding force detection devices, a tensile testing machine is usually used to test product performance when testing thread holding force. However, during the clamping test process, the product needs to be clamped and squeezed vigorously by the hydraulic caliper of the tensile testing machine, resulting in obvious clamping marks on the product appearance, affecting the integrity of the product appearance and the accuracy of the test results.

[0007] The technical solution of the utility model is: an auxiliary tool for detecting and testing the thread holding force, comprising a lower fixing seat, a fixing component, a connecting component, a first mounting component, an assembly component, a second mounting component, a measuring component and a display component; a fixing component is arranged above the lower fixing seat, a connecting component is arranged below the lower fixing seat, a first mounting component is arranged below the connecting component, an assembly component is arranged above the lower fixing seat, a second mounting component is arranged above the assembly component, a measuring component is arranged on the inner side of the lower fixing seat, a plurality of measuring components are arranged, and a display component is arranged on one side of the lower fixing seat. There is a display component, and multiple groups of display components are provided; the fixing component includes a first fixing plate, a first fixing bolt, an internally threaded tube, a fixing gasket, a test screw and a fixing block; a first fixing plate is provided above the lower fixing seat, a first fixing bolt is provided on the inner side of the first fixing plate, the first fixing bolt is threadedly connected to the lower fixing seat, multiple groups of first fixing bolts are provided, an internally threaded tube is provided on the inner side of the lower fixing seat, a fixing gasket is provided above the internally threaded tube, a test screw is provided on the inner side of the internally threaded tube, the test screw is threadedly connected to the internally threaded tube, and a fixing block is provided on the outer side of the test screw.

[0008] Preferably, the first fixing plate and the lower fixing seat are connected and fixed by rotating the first fixing bolt. When the first fixing plate and the lower fixing seat are connected and fixed, an extrusion force is generated to clamp and fix the fixing gasket, thereby fixing the position of the internal threaded tube. The test screw is installed in the clamping structure by passing the test screw through the fixing block and rotating the test screw and the internal threaded tube to connect and fix them. By first fixing the product in the fixture and then fixing the fixture structure on the hydraulic caliper of the tensile testing machine, the traditional direct hydraulic caliper clamping can be prevented, which can effectively avoid the situation where there are often obvious clamping marks on the appearance of the tested product, thereby ensuring the accuracy of the test results.

[0009] Preferably, the connecting assembly includes a second fixing plate and a second fixing bolt; the second fixing plate is arranged below the lower fixing seat, the second fixing bolt is arranged on the inner side of the second fixing plate, and the second fixing bolt is threadedly connected to the second fixing plate.

[0010] Preferably, the first mounting assembly includes a first mounting block and a first mounting hole; the first mounting block is provided below the second fixing plate, and the first mounting hole is provided on the inner side of the first mounting block.

[0011] Preferably, the assembly component includes an upper fixing seat and a mounting slot. The upper fixing seat is provided above the test screw, and the inner side of the upper fixing seat is provided with a mounting slot.

[0012] Preferably, the second mounting assembly includes a second mounting block and a second mounting hole; the second mounting block is provided above the upper fixing seat, and the second mounting hole is provided on the inner side of the second mounting block.

[0013] Preferably, the measuring assembly includes a first mounting plate and a laser rangefinder; the first mounting plate is arranged on the inner side of the lower fixing seat, and the laser rangefinder is arranged above the first mounting plate.

[0014] Preferably, the display assembly includes a second mounting plate and a display panel. The second mounting plate is provided on one side of the lower fixing seat, and the display panel is provided on one side of the second mounting plate. The display panel corresponds to the multiple groups of laser rangefinders one by one.

[0015] Beneficial effects of the utility model:

[0016] 1. Compared with traditional thread holding force detection devices, when testing thread holding force, a tensile testing machine is usually used to test product performance. However, during the clamping test process, the product needs to be clamped and squeezed vigorously by the hydraulic caliper of the tensile testing machine, which causes obvious clamping marks on the product appearance, affecting the integrity of the product appearance and the accuracy of the test results. This utility model prevents traditional direct hydraulic caliper clamping by first fixing the product in the fixture and then fixing the fixture structure on the hydraulic caliper of the tensile testing machine. It can effectively avoid the situation where the appearance of the tested product often has obvious clamping marks, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the auxiliary tool for thread load retention test of the present invention;

[0018] Figure 2 Shown is a schematic diagram of the first cross-sectional structure of the auxiliary tool for thread load retention testing of the present invention;

[0019] Figure 3 Shown is a schematic diagram of the second cross-sectional structure of the auxiliary tool for thread load retention testing of the present invention;

[0020] Figure 4 Shown is a schematic diagram of the third cross-sectional structure of the auxiliary tool for thread load retention testing of the present invention;

[0021] Figure 5 Shown is a schematic diagram of the partial three-dimensional structure of the auxiliary tool for thread load retention test of the present invention;

[0022] Explanation of the accompanying drawings: 1. Lower fixing seat; 101. First fixing plate; 102. First fixing bolt; 103. Internally threaded tube; 104. Fixing gasket; 105. Test screw; 106. Fixing block; 201. Second fixing plate; 202. Second fixing bolt; 301. First mounting block; 302. First mounting hole; 401. Upper fixing seat; 402. Mounting slot; 501. Second mounting block; 502. Second mounting hole; 601. First mounting plate; 602. Laser rangefinder; 701. Second mounting plate; 702. Display panel. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1 The utility model provides an embodiment: an auxiliary tool for detecting and testing the thread holding force, comprising a lower fixing seat 1, a fixing assembly, a connecting assembly, a first mounting assembly, an assembly assembly, a second mounting assembly, a measuring assembly and a display assembly; a fixing assembly is arranged above the lower fixing seat 1, a connecting assembly is arranged below the lower fixing seat 1, a first mounting assembly is arranged below the connecting assembly, an assembly assembly is arranged above the lower fixing seat 1, a second mounting assembly is arranged above the assembly assembly, a measuring assembly is arranged on the inner side of the lower fixing seat 1, a plurality of measuring assemblies are arranged, a display assembly is arranged on one side of the lower fixing seat 1, a plurality of display assemblies are arranged; the fixing assembly comprises a first fixing plate 101, a first fixing bolt 102, an internal threaded tube 103, a fixing gasket 104, a test screw 105 and a fixing block 106; a first fixing plate 101 is provided above the lower fixing seat 1, a first fixing bolt 102 is provided on the inner side of the first fixing plate 101, the first fixing bolt 102 is threadedly connected to the lower fixing seat 1, multiple groups of first fixing bolts 102 are provided, an internal threaded tube 103 is provided on the inner side of the lower fixing seat 1, a fixing gasket 104 is provided above the internal threaded tube 103, a test screw 105 is provided on the inner side of the internal threaded tube 103, the test screw 105 is threadedly connected to the internal threaded tube 103, and a fixing block 106 is provided on the outer side of the test screw 105.

[0025] See also Figure 2-Figure 5In this embodiment, the connecting assembly includes a second fixing plate 201 and a second fixing bolt 202; a second fixing plate 201 is provided below the lower fixing seat 1, and a second fixing bolt 202 is provided on the inner side of the second fixing plate 201. The second fixing bolt 202 is threadedly connected to the second fixing plate 201. When in use, the lower fixing seat 1 and the second fixing plate 201 are connected and fixed by rotating the second fixing bolt 202. The first mounting assembly includes a first mounting block 301 and a first mounting hole 302; a first mounting block 301 is provided below the second fixing plate 201, and a first mounting hole 302 is provided on the inner side of the first mounting block 301. Mounting hole 302, when in use, the first mounting block 301 and the first mounting hole 302 are directly connected with the lower hydraulic clamp mouth of the tensile testing machine, so as to connect the device and the lower hydraulic clamp seat of the tensile testing machine. The assembly component includes an upper fixing seat 401 and a mounting slot 402. An upper fixing seat 401 is arranged above the test screw 105, and a mounting slot 402 is provided on the inner side of the upper fixing seat 401. When in use, the tensile testing machine is operated during the load holding force test by matching the mounting slot 402 and the fixing block 106. The mounting slot 402 pulls the fixing block 106 to detect the load holding force of the test screw 105.

[0026] The second mounting assembly includes a second mounting block 501 and a second mounting hole 502; a second mounting block 501 is provided above the upper fixing seat 401, and a second mounting hole 502 is provided on the inner side of the second mounting block 501. When in use, the second mounting block 501 and the second mounting hole 502 are directly connected to the upper hydraulic clamping mouth of the tensile testing machine, thereby connecting the device to the upper hydraulic clamping seat of the tensile testing machine. The measuring assembly includes a first mounting plate 601 and a laser rangefinder 602; a second mounting block 501 is provided on the inner side of the lower fixing seat 1. A mounting plate 601 is provided above the first mounting plate 601. A laser rangefinder 602 is provided above the first mounting plate 601. When in use, the position of the laser rangefinder 602 is fixed by the first mounting plate 601. By starting the laser rangefinder 602, the distance between the laser emission point of the laser rangefinder 602 and the lower end of the first fixing bolt 102 can be measured. Multiple sets of laser rangefinders 602 can measure the distance between the laser emission points of multiple sets of laser rangefinders 602 and the lower ends of multiple sets of first fixing bolts 102. The display assembly includes a second mounting plate 7. 01 and display panel 702, a second mounting plate 701 is provided on one side of the lower fixing seat 1, a display panel 702 is provided on one side of the second mounting plate 701, the display panel 702 and the multiple groups of laser rangefinders 602 correspond one to one, when in use, the display panel 702 displays the data measured by the corresponding laser rangefinder 602, by comparing the distances between the laser emission points of the multiple groups of laser rangefinders 602 and the lower ends of the multiple groups of first fixing bolts 102, when the deviation of the multiple groups of distance values ​​is too large, the first fixing plate 101 will be fixed to the fixing gasket The fixation of 104 produces different height deviations. This can be achieved by comparing the distances between the laser emission points of multiple groups of laser rangefinders 602 and the lower ends of multiple groups of first fixing bolts 102. If the numerical deviation of the multiple groups of distances is too large, rotate the first fixing bolt 102 and adjust the distance between the laser emission point of the laser rangefinder 602 and the lower end of the first fixing bolt 102 to prevent the first fixing plate 101 from producing different height deviations in the fixation of the fixing gasket 104, which may cause the screw to tilt when the load holding force test is performed on the test screw 105, affecting the normal detection results.

[0027] During operation, first, the first fixing plate 101 and the lower fixing seat 1 are connected and fixed by rotating the first fixing bolt 102. When the first fixing plate 101 and the lower fixing seat 1 are connected and fixed, an extrusion force is generated to clamp and fix the fixing gasket 104, thereby fixing the position of the internal threaded tube 103. The test screw 105 is installed in the clamping structure by passing the test screw 105 through the fixing block 106 and rotating the test screw 105 and the internal threaded tube 103 to connect and fix them.

[0028] After the test screw 105 is installed, the lower fixing seat 1 and the second fixing plate 201 are connected and fixed by rotating the second fixing bolt 202. The first mounting block 301 and the first mounting hole 302 are directly connected to the lower hydraulic jaw of the tensile testing machine, thereby connecting the device to the lower hydraulic jaw seat of the tensile testing machine.

[0029] After the device is connected to the lower hydraulic jaw seat of the tensile testing machine, the tensile testing machine operates during the load holding force test by matching the mounting slot 402 and the fixed block 106. The mounting slot 402 pulls the fixed block 106 to detect the load holding force of the test screw 105. The second mounting block 501 and the second mounting hole 502 are directly matched with the upper hydraulic jaw port of the tensile testing machine to connect the device to the upper hydraulic jaw seat of the tensile testing machine.

[0030] Through the above steps, the first fixing plate 101 and the lower fixing seat 1 are connected and fixed by rotating the first fixing bolt 102. When the first fixing plate 101 and the lower fixing seat 1 are connected and fixed, an extrusion force is generated to clamp and fix the fixing gasket 104, thereby fixing the position of the internal threaded tube 103. The test screw 105 is passed through the fixing block 106 and the test screw 105 and the internal threaded tube 103 are rotated to connect and fix them, thereby installing the test screw 105 in the clamping structure. The method of first fixing the product in the fixture and then fixing the fixture structure on the hydraulic caliper of the tensile testing machine can prevent traditional direct hydraulic caliper clamping, and can effectively avoid the situation where there are often obvious clamping marks on the appearance of the tested product, thereby ensuring the accuracy of the test results.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. An auxiliary tool for detecting and testing the thread holding force, comprising a lower fixing seat (1); characterized in that: The device further comprises a fixing assembly, a connecting assembly, a first mounting assembly, an assembly assembly, a second mounting assembly, a measuring assembly and a display assembly; a fixing assembly is arranged above the lower fixing seat (1), a connecting assembly is arranged below the lower fixing seat (1), a first mounting assembly is arranged below the connecting assembly, an assembly assembly is arranged above the lower fixing seat (1), a second mounting assembly is arranged above the assembly assembly, a measuring assembly is arranged on the inner side of the lower fixing seat (1), and a plurality of measuring assemblies are arranged; a display assembly is arranged on one side of the lower fixing seat (1), and a plurality of display assemblies are arranged; the fixing assembly comprises a first fixing plate (101), a first fixing bolt (102), an internally threaded pipe (103), a fixing gasket (104 ), a test screw (105) and a fixing block (106); a first fixing plate (101) is provided above the lower fixing seat (1), a first fixing bolt (102) is provided on the inner side of the first fixing plate (101), the first fixing bolt (102) and the lower fixing seat (1) are threadedly connected, a plurality of first fixing bolts (102) are provided, an internal threaded tube (103) is provided on the inner side of the lower fixing seat (1), a fixing gasket (104) is provided above the internal threaded tube (103), a test screw (105) is provided on the inner side of the internal threaded tube (103), the test screw (105) and the internal threaded tube (103) are threadedly connected, and a fixing block (106) is provided on the outer side of the test screw (105).

2. The auxiliary tool for thread holding force detection and testing according to claim 1, characterized in that: The connecting assembly comprises a second fixing plate (201) and a second fixing bolt (202); the second fixing plate (201) is arranged below the lower fixing seat (1), the second fixing bolt (202) is arranged on the inner side of the second fixing plate (201), and the second fixing bolt (202) and the second fixing plate (201) are threadedly connected.

3. The auxiliary tool for thread holding force detection and testing according to claim 2, characterized in that: The first mounting assembly comprises a first mounting block (301) and a first mounting hole (302); the first mounting block (301) is arranged below the second fixing plate (201), and the first mounting hole (302) is opened on the inner side of the first mounting block (301).

4. The auxiliary tool for thread holding force detection and testing according to claim 1, characterized in that: The assembly component comprises an upper fixing seat (401) and an installation slot (402); the upper fixing seat (401) is arranged above the test screw (105), and the inner side of the upper fixing seat (401) is provided with an installation slot (402).

5. The auxiliary tool for thread holding force detection and testing according to claim 4, characterized in that: The second mounting assembly comprises a second mounting block (501) and a second mounting hole (502); the second mounting block (501) is arranged above the upper fixing seat (401), and the second mounting hole (502) is opened on the inner side of the second mounting block (501).

6. The auxiliary tool for thread holding force detection and testing according to claim 1, characterized in that: The measuring assembly comprises a first mounting plate (601) and a laser rangefinder (602); the first mounting plate (601) is arranged on the inner side of the lower fixing seat (1), and the laser rangefinder (602) is arranged above the first mounting plate (601).

7. The auxiliary tool for thread holding force detection and testing according to claim 1, characterized in that: The display assembly comprises a second mounting plate (701) and a display panel (702); the second mounting plate (701) is provided on one side of the lower fixing seat (1); the display panel (702) is provided on one side of the second mounting plate (701); and the display panel (702) corresponds to the plurality of laser rangefinders (602) in a one-to-one manner.

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