CN114062251A - Tool and method for detecting holding force of contact finger and quality of coating - Google Patents
Tool and method for detecting holding force of contact finger and quality of coating Download PDFInfo
- Publication number
- CN114062251A CN114062251A CN202010789980.3A CN202010789980A CN114062251A CN 114062251 A CN114062251 A CN 114062251A CN 202010789980 A CN202010789980 A CN 202010789980A CN 114062251 A CN114062251 A CN 114062251A
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- contact finger
- contact
- coating
- quality
- connector
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- 239000011248 coating agent Substances 0.000 title claims abstract description 52
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009864 tensile test Methods 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000007747 plating Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention provides a tool and a method for detecting the holding force of a contact finger and the quality of a coating, wherein the tool for detection comprises the following components: one end of the first connecting head is used for being connected with a movable clamp of the tensile testing machine; the contact is fixedly connected with the other end of the first connecting head; one end of the second connector is used for being connected with a fixing clamp of the tensile testing machine; the contact finger seat is fixedly connected with the other end of the second connector, and is provided with an installation structure for installing a contact finger to be tested; the first connecting head is used for moving along with a movable clamp of the tensile testing machine so as to drive the contact to move up and down and complete opening and closing actions with the contact finger for a certain number of times. The invention measures the holding force of the contact finger under the dynamic working condition, better accords with the real working condition of the contact finger, and realizes the accurate and convenient measurement of the holding force. Meanwhile, after the test is finished, the quality of the coating can be visually judged by observing the coating on the contact finger, other operations on the contact finger are not needed, the detection is very convenient, and the detection result is more accurate.
Description
Technical Field
The invention relates to the technical field of detection of contact fingers for high-voltage switches, in particular to a tool and a detection method for detecting the holding force of the contact fingers and the quality of a coating.
Background
The contact finger is a core part for a GIS/HGIS high-voltage switch and the like, and the part is generally plated with silver on the surface to improve the conductivity so as to reduce the contact resistance. The quality of silver-plating adhesive force of the contact fingers is usually detected by adopting a knife method and a thermal shock test method, wherein when the knife method is used for measuring the adhesive force of the plating layer, working parts such as a conductive surface, a contact surface and the like must be avoided so as to avoid accidentally damaging the working surface, but the knife method still needs to scrape the plating layer, and belongs to destructive detection. The thermal shock test is that the contact finger is heated first and then cooled, and also belongs to a destructive test, and after the thermal shock test is finished, the part can not be used any more. In addition, the two methods for detecting the silver plating adhesion are static measurement methods, and the contact finger is in sliding friction contact with the contact head during actual working, which belongs to dynamic cooperation, so that the traditional detection method cannot completely reflect the dynamic performance of the contact finger during working and has limitation.
In addition, in the prior art, when the tightness degree of the assembly of the contact finger and the contact is detected, the tightness degree can be judged only through the difficulty degree of the insertion of the contact during the assembly, the detection result is completely grasped by manual experience, no quantitative detection standard exists, and the accuracy of the detection result cannot be ensured.
Disclosure of Invention
The invention aims to provide a tool for detecting the holding force of a contact finger and the quality of a coating, which can accurately and conveniently detect the holding force and the quality of the coating under a dynamic working condition; the invention also aims to provide a method for detecting the holding force of the contact finger and the quality of the coating, which can accurately and conveniently detect the holding force and the quality of the coating under the dynamic working condition.
In order to achieve the purpose, the tool for detecting the holding force of the contact fingers and the quality of the coating adopts the following technical scheme:
it embraces power and cladding material quality detection and uses frock to touch the finger, includes:
one end of the first connecting head is used for being connected with a movable clamp of the tensile testing machine;
the contact is fixedly connected with the other end of the first connecting head;
one end of the second connector is used for being connected with a fixing clamp of the tensile testing machine;
the contact finger seat is fixedly connected with the other end of the second connector, and is provided with an installation structure for installing a contact finger to be tested;
the first connecting head is used for moving along with a movable clamp of the tensile testing machine so as to drive the contact to move up and down and complete opening and closing actions with the contact finger for a certain number of times.
The beneficial effects of the above technical scheme are that: the first connector can connect the contact to a movable fixture of the tensile testing machine, the second connector can connect a contact finger seat for mounting a contact finger to be tested to a fixed fixture of the tensile testing machine, and the first connector is used for moving along with the movable fixture of the tensile testing machine, so that the first connector can drive the contact to move up and down to complete opening and closing actions of the contact finger for certain times. Because first connector and second connector are connected and are used on tensile testing machine, consequently the tension numerical value through tensile testing machine record just can obtain the power of hugging closely of touching the finger to what record is the power of hugging closely under dynamic operating condition of touching the finger, more accords with the true operating mode of touching the finger, has realized the accuracy of power of hugging closely, convenient measurement. Meanwhile, after the test is finished, the quality of the coating can be visually judged by observing the coating on the contact finger, other operations on the contact finger are not needed, the detection is very convenient, and the detection result is more accurate.
Further, for the convenience of the second connector with touch the connection between the finger seat, conveniently touch the adjustment transverse position that the finger seat can be when centering with the contact, avoid producing phenomena such as holding back strength, distortion and influence the test result, touch and indicate that power and cladding material quality detect with frock still including connecting the transition piece between touching finger seat and second connector, transition piece includes first connecting piece, first connecting piece has pole portion and head, pole portion with touch finger seat fixed connection, but head and second connector horizontal relative movement's cooperation to the messenger touches the finger seat and can be for second connector lateral shifting.
Furthermore, in order to facilitate the configuration of the first connecting piece and the connection between the first connecting piece and the contact finger seat, the first connecting piece is a first connecting bolt, and the rod part of the first connecting bolt is detachably and fixedly connected with the contact finger seat.
Further, for the convenient lateral shifting that realizes touching the finger seat, convenient assembly and connection, transition connection still includes first connecting block and the second connecting block through the removable fixed together of fastener, be provided with first step hole on the first connecting block, first step hole includes the first big footpath hole that sets up towards the second connecting block and the first aperture hole that links to each other with first big footpath hole, first aperture hole supplies the pole portion of first connecting bolt to pass, first big footpath hole supplies the head of first connecting bolt to sink into, first clearance has between first step hole and the first connecting bolt, first clearance constitutes the horizontal clearance of moving between first connecting bolt and the first connecting block.
Further, in order to facilitate fixed connection between the transition connecting piece and the second connector, a second stepped hole is formed in the second connecting block and comprises a second large-diameter hole and a second small-diameter hole, the second large-diameter hole is arranged towards the first connecting block, the second small-diameter hole is connected with the second large-diameter hole, the transition connecting piece further comprises a second connecting bolt, the second small-diameter hole enables the rod portion of the second connecting bolt to penetrate through, the head portion of the second connecting bolt sinks into the second large-diameter hole, and the rod portion of the second connecting bolt is fixedly connected with the second connector in a detachable mode.
Further, in order to facilitate machining and assembly, the sum of the hole depths of the first large-diameter hole and the second large-diameter hole is larger than the sum of the thicknesses of the heads of the first connecting bolt and the second connecting bolt.
Furthermore, in order to facilitate assembly and flexibly control the transverse movement of the transition connecting piece, a second gap is formed between the second step hole and the second connecting bolt, and the second gap forms a transverse movement gap between the second connecting bolt and the second connecting block.
Furthermore, in order to facilitate connection, a first pin hole is formed in the first connecting head, and the first connecting head is used for being connected with a movable clamp of the tensile testing machine through a first pin shaft.
Furthermore, in order to facilitate connection, a second pin hole is formed in the second connecting head, and the second connecting head is used for being connected with a fixing clamp of the tensile testing machine through a second pin shaft.
In order to achieve the purpose, the method for detecting the holding force of the contact fingers and the quality of the coating adopts the following technical scheme:
the method for detecting the holding force of the contact finger and the quality of the coating comprises the following steps:
firstly, mounting a contact finger to be tested on a contact finger seat;
secondly, connecting the contact finger seat to a fixed clamp of the tensile testing machine, and installing a contact on a movable clamp of the tensile testing machine;
and thirdly, controlling a tensile testing machine to enable the movable clamp to drive the contact to move up and down to complete opening and closing actions with the contact finger for a certain number of times, obtaining the holding force of the contact finger through a tensile value recorded by the tensile testing machine, and judging the quality of the coating by observing the coating on the contact finger.
The beneficial effects of the above technical scheme are that: the contact finger seat is connected to a fixed clamp of the tensile testing machine, and the contact is connected to a movable clamp of the tensile testing machine, so that the contact can move up and down along with the movable clamp to complete opening and closing actions of the contact finger for a certain number of times. Meanwhile, after the test is finished, the quality of the coating can be visually judged by observing the coating on the contact finger, other operations on the contact finger are not needed, the detection is very convenient, and the detection result is more accurate.
Drawings
FIG. 1 is a diagram showing a state of use of a tool for detecting the holding force of a contact finger and the quality of a coating (a tensile testing machine is not shown) in the present invention;
FIG. 2 is a front view of the first connector of FIG. 1;
FIG. 3 is a left side view of the first connector of FIG. 1;
FIG. 4 is a front view of the contact of FIG. 1;
FIG. 5 is a front view of the second connecting block of FIG. 1;
FIG. 6 is a top view of the second connector block of FIG. 1;
FIG. 7 is a front view of the second connecting head of FIG. 1;
fig. 8 is a left side view of the second connecting head in fig. 1.
In the figure: 100-contact; 101-a first threaded hole; 200-a finger; 300-finger pad; 1-a first connector; 11-a first pin hole; 12-a first thread segment; 2-a first connecting bolt; 3-a first connection block; 4-a second connecting block; 41-second step hole; 42-bolt perforation; 5-fixing the bolt; 6-a nut; 7-a second connecting bolt; 8-a second connector; 81-a second threaded hole; 82-second pin hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
One embodiment of the tool for detecting the holding force of the contact fingers and the quality of the coating is shown in fig. 1 and comprises a first connector 1, a contact 100, a contact finger seat 300, a second connector 8 and a transition connector.
The first connector 1 in this embodiment is located above the second connector 8, the upper end of the first connector 1 is used for connecting with a movable clamp (not shown in the figure) of the tensile testing machine, and the lower end is fixedly connected with the contact 100. Specifically, as shown in fig. 2 and fig. 3, the upper portion of the first connection head 1 is provided with a first pin hole 11, the lower portion of the first connection head is provided with a first thread section 12, and the upper end of the first connection head 1 is used for being connected with a movable clamp of a tensile testing machine through a first pin shaft. As shown in fig. 4, the upper end of the contact 100 is provided with a first threaded hole 101, and the first connection head 1 and the contact 100 are detachably and fixedly connected through the first threaded section 12 and the first threaded hole 101.
The contact finger seat 300 is cylindrical, and the contact finger 200 to be tested is mounted on the inner hole wall of the contact finger seat 300, so that the inner hole wall of the contact finger seat 300 forms a mounting structure for mounting the contact finger 200 to be tested.
The lower end of the second connector 8 is used for being connected with a fixing clamp (not shown in the figure) of the tensile testing machine, specifically, as shown in fig. 7 and 8, the lower portion of the second connector 8 is provided with a second pin hole 82, the upper portion of the second connector 8 is provided with a second threaded hole 81, and the second connector 8 is used for being connected with the fixing clamp of the tensile testing machine through a second pin shaft.
Transition connection connects between touching finger seat 300 and second connector 8, and transition connection includes first connecting block 3, second connecting block 4, first connecting piece and second connecting bolt 7, and first connecting piece specifically is first connecting bolt 2. The first connecting block 3 and the second connecting block 4 have the same structure and are arranged in a vertically symmetrical manner, taking the second connecting block 4 as an example, as shown in fig. 5 and 6, the center of the second connecting block 4 is provided with a second stepped hole 41, the second stepped hole 41 comprises a second large-diameter hole arranged towards the first connecting block 3 and a second small-diameter hole connected with the second large-diameter hole, the second small-diameter hole is used for the rod part of the second connecting bolt 7 to pass through, the second large-diameter hole is used for the head part of the second connecting bolt 7 to sink into, during assembly, the rod part of the second connecting bolt 7 passes through the second stepped hole 41 and is in threaded connection with a second threaded hole 81 on the second connector 8, and detachability is achieved.
The first connecting block 3 and the second connecting block 4 are detachably fixed through fasteners, the fasteners in the embodiment include fixing bolts 5 and nuts 6, four bolt through holes 42 are uniformly distributed on the second connecting block 4 around the second stepped hole 41, and correspondingly, four bolt through holes are also formed in the first connecting block 3.
Similarly, be provided with first step hole on the first connecting block 3, first step hole includes the first big footpath hole that sets up towards second connecting block 4 and the first path hole that links to each other with first big footpath hole, and first path hole supplies the pole portion of first connecting bolt 2 to pass, and first big footpath hole supplies the head of first connecting bolt 2 to sink into, and during the assembly, the pole portion of first connecting bolt 2 passes first shoulder hole and the removable fixed connection of finger seat 300.
In the present embodiment, a first gap is formed between the first stepped hole and the first connecting bolt 2, including a gap between the head portion of the first connecting bolt 2 and the first large-diameter hole and a gap between the rod portion of the first connecting bolt 2 and the first small-diameter hole, and the first gap constitutes a lateral movement gap between the first connecting bolt 2 and the first connecting block 3. Meanwhile, a second gap is formed between the second stepped hole and the second connecting bolt 7, and comprises a gap between the head of the second connecting bolt 7 and the second large-diameter hole and a gap between the rod of the second connecting bolt 7 and the second small-diameter hole, and the second gap forms a transverse movable gap between the second connecting bolt 7 and the second connecting block 4.
In the invention, the transition connecting piece is arranged between the contact finger seat 300 and the second connector 8 and is arranged to comprise the first connecting block 3 and the second connecting block 4 which are separated, so that the structure is simplified, the processing and the manufacturing are convenient, the installation of the first connecting bolt 2 and the second connecting bolt 7 is convenient, and the connection between the transition connecting piece and the contact finger seat 300 and the second connector 8 is convenient. And, adopt first shoulder hole and the cooperation of first connecting bolt 2, adopt the cooperation of second shoulder hole and second connecting bolt 7, not only make things convenient for the head of bolt to sink into, make moreover between first connecting bolt 2 and the first connecting block 3 and between second connecting bolt 7 and the second connecting block 4 all have horizontal clearance of moving.
When the device is used, the first connecting head 1 is used for moving up and down along with a movable clamp of a tensile testing machine, so that the contact 100 is driven to move up and down, and opening and closing actions with the contact finger 200 are completed for a certain number of times. Due to the existence of the transverse movement gap, if the contact finger seat 300 is not aligned with the contact 100, the contact finger seat 300 can move transversely relative to the second connector 8, so that the self transverse position can be adjusted in a self-adaptive manner, and the test result is prevented from being influenced by the phenomena of force holding, distortion and the like. Because the first connector 1 and the second connector 8 are connected to a tensile testing machine for use, the holding force of the contact finger 200 can be obtained through the tensile numerical value recorded by the tensile testing machine (when the contact finger is pulled at a constant speed, the tensile force is equal to the sliding friction force, and the sliding friction force and the holding force are in a certain proportion relation), and the measured holding force of the contact finger 200 under the dynamic working condition is more consistent with the real working condition of the contact finger, so that the accurate and convenient measurement of the holding force is realized. Meanwhile, after the test is finished, the quality of the coating can be visually judged by observing the coating on the contact finger 200, other operations on the contact finger 200 are not needed, the detection is very convenient, and the detection result is more accurate.
In the invention, a first gap is formed between the first stepped hole and the first connecting bolt 2, a second gap is formed between the second stepped hole and the second connecting bolt 7, and both the first gap and the second gap can influence the transverse movement of the contact finger seat 300, so that the two gaps can be flexibly controlled and applied in practical application, and the convenient measurement of the contact finger clasping force is realized.
In addition, the sum of the hole depths of the first large-diameter hole and the second large-diameter hole is greater than the sum of the thicknesses of the heads of the first connecting bolt 2 and the second connecting bolt 7, so that on one hand, the processing and the assembly are convenient, on the other hand, as shown in fig. 1, when the contact 100 and the contact finger 200 are not inserted, the heads of the first connecting bolt 2 and the second connecting bolt 7 are abutted together, when the contact 100 is inserted into the contact finger 200, the heads of the two bolts are abutted to bear force, when the contact 100 is withdrawn from the contact finger 200, the first connecting bolt 2 drives the first connecting block 3 and the second connecting block 4 to move upwards until the head of the second connecting bolt 7 is in stop fit with the second connecting block 4, so that before the contact 100 is separated from the contact finger 200, the first connecting block 3 and the second connecting block 4 have a certain displacement, and by observing the displacement phenomenon, the contact 100 is known to be separated from the contact finger 200 in advance, thereby being convenient for control the tensile testing machine.
The embodiment of the method for detecting the holding force of the contact fingers and the quality of the coating is shown in the combined figure 1 and comprises the following steps:
in a first step, the finger 200 to be tested is mounted on the finger holder 300.
And secondly, connecting the contact finger seat 300 to a fixed clamp of the tensile testing machine, and installing the contact 100 on a movable clamp of the tensile testing machine. Specifically, the contact 100 in this embodiment is mounted on the first connector 1, and the first connector 1 is connected to a movable clamp of the tensile testing machine through a first pin. In addition, the contact finger seat 300 is connected with a second connector 8 through a transition connector, the second connector 8 is connected with a fixing clamp of the tensile testing machine through a second pin shaft, and the structural composition of the transition connector refers to the embodiment of the tool for detecting the holding force of the contact finger and the quality of the coating, and is not repeated here.
And thirdly, controlling the tensile testing machine to enable the movable clamp to drive the first connector 1 and further drive the contact 100 to move up and down, completing opening and closing actions with the contact finger 200 for a certain number of times, obtaining the holding force of the contact finger 200 through the tensile numerical value recorded by the tensile testing machine, and judging the quality of the coating by observing the coating on the contact finger 200.
Because the tension testing machine is adopted for testing, the holding force of the contact finger can be obtained through the tension numerical value recorded by the tension testing machine (when the contact finger is pulled at a constant speed, the tension is equal to the sliding friction force, and the sliding friction force and the holding force are in a certain proportion relation), and the measured holding force of the contact finger under the dynamic working condition is more consistent with the real working condition of the contact finger, so that the accurate and convenient measurement of the holding force is realized. Meanwhile, after the test is finished, the quality of the coating can be visually judged by observing the coating on the contact finger, other operations on the contact finger are not needed, the detection is very convenient, and the detection result is more accurate.
In other embodiments of the method for detecting the holding force of the contact finger and the quality of the coating, a pin hole can be processed on the contact, so that the contact is directly connected to a movable clamp of the tensile testing machine through a pin shaft.
In other embodiments of the method for detecting the holding force of the contact finger and the quality of the coating, a transition connecting piece can be omitted, and a pin hole is processed on the contact finger seat, so that the contact finger seat is directly connected to a fixed clamp of a tensile testing machine through a pin shaft.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, for the contact finger which needs to be installed on the outer wall surface, the installation structure on the contact finger seat is the outer wall surface of the contact finger seat, and at the moment, the contact is provided with the jack.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, for a tensile testing machine with a fixed clamp at the upper part and a movable clamp at the lower part, the first connector is positioned below the second connector.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, for a movable clamp of the tensile testing machine which is not connected with the pin shaft, for example, the movable clamp is fixed by holding and clamping, and at this time, the clamping part is arranged on the first connecting head.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, for a fixing clamp of the tensile testing machine which is not connected with the pin shaft, for example, a fixing clamp fixed by holding clamps, a clamping part is arranged on the second connecting head.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, a transverse movable gap may not be formed between the second stepped hole and the second connecting bolt, and the second stepped hole is only enough for the second connecting bolt to pass through.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, the sum of the hole depths of the first large-diameter hole and the second large-diameter hole may be equal to the sum of the thicknesses of the heads of the first connecting bolt and the second connecting bolt.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the coating, the second connecting block may not be provided with the second stepped hole, and a stud may be welded or integrally processed on the second connecting block so as to be directly connected with the second connector.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the plating layer, the transition connecting piece does not comprise the first connecting block and the second connecting block, the transition connecting piece only comprises the first connecting bolt, the first connecting bolt can adopt a T-shaped bolt, the rod part of the T-shaped bolt is in threaded connection with the contact finger seat, a T-shaped groove is machined in the second connecting head at the moment, the head part of the T-shaped bolt is limited in the T-shaped groove, the connection between the T-shaped bolt and the second connecting head is realized, and the transverse fit clearance between the T-shaped groove and the T-shaped bolt is used for ensuring that the contact finger seat can transversely move relative to the second connecting head.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the plating layer, the first connecting piece is not a bolt, the rod part of the first connecting piece is a polished rod, the rod part of the first connecting piece can be directly welded and fixed with the contact finger seat, the T-shaped groove needs to be machined on the second connecting head, the head part of the first connecting piece is limited in the T-shaped groove, the connection between the first connecting piece and the second connecting head is realized, and the contact finger seat can move transversely relative to the second connecting head through the transverse fit clearance between the T-shaped groove and the head part.
In other embodiments of the tool for detecting the clasping force of the contact finger and the quality of the coating, the tool for detecting the clasping force of the contact finger and the quality of the coating does not include a transition connector, and the contact finger seat is directly and fixedly connected with the second connector, for example, a stud can be directly welded and fixed on the contact finger seat or integrally processed, so that the stud is directly in threaded connection with the second connector, or the contact finger seat and the second connector can be directly welded and fixed.
In other embodiments of the tool for detecting the holding force of the contact fingers and the quality of the coating, the first connecting head and the contact can also be directly welded and fixed.
Claims (10)
1. It embraces power and cladding material quality detection and uses frock to touch the finger, its characterized in that includes:
one end of the first connecting head is used for being connected with a movable clamp of the tensile testing machine;
the contact is fixedly connected with the other end of the first connecting head;
one end of the second connector is used for being connected with a fixing clamp of the tensile testing machine;
the contact finger seat is fixedly connected with the other end of the second connector, and is provided with an installation structure for installing a contact finger to be tested;
the first connecting head is used for moving along with a movable clamp of the tensile testing machine so as to drive the contact to move up and down and complete opening and closing actions with the contact finger for a certain number of times.
2. The tool for detecting the clasping force of the contact finger and the coating quality as claimed in claim 1, further comprising a transition piece connected between the contact finger seat and the second connector, wherein the transition piece comprises a first connecting piece, the first connecting piece comprises a rod part and a head part, the rod part is fixedly connected with the contact finger seat, and the head part is matched with the second connector in a manner of being capable of moving relatively in the transverse direction, so that the contact finger seat can move transversely relative to the second connector.
3. The tool for detecting the clasping force of the contact fingers and the quality of the coating as claimed in claim 2, wherein the first connecting piece is a first connecting bolt, and the rod part of the first connecting bolt is detachably and fixedly connected with the contact finger seat.
4. The tool for detecting the clasping force of the contact finger and the quality of the coating as claimed in claim 3, wherein the transition piece further comprises a first connecting block and a second connecting block detachably fixed together through a fastener, the first connecting block is provided with a first stepped hole, the first stepped hole comprises a first large-diameter hole arranged towards the second connecting block and a first small-diameter hole connected with the first large-diameter hole, the first small-diameter hole is used for the rod part of the first connecting bolt to penetrate through, the first large-diameter hole is used for the head part of the first connecting bolt to sink into, a first gap is formed between the first stepped hole and the first connecting bolt, and the first gap forms a transverse movable gap between the first connecting bolt and the first connecting block.
5. The tool for detecting the clasping force of the contact finger and the quality of the coating according to claim 4, wherein a second stepped hole is formed in the second connecting block, the second stepped hole comprises a second large-diameter hole and a second small-diameter hole, the second large-diameter hole is formed towards the first connecting block, the second small-diameter hole is connected with the second large-diameter hole, the second connecting bolt penetrates through the second small-diameter hole, the head of the second connecting bolt sinks into the second large-diameter hole, and the rod of the second connecting bolt is detachably and fixedly connected with the second connector.
6. The tool for detecting the holding force of the contact finger and the quality of the coating according to claim 5, wherein the sum of the hole depths of the first large-diameter hole and the second large-diameter hole is larger than the sum of the thicknesses of the heads of the first connecting bolt and the second connecting bolt.
7. The tool for detecting the clasping force of the contact fingers and the quality of the coating as claimed in claim 5 or 6, wherein a second gap is formed between the second stepped hole and the second connecting bolt, and the second gap forms a transverse movable gap between the second connecting bolt and the second connecting block.
8. The tool for detecting the clasping force of the contact fingers and the quality of the coating is characterized in that a first pin hole is formed in a first connecting head, and the first connecting head is connected with a movable clamp of a tensile testing machine through a first pin shaft.
9. The tool for detecting the clasping force of the contact fingers and the quality of the coating is as claimed in any one of claims 1 to 6, wherein a second pin hole is formed in the second connector, and the second connector is used for being connected with a fixing clamp of a tensile testing machine through a second pin shaft.
10. The method for detecting the holding force of the contact finger and the quality of the coating is characterized by comprising the following steps of:
firstly, mounting a contact finger to be tested on a contact finger seat;
secondly, connecting the contact finger seat to a fixed clamp of the tensile testing machine, and installing a contact on a movable clamp of the tensile testing machine;
and thirdly, controlling a tensile testing machine to enable the movable clamp to drive the contact to move up and down to complete opening and closing actions with the contact finger for a certain number of times, obtaining the holding force of the contact finger through a tensile value recorded by the tensile testing machine, and judging the quality of the coating by observing the coating on the contact finger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010789980.3A CN114062251B (en) | 2020-08-07 | 2020-08-07 | Tool and method for detecting cohesive force of contact finger and quality of coating |
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| CN202010789980.3A CN114062251B (en) | 2020-08-07 | 2020-08-07 | Tool and method for detecting cohesive force of contact finger and quality of coating |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160024618A (en) * | 2014-08-26 | 2016-03-07 | 현대자동차주식회사 | Jig for testing axial force of bolt |
| CN205280475U (en) * | 2015-11-19 | 2016-06-01 | 河北华北柴油机有限责任公司 | Bolt tensile test fixes frock |
| CN106153453A (en) * | 2016-08-30 | 2016-11-23 | 贵州新安航空机械有限责任公司 | A kind of Simple pull test fixture |
| CN206095489U (en) * | 2016-10-08 | 2017-04-12 | 国网新疆电力公司电力科学研究院 | A dynamometry contact for measuring twin columns level opens and shuts isolator and touches finger clamp force |
| CN106568592A (en) * | 2016-11-17 | 2017-04-19 | 河南平芝高压开关有限公司 | Contact assembly tensile test tool and rod end joint thereof |
| CN107462462A (en) * | 2017-06-22 | 2017-12-12 | 中国船舶重工集团公司第七二五研究所 | A kind of fixture of ultrashort bolt wedge load test and the method tested with it |
| CN109506825A (en) * | 2018-11-30 | 2019-03-22 | 河南航天精工制造有限公司 | A kind of Closely locking nut performance detection tooling and detection method |
| JP2020094867A (en) * | 2018-12-11 | 2020-06-18 | 株式会社島津製作所 | Material tester |
-
2020
- 2020-08-07 CN CN202010789980.3A patent/CN114062251B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160024618A (en) * | 2014-08-26 | 2016-03-07 | 현대자동차주식회사 | Jig for testing axial force of bolt |
| CN205280475U (en) * | 2015-11-19 | 2016-06-01 | 河北华北柴油机有限责任公司 | Bolt tensile test fixes frock |
| CN106153453A (en) * | 2016-08-30 | 2016-11-23 | 贵州新安航空机械有限责任公司 | A kind of Simple pull test fixture |
| CN206095489U (en) * | 2016-10-08 | 2017-04-12 | 国网新疆电力公司电力科学研究院 | A dynamometry contact for measuring twin columns level opens and shuts isolator and touches finger clamp force |
| CN106568592A (en) * | 2016-11-17 | 2017-04-19 | 河南平芝高压开关有限公司 | Contact assembly tensile test tool and rod end joint thereof |
| CN107462462A (en) * | 2017-06-22 | 2017-12-12 | 中国船舶重工集团公司第七二五研究所 | A kind of fixture of ultrashort bolt wedge load test and the method tested with it |
| CN109506825A (en) * | 2018-11-30 | 2019-03-22 | 河南航天精工制造有限公司 | A kind of Closely locking nut performance detection tooling and detection method |
| JP2020094867A (en) * | 2018-12-11 | 2020-06-18 | 株式会社島津製作所 | Material tester |
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| CN114062251B (en) | 2023-12-15 |
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