CN118857965A - A cable retention force test bench - Google Patents

Abstract

The invention discloses a cable retention test stand, which comprises a test stand and a test stand arranged on the test stand, wherein a displacement adjusting assembly is arranged in the test stand, the test stand is fixedly arranged at the top of a moving end of the displacement adjusting assembly, and a digital display tension meter is fixedly arranged at the top of the test stand. This cable holding power testboard through the setting of test stand, displacement adjustment subassembly and testboard, realizes the convenient displacement adjustment of testboard, cooperates the setting of digital display tensiometer, joint spare and card frame, realizes the traction and holding power test to radio frequency cable spare, when holding power data test is accurate, has light in weight and convenient advantage of removal, is adapted to the scene test of a wider range to through the setting of drive adjustment subassembly, when the test is more laborsaving, can also make things convenient for the observation of tester to holding power data, it is more convenient to use.

Description

A cable retention force test bench

Technical Field

The invention relates to the technical field of radio frequency cable retention force testing, in particular to a cable retention force testing platform.

Background Art

In the environmental test of RF cable assemblies, cable retention force test has always been a common test. At present, the main test methods are to use microcomputer-controlled electronic universal testing machines and hanging weights. Both methods have their own limitations in the test. The microcomputer-controlled electronic universal testing machines used in the industry have limited opening and test stroke of the clamping device, which limits the size of the RF cable assembly plug to not be too large, the assembly length to not be too long, and the length of the test sample generally cannot exceed half a meter. In addition, the testing machine is a large-scale testing equipment and cannot be moved at will, so the test scene is limited. The hanging weight test method cannot be digitally displayed, so it is often difficult to detect when the cable assembly is slightly elongated, and the accuracy of the test results cannot be ensured. Based on this, a cable retention force test bench is proposed, which is light in weight, easy to move, and suitable for various scene tests. Because it is an open design, it can be used for large-size plugs and long-size test samples of retention test samples. At the same time, the force value can be intuitively seen using a digital dynamometer to ensure the accuracy of the test data.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a cable retention force test bench, which solves the problems raised in the above background technology.

To achieve the above objectives, the present invention is implemented through the following technical solutions: a cable retention force test bench, comprising a test frame and a test bench arranged on the test frame, wherein a displacement adjustment component is arranged in the test frame, the test bench is fixedly mounted on the top of the moving end of the displacement adjustment component, a digital display tensile gauge is fixedly mounted on the top of the test bench, a card frame is fixedly mounted on the test end of the digital display tensile gauge, a card connector is also arranged on the test frame, a radio frequency cable component is clamped between the card frame and the card connector, and a drive adjustment component used in conjunction with the displacement adjustment component is also arranged on the test frame.

The present invention is further configured as follows: the test frame comprises a first support plate and a second support plate, and four positioning rods are fixedly installed between the first support plate and the second support plate by bolts.

The present invention is further configured as follows: the displacement adjustment assembly comprises a threaded rod and a pinion gear with a shaft, a movable platform is sleeved on the outer circumference of the threaded rod and threadedly mounted, and one end of the threaded rod is fixedly connected to one end of the pinion gear with a shaft;

The other end of the threaded rod is rotatably mounted on one side of the first support plate through a bearing, the pinion with shaft penetrates and is rotatably mounted on one side of the second support plate, and the moving platform is sleeved and slidably mounted on the outer periphery of the two positioning rods arranged at the top;

The test bench is fixed on the top of the moving platform by bolts.

The present invention is further configured as follows: the drive adjustment component includes a spline shaft and a large gear with a shaft, one end of the spline shaft is fixedly connected to one end of the large gear with a shaft, at least three drive wheels are sleeved and slidably installed on the outer periphery of the spline shaft, and a plurality of grip holes are evenly spaced on one side of the drive wheel.

The present invention is further configured as follows: the other end of the spline shaft is rotatably mounted on one side of the first support plate through a bearing, the large gear with shaft penetrates and is rotatably mounted on one side of the second support plate, and the large gear with shaft is meshed with the small gear with shaft.

The present invention is further configured as follows: the clamping member comprises a clamping plate, a first clamping groove is provided on the surface of the clamping plate, and a U-shaped fixing plate is fixedly installed on the bottom of the clamping plate;

A second card slot is provided on a side of the card frame away from the digital display dynamometer.

The present invention is further configured as follows: the U-shaped fixing plate is fixedly mounted on the top of the first supporting plate by bolts and nuts, and the first clamping slot and the second clamping slot are both used in conjunction with the radio frequency cable component.

The present invention is further configured as follows: a square blind hole is opened on the top rear side of the first support plate and the second support plate, a ruler is inserted into the two square blind holes, and the scale groove side of the ruler is in sliding contact with one side of the card frame.

The present invention provides a cable retention force test bench having the following beneficial effects:

(1) The present invention realizes convenient displacement adjustment of the test bench by setting up a test frame, a displacement adjustment component and a test bench, and realizes traction and holding force testing of radio frequency cable components by setting up a digital display tensile gauge, a clamping part and a clamping frame. While the holding force data test is accurate, it has the advantages of light weight and easy mobility, and is suitable for a wider range of scene tests. In addition, by setting up a drive adjustment component, the test is more labor-saving and can also facilitate the test personnel to observe the holding force data, making it more convenient to use.

(2) The present invention fixes a card frame on the test end of the digital display tensile gauge, and with the cooperation of the first card slot and the second card slot, convenient positioning of the RF cable component is achieved. The square blind hole and the ruler are arranged in coordination to achieve length monitoring of the RF cable component during the holding force test, thereby providing double protection for the accuracy of obtaining the test data.

(3) The present invention ensures that the driving wheel can move conveniently on the spline shaft through the arrangement of the driving wheel, the spline shaft, the large gear with shaft and the small gear with shaft. At the same time, the small gear with shaft can be driven in rotation, and then the threaded rod can be driven in rotation. This provides convenience for the movement and adjustment of the mobile platform. At the same time, the relative movement of the driving wheel and the mobile platform can be maintained by sliding the driving wheel, which provides convenience for the test personnel to observe the display data of the digital dynamometer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the external structure of the present invention;

FIG2 is a schematic diagram of the structure of a test stand according to the present invention;

FIG3 is a schematic diagram of the connection between the test stand and the displacement adjustment assembly structure of the present invention;

FIG4 is a schematic diagram of the connection between the drive adjustment assembly and the pinion gear structure with shaft of the present invention;

FIG5 is a schematic structural diagram of a driving wheel of the present invention;

6 is a schematic diagram of the structures of the test bench, the digital display dynamometer, the card frame, the second card slot, the card connector and the radio frequency cable component of the present invention;

FIG. 7 is a schematic diagram of the structure of the scale of the present invention.

In the figure:

1. Test stand; 101. First support plate; 102. Second support plate; 103. Positioning rod;

2. Test bench;

3. Displacement adjustment assembly; 301. Threaded rod; 302. Pinion gear with shaft; 303. Moving platform;

4. Digital dynamometer;

5. Card frame; 501. Second card slot;

6. Card connector; 601. Card plate; 602. First card slot; 603. U-shaped fixing plate;

7. RF cable parts;

8. Drive adjustment assembly; 801. Spline shaft; 802. Large gear with shaft; 803. Drive wheel; 804. Grip hole;

9. Square blind hole;

10. Ruler.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Please refer to Figures 1-7, the embodiment of the present invention provides the following technical solutions:

Embodiment 1

A cable retention force test bench comprises a test frame 1 and a test bench 2 arranged on the test frame 1, a digital display tensile gauge 4 is fixedly installed on the top of the test bench 2, a card frame 5 is fixedly installed on the test end of the digital display tensile gauge 4, a second card slot 501 is provided on the side of the card frame 5 away from the digital display tensile gauge 4, a card connector 6 is also provided on the test frame 1, a radio frequency cable component 7 is carded between the card frame 5 and the card connector 6, the card connector 6 comprises a card plate 601, a first card slot 602 is provided on the surface of the card plate 601, a U-shaped fixing plate 603 is fixedly installed on the bottom of the card plate 601, the U-shaped fixing plate 603 is fixedly installed on the test frame 1 by bolts and nuts, and the first card slot 602 and the second card slot 501 are both used in conjunction with the radio frequency cable component 7.

As a preferred solution, in order to achieve the traction of the test bench 2 to test the holding force of the RF cable component 7, a displacement adjustment component 3 is provided in the test frame 1, and the test bench 2 is fixedly installed on the top of the moving end of the displacement adjustment component 3. The displacement adjustment component 3 includes a threaded rod 301 and a pinion 302 with an axis. The outer periphery of the threaded rod 301 is sleeved and threadedly mounted with a moving platform 303. The test bench 2 is fixedly installed on the top of the moving platform 303 by bolts, and one end of the threaded rod 301 is fixedly connected to one end of the pinion 302 with an axis. It is further explained that in order to ensure the convenient assembly of the device, The test stand 1 includes a first support plate 101 and a second support plate 102. Four positioning rods 103 are fixedly installed between the first support plate 101 and the second support plate 102 by bolts. The U-shaped fixing plate 603 is fixedly installed on the top of the first support plate 101 by bolts and nuts. The other end of the threaded rod 301 is rotatably installed on one side of the first support plate 101 through a bearing. The pinion gear 302 with an axis passes through and is rotatably installed on one side of the second support plate 102. In order to ensure the stable movement of the moving platform 303, the moving platform 303 is sleeved and slidably installed on the outer periphery of the two positioning rods 103 set on the top.

As a detailed explanation, the first support plate 101, the second support plate 102, the threaded rod 301 and the positioning rod 103 are all made of stainless steel to ensure their hardness and corrosion resistance to prevent rust. The roughness of the machined outer circle surface of the positioning rod 103 is controlled below Ra1.6μm, and lubricating grease is applied to play a lubricating and dust-proof role to avoid jerking or even jamming of the movable platform 303 when moving.

As a preferred solution, in order to realize the rotational drive of the shaft pinion 302 and facilitate the test personnel to conveniently observe the data displayed on the digital dynamometer 4, a drive adjustment component 8 used in conjunction with the displacement adjustment component 3 is also provided on the test frame 1. Specifically, the drive adjustment component 8 includes a spline shaft 801 and a shaft gear 802, one end of the spline shaft 801 is fixedly connected to one end of the shaft gear 802, and the other end of the spline shaft 801 is rotatably mounted on one side of the first support plate 101 through a bearing. At least three drive wheels 803 are sleeved and slidably mounted on the outer periphery of the spline shaft 801. In order to facilitate the rotation of the drive wheel 803, a plurality of grip holes 804 are evenly spaced on one side of the drive wheel 803. The shaft gear 802 penetrates and is rotatably mounted on one side of the second support plate 102, and the shaft gear 802 is meshed with the shaft pinion 302.

In this embodiment, through the setting of the test frame 1, the displacement adjustment component 3 and the test bench 2, the convenient displacement adjustment of the test bench 2 is realized, and the traction and holding force test of the RF cable component 7 is realized with the setting of the digital display tensile gauge 4, the clamping part and the clamping frame 5. While the holding force data test is accurate, it has the advantages of light weight and easy mobility, and is suitable for a wider range of scenario tests. In addition, through the setting of the drive adjustment component 8, the test is more labor-saving and it can also facilitate the test personnel to observe the holding force data, which is more convenient to use.

Embodiment 2

As an improvement of the previous embodiment, this embodiment is a cable retention force test bench, which also includes a ruler 10. Square blind holes 9 are opened on the top rear sides of the first support plate 101 and the second support plate 102. The ruler 10 is inserted into the two square blind holes 9, and the scale groove side of the ruler 10 is in sliding contact with one side of the card frame 5. The scale groove of the ruler 10 is opened as shown in Figure 7.

The advantage of the second embodiment over the first embodiment is that by coordinating the square blind hole 9 and the ruler 10, the length monitoring of the RF cable component 7 during the holding force test is achieved, thereby providing double protection for the accuracy of obtaining the test data.

When in use, the two ends of the RF cable component 7 are respectively clamped in the first clamping slot 602 and the second clamping slot 501, and then the grip hole 804 is held to rotate the driving wheel 803, and the driving wheel 803 drives the spline shaft 801 to rotate the large gear 802 with shaft, and the large gear 802 with shaft drives the small gear 302 with shaft to rotate the threaded rod 301, and the threaded rod 301 drives the moving platform 303 to move, and the moving platform 303 drives the test platform 2 to make the digital display tensile gauge 4 pull the card frame 5 to move, so that the RF cable component 7 is straightened, and the display data on the digital display tensile gauge 4 is observed according to the tension to be tested, and during the movement of the moving platform 303, the driving wheel 803 is pulled to slide axially on the spline shaft 801, so as to conveniently and timely observe the tension data;

After reaching the target tension value, the scale of the clamping frame 5 corresponding to the scale 10 is recorded as a reference scale.

After the tension is maintained for a certain period of time, observe whether the tension data decreases to achieve the retention test and judgment of the RF cable component 7. When the tension data does not change, it means that the tension test of the current strength has been passed. On the contrary, when the tension data decreases, it means that the RF cable component 7 is deformed.

At the same time, the scale corresponding to the card frame 5 on the ruler 10 is used as the real-time scale for comparison with the reference scale to achieve auxiliary judgment of the holding force test of the RF cable component 7, that is, when the tension data does not change, the real-time scale should be equal to the reference scale. When the real-time scale is greater than the reference scale, it is judged that the digital display tensile gauge 4 is damaged;

Furthermore, by directly comparing the real-time scale with the reference scale, when the real-time scale is larger than the reference scale, it can be determined that the RF cable component 7 is deformed.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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 (8)

1. The utility model provides a cable holding power testboard, includes test stand (1) and sets up testboard (2) on test stand (1), its characterized in that: the test rack (1) is internally provided with a displacement adjusting component (3), the test bench (2) is fixedly arranged at the top of the moving end of the displacement adjusting component (3), the top of the test bench (2) is fixedly provided with a digital display tension meter (4), the test end of the digital display tension meter (4) is fixedly provided with a clamping frame (5), the test rack (1) is also provided with a clamping piece (6), a radio frequency cable piece (7) is clamped between the clamping frame (5) and the clamping piece (6), and the test rack (1) is also provided with a driving adjusting component (8) matched with the displacement adjusting component (3).

2. A cable retention test stand according to claim 1, wherein: the test rack (1) comprises a first support plate (101) and a second support plate (102), and four positioning rods (103) are fixedly arranged between the first support plate (101) and the second support plate (102) through bolts.

3. A cable retention test stand according to claim 2, wherein: the displacement adjusting assembly (3) comprises a threaded rod (301) and a pinion (302) with a shaft, the periphery of the threaded rod (301) is sleeved with a moving table (303) in a threaded manner, and one end of the threaded rod (301) is fixedly connected with one end of the pinion (302) with the shaft;

the other end of the threaded rod (301) is rotatably arranged on one side of the first support plate (101) through a bearing, the pinion (302) with the shaft penetrates through and is rotatably arranged on one side of the second support plate (102), and the movable table (303) is sleeved and slidably arranged on the peripheries of the two positioning rods (103) arranged at the top;

the test bench (2) is fixedly arranged at the top of the movable bench (303) through bolts.

4. A cable retention test stand according to claim 3, wherein: the driving adjusting assembly (8) comprises a spline shaft (801) and a large gear with a shaft (802), one end of the spline shaft (801) is fixedly connected with one end of the large gear with the shaft (802), at least three driving wheels (803) are sleeved on the periphery of the spline shaft (801) in a sliding mode, and a plurality of holding holes (804) are uniformly formed in one side of each driving wheel (803) at intervals.

5. A cable retention test stand according to claim 4, wherein: the other end of the spline shaft (801) is rotatably arranged on one side of the first support plate (101) through a bearing, the large gear (802) with the shaft penetrates through and is rotatably arranged on one side of the second support plate (102), and the large gear (802) with the shaft is meshed with the small gear (302) with the shaft.

6. A cable retention test stand according to claim 2, wherein: the clamping piece (6) comprises a clamping plate (601), a first clamping groove (602) is formed in the surface of the clamping plate (601), and a U-shaped fixing plate (603) is fixedly arranged at the bottom of the clamping plate (601);

a second clamping groove (501) is formed in one side, far away from the digital display tension meter (4), of the clamping frame (5).

7. A cable retention test stand according to claim 6, wherein: the U-shaped fixing plate (603) is fixedly arranged at the top of the first support plate (101) through bolts and nuts, and the first clamping groove (602) and the second clamping groove (501) are matched with the radio frequency cable piece (7) for use.

8. A cable retention test stand according to claim 2, wherein: square blind holes (9) are formed in the rear sides of the tops of the first support plate (101) and the second support plate (102), a scale (10) is inserted into the square blind holes (9) together, and the scale groove side of the scale (10) is in sliding contact with one side of the clamping frame (5).