CN217406056U - Cable straightening device for resistance detection - Google Patents
Cable straightening device for resistance detection Download PDFInfo
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- CN217406056U CN217406056U CN202220094618.9U CN202220094618U CN217406056U CN 217406056 U CN217406056 U CN 217406056U CN 202220094618 U CN202220094618 U CN 202220094618U CN 217406056 U CN217406056 U CN 217406056U
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Abstract
The utility model provides a cable coalignment for resistance detects, this cable coalignment includes: the working platform comprises a plane section and a groove section; the first fixing clamp is arranged at one end, far away from the groove section, of the working platform and is fixedly connected with the working platform; the movable clamp is arranged in the groove section and can move in the groove section; the pair of second fixing clamps are arranged between the first fixing clamp and the moving clamp and are positioned at two ends of the working platform, and the second fixing clamps are fixedly connected with the working platform; the first fixing clamp and the moving clamp are identical in structure. Move in the recess section through removing anchor clamps repeatedly will wait to flare-out the cable back of flare-outing, carry out resistance detection to the cable between a pair of second mounting fixture, can effectively flare-out the cable, improve the degree of accuracy that cable resistance detected.
Description
Technical Field
The utility model relates to a cable alignment technical field especially relates to a cable coalignment for resistance detection.
Background
The unqualified items of the electric wire and the electric cable in the current market relate to various aspects of standard requirements, mainly include an electrical property test, particularly conductor resistance, wherein the conductor resistance is one of important indexes of the electrical property of the electric wire and the electric cable for electrical equipment, generally, the conductor resistance is required to be small so as to reduce line loss, individual special products require the resistance to be within a certain range (such as a high-voltage damping ignition wire), some products do not have strict resistance requirements (such as a miner hat lamp wire, a blasting wire and the like), and the resistance of the conductor is specified in the standard that the direct current resistance is not more than a certain value or the direct current resistivity is not more than a specified value. In the detection of the conductor resistance, this is a critical technical test standard item for electrical equipment such as cables and wires, and has been used as a routine technical test. In order to obtain greater economic benefit, part of illegally operated wire and cable production enterprises manufacture substandard electronic products for sale, and various factors determine that the quality level of the electronic products in the social market can be ensured only by reasonable and effective detection and analysis before the wire and cable products enter the market for use.
At present, GB/T3048.4-2007 part 4 of the wire and cable performance test method is mostly adopted for measuring the conductor resistance of the cable: according to the method in the conductor direct current resistance test, when the method is used for detecting the resistance of a cable conductor, the cable core needs to be straightened, and many laboratories do not have professional equipment for straightening the cable core, so that the straightening is basically carried out by simple manual stretching or wire clamping pliers.
Therefore, there is a need to develop a cable straightening device for resistance detection, which can effectively straighten the cable and improve the accuracy of the resistance detection of the cable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore, the utility model provides a cable coalignment for resistance detection.
In view of this, the utility model provides a cable coalignment for resistance detection, the cable coalignment includes:
a work platform comprising a planar section and a groove section;
the first fixing clamp is arranged at one end, far away from the groove section, of the working platform and is fixedly connected with the working platform;
the movable clamp is arranged in the groove section and can move in the groove section;
the pair of second fixing clamps are arranged between the first fixing clamp and the moving clamp, are positioned at two ends of the working platform and are fixedly connected with the working platform;
wherein the first fixing clamp and the moving clamp have the same structure.
Furthermore, an electric sliding block is arranged in the groove section and fixedly connected with the movable clamp.
Furthermore, a first screw rod is arranged in the groove section, one end of the first screw rod faces one end of the groove section through a bearing, the other end of the first screw rod extends out of one end of the groove section, the other end of the first screw rod is far away from the plane section, a large nut is arranged on the first screw rod, the movable clamp is fixedly connected with the large nut, and a handle is arranged on the first screw rod extending out of the groove section.
Further, the second fixing jig includes:
the first bottom plate is provided with a first hollow box body;
the second screw rod penetrates through the first hollow box body along the width direction of the working platform, and one end of the second screw rod is provided with a handle;
the pair of small nuts are arranged on the second screw rod, the pair of small nuts are positioned in the first hollow box body, and the rotating directions of internal threads of the pair of small nuts are opposite;
the clamping plates are fixedly arranged on the small nuts respectively, arc-shaped openings are formed in one opposite sides of the clamping plates respectively, the positions of the arc-shaped openings are corresponding, and the clamping plates are arranged in a staggered mode.
Further, the first fixing jig includes:
the second bottom plate is provided with a second hollow box body;
the third screw rod penetrates through the second hollow box body along the width direction of the working platform, and one end of the third screw rod is provided with a handle;
the pair of small nuts are arranged on the third screw rod and are positioned in the second hollow box body, and the rotating directions of the internal threads of the pair of small nuts are opposite;
the clamping blocks are provided with clamping pieces, arc-shaped openings are formed in the clamping pieces, the clamping pieces are respectively fixedly connected with the small nuts in a pair, and the clamping pieces on the clamping blocks are arranged in a staggered mode.
Furthermore, a rubber sheet is arranged on the arc-shaped opening.
Furthermore, a ruler is arranged in the length direction of the working platform and is positioned in the center of the working platform in the width direction.
Furthermore, a temperature and humidity meter is arranged on the working platform.
The utility model provides a technical scheme can include following beneficial effect:
the cable that will wait to flare out through first mounting fixture and the second mounting fixture that is close to first mounting fixture presss from both sides tightly, removes in the recess section through removing anchor clamps repeatedly and will wait to flare out the cable and flare out the back, is close to the second mounting fixture who removes anchor clamps one end and presss from both sides tight cable again, then carries out resistance detection to the cable between a pair of second mounting fixture, can effectively flare out the cable, improves the degree of accuracy that cable resistance detected.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 illustrates a side view of a cable straightening device for resistance detection according to an embodiment of the present invention;
fig. 2 illustrates a top view of a cable alignment device for resistance detection according to an embodiment of the present invention;
figure 3 shows a schematic view of a second holding clamp according to an embodiment of the present invention;
figure 4 shows a schematic view of a first holding clamp according to an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
1 work platform, 101 plane section, 102 groove section, 2 first mounting fixture, 201 second bottom plate, 202 third screw rod, 203 clamp splice, 204 clamping piece, 205 arc mouth, 206 rubber piece, 3 removal anchor clamps, 4 second mounting fixture, 401 first bottom plate, 402 second screw rod, 403 splint, 5 scales, 6 first screw rod, 7 big nuts.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Examples
Fig. 1 illustrates a side view of a cable straightening device for resistance detection according to an embodiment of the present invention;
fig. 2 shows a top view of a cable straightening device for resistance detection according to an embodiment of the present invention.
As shown in fig. 1 and 2, the present embodiment proposes a cable straightening device for resistance detection, which includes:
the working platform 1, the working platform 1 includes a plane section 101 and a groove section 102;
the first fixing clamp 2 is arranged at one end, far away from the groove section 102, of the working platform 1, and the first fixing clamp 2 is fixedly connected with the working platform 1;
the movable clamp 3 is arranged in the groove section 102, and the movable clamp 3 can move in the groove section 102;
the pair of second fixing clamps 4 are arranged between the first fixing clamp 2 and the moving clamp 3, the pair of second fixing clamps 4 are positioned at two ends of the working platform 1, and the second fixing clamps 4 are fixedly connected with the working platform 1;
the first fixing clamp 2 and the moving clamp 3 are identical in structure.
The cable that will wait to flare out through first mounting fixture 2 and second mounting fixture 4 that is close to first mounting fixture 2 presss from both sides tightly, moves repeatedly in groove section 102 through removing anchor clamps 3 and will wait to flare out the cable and flare out the back, is close to second mounting fixture 4 that removes 3 one ends of anchor clamps and presss from both sides tight cable again, then carries out resistance detection to the cable between a pair of second mounting fixture 4, can effectively flare out the cable, improves the degree of accuracy that cable resistance detected.
Specifically, the cable to be straightened is clamped through the first fixing clamp 2 and the second fixing clamp 4 close to the first fixing clamp 2, the movable clamp 3 is firstly positioned at one end close to the second fixing clamp 4 and clamps the other end of the cable to be straightened, then the movable clamp 3 is moved to one end far away from the second fixing clamp 4, then the movable clamp 3 is loosened to the cable to be straightened, the movable clamp 3 returns to one end close to the second fixing clamp 4 again, the process is repeated until the cable to be straightened is straightened, the other end of the cable to be straightened is clamped through the second fixing clamp 4 close to one end of the movable clamp 3, then resistance detection is carried out on the cables on the first fixing clamp 2, the second fixing clamp 4 and the movable clamp 3, the detection of the cable resistance is realized, and the accuracy of the resistance detection is improved.
Further, an electric sliding block is arranged in the groove section 102 and is fixedly connected with the movable clamp 3.
It should be noted that the reciprocating motion of the moving clamp 3 in the groove section 102 can be realized by providing an electric slider in the groove section 102.
Further, be equipped with first screw rod 6 in groove section 102, the one end of first screw rod 6 and plane section 101 pass through the bearing with the one end of groove section 102 orientation and are connected, and the other end of first screw rod 6 stretches out the one end that groove section 102 kept away from plane section 101, is equipped with big nut 7 on the first screw rod 6, removes anchor clamps 3 and big nut 7 fixed connection, is equipped with the handle on the first screw rod 6 that stretches out groove section 102.
It should be noted that the first screw 6 includes a screw thread section and plane sections at two ends, and by forward and reverse rotation of the first screw 6, linear motion of the large nut 7 on the first screw 6 is realized, so as to drive the moving fixture 3 on the large nut 7 to move on the groove section 102, where fig. 1 and 2 show schematic diagrams in which the first screw 6 and the large nut 7 drive the moving fixture 3 to move.
Figure 3 shows a schematic view of a second holding clamp according to an embodiment of the invention.
As shown in fig. 3, the second fixing jig 4 includes:
a first bottom plate 401, wherein a first hollow box body is arranged on the first bottom plate 401;
a second screw 402 which penetrates through the first hollow box body along the width direction of the working platform 1, and one end of the second screw 402 is provided with a handle;
a pair of small nuts are arranged on the second screw rod 402, the pair of small nuts are positioned in the first hollow box body, and the rotating directions of internal threads of the pair of small nuts are opposite;
the clamping plates 403 and the pair of clamping plates 403 are respectively fixedly arranged on the pair of small nuts, arc-shaped openings are respectively formed in the opposite sides of the pair of clamping plates 403, the positions of the arc-shaped openings correspond to each other, and the pair of clamping plates 403 are arranged in a staggered mode.
It should be noted that, the first bottom plate 401 of the second fixing clamp 4 is fixedly connected to the working platform 1, and since the turning directions of the internal threads of the pair of small nuts are opposite, the second screw 402 is rotated forward and backward by the handle to realize the relative movement or the opposite movement of the pair of small nuts, and further to realize the clamping or the releasing of the cables to be straightened by the clamping plates 403, wherein the opposite sides of the pair of clamping plates 403 are respectively provided with an arc-shaped opening, the positions of the arc-shaped openings are corresponding, and the pair of clamping plates 403 are arranged in a staggered manner, so that the clamping and the releasing of the cables with different diameters can be realized.
The handle can be a disc fixed to one end of the second screw 402, and a cylindrical bar is arranged at one end of the disc, which is away from the second screw 402, so that the force of the worker for rotating the second screw 402 is reduced.
Figure 4 shows a schematic view of a first holding clamp according to an embodiment of the invention.
As shown in fig. 4, the first fixing jig 2 includes:
a second bottom plate 201, wherein a second hollow box body is arranged on the second bottom plate 201;
a third screw 202 penetrating through the second hollow box body along the width direction of the working platform 1, wherein one end of the third screw 202 is provided with a handle;
a pair of small nuts are arranged on the third screw 202, the pair of small nuts are positioned in the second hollow box body, and the rotating directions of internal threads of the pair of small nuts are opposite;
the clamping blocks 203 are provided with clamping pieces 204, the clamping pieces 204 are provided with arc-shaped openings 205, the clamping pieces 203 are fixedly connected with a pair of small nuts respectively, and the clamping pieces 204 on the clamping blocks 203 are arranged in a staggered mode.
The working principle of the first fixing clamp 2 is the same as that of the second fixing clamp 4, the second bottom plate 201 of the first fixing clamp 2 is fixedly connected with the working platform 1, the turning directions of the internal threads of the pair of small nuts are opposite, the third screw 202 is rotated in the forward direction and the reverse direction through the handle, relative movement or opposite movement of the pair of small nuts is achieved, and then clamping or loosening of cables to be straightened through the clamping blocks 203 is achieved, wherein the clamping blocks 203 are provided with the clamping pieces 204, the arc-shaped openings 205 are formed in the clamping pieces 204, the clamping pieces 204 on the pair of clamping blocks 203 are arranged in a staggered mode, and clamping and loosening of cables with different diameters can be achieved.
It should be noted that the clamping blocks 203 and 403 are made of copper, which is beneficial to directly detecting the resistance of the cable after clamping the cable, wherein the clamping blocks 403 and 203 on the first stationary fixture 2, the pair of second stationary fixtures 4 and the movable fixture 3 are directly connected to the dc double-arm bridge through connecting wires (connecting wires between corresponding current and voltage ends), when detecting the resistance of the cable, attention should be paid to eliminating the measurement error caused by the contact potential and the thermoelectric potential, a current commutation method should be adopted to read a forward reading and a reverse reading, and an arithmetic mean value should be taken; or a balance point method (compensation method) is adopted, after the galvanometer is connected into the circuit, the current is zeroed under the condition that the current is not closed, and the galvanometer basically cannot observe impact when the current is closed. The above methods are all prior art, and the detection method is obviously known to those skilled in the art, so they are not described in detail.
Further, a rubber sheet 206 is arranged on the arc-shaped opening 205.
The rubber sheet 206 arranged on the arc-shaped opening 205 can prevent the cable from being damaged when being clamped, and the integrity of the cable can be ensured.
Further, a scale 5 is arranged along the length direction of the working platform 1, and the scale 5 is located at the center of the working platform 1 in the width direction.
The scale 5 is arranged to measure the distance between the pair of second fixing clamps 4, so as to ensure that the distance between the pair of second fixing clamps 4 is at least 1 meter. The reason is that the measurement of the resistance of a conductor (cable) is required to be measured on a cable sample having a length of at least 1 meter according to appendix A of GB/T3956-2008 "conductors of Cable".
Furthermore, a temperature and humidity meter is arranged on the working platform 1.
Through the setting of a temperature and humidity meter (not shown), the air temperature and humidity during detection can be known in time, which is because according to GB/T3048.4-2007 part 4 of the wire and cable performance test method: conductor direct current resistance test 5.1 requirement of test environment temperature: the sample should be placed in a test environment with a temperature of 15 ℃ to 25 ℃ and an air humidity of not more than 85% for a sufficient period of time, and the change in the environmental temperature should not exceed +/-1 ℃ during the sample placement and the test.
Therefore, a temperature and humidity meter is arranged on the cable straightening device, so that more accurate cable resistance can be obtained.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (8)
1. A cable alignment apparatus for resistance testing, the cable alignment apparatus comprising:
a work platform comprising a planar section and a groove section;
the first fixing clamp is arranged at one end, far away from the groove section, of the working platform and is fixedly connected with the working platform;
the movable clamp is arranged in the groove section and can move in the groove section;
the pair of second fixing clamps are arranged between the first fixing clamp and the moving clamp, are positioned at two ends of the working platform and are fixedly connected with the working platform;
wherein the first fixing clamp and the moving clamp have the same structure.
2. The cable straightening device for resistance detection according to claim 1, wherein an electrical slider is arranged in the groove section, and the electrical slider is fixedly connected with the movable clamp.
3. The cable straightening device for resistance detection according to claim 1, wherein a first screw is disposed in the groove section, one end of the first screw is connected to one end of the planar section, which faces the groove section, through a bearing, the other end of the first screw extends out of one end of the groove section, which is away from the planar section, a large nut is disposed on the first screw, the movable clamp is fixedly connected to the large nut, and a handle is disposed on the first screw extending out of the groove section.
4. The cable straightening device for resistance detection according to claim 1, wherein the second fixing clamp comprises:
the first bottom plate is provided with a first hollow box body;
the second screw penetrates through the first hollow box body along the width direction of the working platform, and one end of the second screw is provided with a handle;
the pair of small nuts are arranged on the second screw rod, the pair of small nuts are positioned in the first hollow box body, and the rotating directions of internal threads of the pair of small nuts are opposite;
the clamping plates are fixedly arranged on the small nuts respectively, arc-shaped openings are formed in one opposite sides of the clamping plates respectively, the positions of the arc-shaped openings are corresponding, and the clamping plates are arranged in a staggered mode.
5. The cable straightening device for resistance detection according to claim 1, wherein the first fixing clamp comprises:
the second bottom plate is provided with a second hollow box body;
the third screw penetrates through the second hollow box body along the width direction of the working platform, and one end of the third screw is provided with a handle;
the pair of small nuts are arranged on the third screw rod and are positioned in the second hollow box body, and the rotating directions of the internal threads of the pair of small nuts are opposite;
the clamping blocks are provided with clamping pieces, arc-shaped openings are formed in the clamping pieces, the clamping pieces are respectively fixedly connected with the small nuts in a pair, and the clamping pieces on the clamping blocks are arranged in a staggered mode.
6. The cable straightening device for the resistance detection according to claim 4 or 5, wherein a rubber sheet is arranged on the arc-shaped opening.
7. The cable straightening device for resistance detection according to any one of claims 1 to 5, wherein a scale is arranged along the length direction of the working platform, and the scale is positioned at the center of the width direction of the working platform.
8. The cable straightening device for the resistance detection according to any one of claims 1 to 5, wherein a temperature and humidity meter is arranged on the working platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220094618.9U CN217406056U (en) | 2022-01-14 | 2022-01-14 | Cable straightening device for resistance detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220094618.9U CN217406056U (en) | 2022-01-14 | 2022-01-14 | Cable straightening device for resistance detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217406056U true CN217406056U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220094618.9U Active CN217406056U (en) | 2022-01-14 | 2022-01-14 | Cable straightening device for resistance detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217406056U (en) |
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- 2022-01-14 CN CN202220094618.9U patent/CN217406056U/en active Active
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