CN114062251B - Tool and method for detecting cohesive force of contact finger and quality of coating - Google Patents
Tool and method for detecting cohesive force of contact finger and quality of coating Download PDFInfo
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- CN114062251B CN114062251B CN202010789980.3A CN202010789980A CN114062251B CN 114062251 B CN114062251 B CN 114062251B CN 202010789980 A CN202010789980 A CN 202010789980A CN 114062251 B CN114062251 B CN 114062251B
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- 239000011248 coating agent Substances 0.000 title claims abstract description 30
- 238000000576 coating method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009864 tensile test Methods 0.000 claims abstract description 40
- 238000007747 plating Methods 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 14
- 238000005253 cladding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 20
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation 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
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
-
- 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
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a tool and a method for detecting the enclasping force of contact fingers and the quality of a coating, wherein the tool for detecting comprises the following steps: 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 connector; one end of the second connector is used for being connected with a fixed 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 a mounting structure for mounting a contact finger to be tested; the first connector 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 fingers for a certain number of times. The invention measures the enclasping force of the contact finger under the dynamic working condition, more accords with the real working condition of the contact finger, and realizes accurate and convenient measurement of the enclasping force. Meanwhile, after the test is finished, the quality of the plating layer can be intuitively judged by observing the plating layer 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 contact finger detection for high-voltage switches, in particular to a tool and a detection method for contact finger holding force and coating quality detection.
Background
The contact finger is a core component for a high-voltage switch such as GIS/HGIS, and the surface of the component is generally plated with silver to improve conductivity so as to reduce contact resistance. The quality of the silver plating adhesion force of the contact finger is usually detected by a knife method and a thermal shock test method, wherein the knife method needs to avoid working parts such as a conductive surface, a contact surface and the like when the adhesion force of the plating layer is measured so as not to accidentally damage the working surface, but the knife method still needs to scrape the plating layer, and the method belongs to destructive detection. The thermal shock test is to heat the contact finger first and then cool the contact finger, and the thermal shock test is also a destructive test, and the part can not be used any more after the thermal shock test is completed. In addition, the two methods for detecting the silver plating adhesive force are both static measurement methods, and the contact finger is in sliding friction contact with the contact during actual working, and belongs to dynamic matching, so that the traditional detection method cannot fully reflect the dynamic performance of the contact finger during working, and has limitations.
In addition, in the prior art, when the tightness degree of the contact finger and the contact is detected, the contact can be judged only by the difficulty degree of contact insertion during assembly, the detection result is completely held 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 enclasping force of the contact finger and the coating quality, which can accurately and conveniently detect the enclasping force of the contact finger and the coating quality under the dynamic working condition; the invention also aims to provide a method for accurately and conveniently detecting the enclasping force of the contact finger and the coating quality under the dynamic working condition.
In order to achieve the above purpose, the tool for detecting the enclasping force of the contact finger and the quality of the coating adopts the following technical scheme:
contact indicates frock for holding power and cladding material quality detection, include:
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 connector;
one end of the second connector is used for being connected with a fixed 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 a mounting structure for mounting a contact finger to be tested;
the first connector 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 fingers for a certain number of times.
The beneficial effects of the technical scheme are that: the first connector can be connected the contact on the movable fixture of tensile testing machine, and the second connector can be with the touch finger seat that is used for installing the touch finger that awaits measuring on the fixed fixture of tensile testing machine to the first connector is used for moving along with the movable fixture of tensile testing machine, and the first connector just can drive the contact and reciprocate like this, accomplishes the action of opening and shutting with touch finger a certain number of times. Because the first connector and the second connector are connected to the tensile testing machine for use, the cohesion force of the contact finger can be obtained through the tensile force value recorded by the tensile testing machine, and the cohesion force of the contact finger under the dynamic working condition is measured, so that the real working condition of the contact finger is more met, and the accurate and convenient measurement of the cohesion force is realized. Meanwhile, after the test is finished, the quality of the plating layer can be intuitively judged by observing the plating layer 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, in order to facilitate connection between the second connector and the contact finger seat, simultaneously, the contact finger seat can be conveniently adjusted to a transverse position in a self-adaptive manner when not centering with the contact, the phenomenon of holding down force, twisting and the like is avoided to be generated, the test result is influenced, the tool for detecting the holding force of the contact finger and the coating quality further comprises a transition connecting piece connected between the contact finger seat and the second connector, the transition connecting piece comprises a first connecting piece, the first connecting piece is provided with a rod part and a head part, the rod part is fixedly connected with the contact finger seat, and the head part and the second connector are matched in a transversely relatively movable manner, so that the contact finger seat can transversely move relative to the second connector.
Further, 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 portion of the first connecting bolt is detachably and fixedly connected with the contact finger seat.
Further, in order to conveniently realize the lateral shifting of touch finger seat, the convenient assembly and connection, the transition connecting piece still includes first connecting block and the second connecting block that is in the same place through the fastener is removable to be fixed, be provided with first shoulder hole on the first connecting block, first shoulder hole is including the first big footpath hole that sets up towards the second connecting block and the first path hole that links to each other with first big footpath hole, the pole portion of first path Kong Gongdi connecting bolt passes, the head of first big footpath Kong Gongdi connecting bolt is sunk, first clearance has between first shoulder hole and the first connecting bolt, first clearance constitutes the horizontal clearance between first connecting bolt and the first connecting block.
Further, for the fixed connection between convenient transitional coupling spare and the second connector, be provided with the second ladder hole on the second connecting block, the second ladder hole is including the big footpath hole of second that sets up towards first connecting block and the little footpath hole of second that links to each other with the big footpath hole of second, and transitional coupling spare still includes second connecting bolt, and the shank portion of two connecting bolts of second footpath Kong Gongdi passes, and the head of two connecting bolts of second big footpath Kong Gongdi is sunk, and the shank portion of second connecting bolt is removable fixed connection with the second connector.
Further, for convenience of processing and assembly, 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 head thicknesses of the first connecting bolt and the second connecting bolt.
Further, for ease of assembly and flexible control of lateral movement of the transition piece, a second gap is provided between the second stepped bore and the second connecting bolt, the second gap constituting a lateral movement gap between the second connecting bolt and the second connecting block.
Further, for convenient connection, a first pin hole is formed in the first connector, and the first connector is used for being connected with a movable clamp of the tensile testing machine through a first pin shaft.
Further, in order to facilitate connection, a second pin hole is formed in the second connector, and the second connector is used for being connected with a fixing clamp of the tensile testing machine through a second pin shaft.
In order to achieve the above purpose, the method for detecting the holding force of the contact finger and the quality of the coating adopts the following technical scheme:
the method for detecting the cohesion of the contact finger and the quality of the coating comprises the following steps:
firstly, installing a contact finger to be tested on a contact finger seat;
secondly, connecting the contact finger seat on a fixed clamp of the tensile testing machine, and installing a contact on a movable clamp of the tensile testing machine;
and thirdly, controlling the tension testing machine to enable the movable clamp to drive the contact to move up and down, completing opening and closing actions with the contact fingers for a certain number of times, obtaining the holding force of the contact fingers through the tension value recorded by the tension testing machine, and judging the quality of the coating through observing the coating on the contact fingers.
The beneficial effects of the technical scheme are that: the contact finger seat is connected to the fixed clamp of the tensile testing machine, the contact is connected to the movable clamp of the tensile testing machine, so that the contact can move up and down along with the movable clamp to finish the opening and closing actions of the contact finger for a certain number of times. Meanwhile, after the test is finished, the quality of the plating layer can be intuitively judged by observing the plating layer 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 the state of use of the tool for detecting the enclasping force of the contact fingers and the quality of the plating layer (a tensile testing machine is not shown);
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 connection block of FIG. 1;
FIG. 6 is a top view of the second connection block of FIG. 1;
fig. 7 is a front view of the second connector of fig. 1;
fig. 8 is a left side view of the second connector of fig. 1.
In the figure: 100-contacts; 101-a first threaded hole; 200-touch fingers; 300-finger holders; 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 connection block; 41-second stepped bore; 42-perforating the bolt; 5-fixing bolts; 6-a nut; 7-a second connecting bolt; 8-a second connector; 81-a second threaded hole; 82-second pin holes.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the 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 invention, as 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 made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
An embodiment of a tool for detecting a finger holding force and plating quality in the present invention is shown in fig. 1, and includes a first connector 1, a contact 100, a finger holder 300, a second connector 8, and a transition connector.
The first connector 1 in this embodiment is located above the second connector 8, and the upper end of the first connector 1 is used for being connected with a movable fixture (not shown in the figure) of a tensile testing machine, and the lower end is fixedly connected with the contact 100. Specifically, as shown in fig. 2 and 3, the upper portion of the first connector 1 is provided with a first pin hole 11, the lower portion is provided with a first thread section 12, and the upper end of the first connector 1 is connected with a movable clamp of the 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 connector 1 and the contact 100 are detachably and fixedly connected by means of a first threaded section 12 and the first threaded hole 101.
The contact finger holder 300 is cylindrical, and the contact finger 200 to be measured is mounted on the inner hole wall of the contact finger holder 300, so that the inner hole wall of the contact finger holder 300 forms a mounting structure for mounting the contact finger 200 to be measured.
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 part of the second connector 8 is provided with a second pin hole 82, the upper part 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.
The transition connecting piece is connected between touch finger seat 300 and second connector 8, and the transition connecting piece includes first connecting block 3, second connecting block 4, first connecting piece and second connecting bolt 7, and first connecting piece is specifically first connecting bolt 2. The first connecting block 3 and the second connecting block 4 are identical in structure and are symmetrically arranged up and down, the second connecting block 4 is taken as an example, and as shown in fig. 5 and 6, a second stepped hole 41 is formed in the center of the second connecting block 4, 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 rod part of the second small-diameter Kong Gongdi two connecting bolts 7 penetrates through the rod part of the second large-diameter Kong Gongdi two connecting bolts 7, and when the assembly is carried out, the rod part of the second connecting bolts 7 penetrates through the second stepped hole 41 to be in threaded connection with the second threaded holes 81 on the second connecting head 8.
The first connecting block 3 and the second connecting block 4 are detachably fixed through a fastener, the fastener in the embodiment comprises a fixing bolt 5 and a nut 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, a first stepped hole is formed in the first connecting block 3, the first stepped hole includes a first large-diameter hole formed toward the second connecting block 4 and a first small-diameter hole connected with the first large-diameter hole, a rod portion of the first small-diameter Kong Gongdi connecting bolt 2 penetrates through the first large-diameter Kong Gongdi connecting bolt 2, and when the first large-diameter Kong Gongdi connecting bolt is assembled, the rod portion of the first connecting bolt 2 penetrates through the first stepped hole and is detachably and fixedly connected with the contact finger base 300.
In this embodiment, a first gap is formed between the first stepped hole and the first connecting bolt 2, including a gap between the head 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 part 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 comprises 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. Moreover, the first stepped hole is matched with the first connecting bolt 2, and the second stepped hole is matched with the second connecting bolt 7, so that the head of the bolt is conveniently sunk, and transverse movable gaps are reserved between the first connecting bolt 2 and the first connecting block 3 and between the second connecting bolt 7 and the second connecting block 4.
When in use, the first connector 1 is used for moving up and down along with the movable clamp of the tensile testing machine, thereby driving the contact 100 to move up and down and completing the opening and closing actions with the contact finger 200 for a certain number of times. Because of the above-mentioned transverse clearance, if the contact finger holder 300 is not aligned with the contact 100, the contact finger holder 300 can move transversely relative to the second connector 8, and the transverse position of the contact finger holder is adjusted adaptively, so as to avoid the influence of the phenomena of holding down force, twisting, etc. on the test result. Because the first connector 1 and the second connector 8 are connected to the tensile testing machine for use, the holding force of the contact finger 200 can be obtained through the tensile force 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, the sliding friction force and the holding force are in a certain proportion), the measured holding force of the contact finger 200 under the dynamic working condition is more in line with the actual working condition of the contact finger, and the accurate and convenient measurement of the holding force is realized. Meanwhile, after the test is finished, the quality of the plating layer can be intuitively judged by observing the plating layer 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 arranged between the first stepped hole and the first connecting bolt 2, a second gap is arranged between the second stepped hole and the second connecting bolt 7, and the two gaps can both influence the transverse activity of the finger-contacting seat 300, so that the two gaps can be flexibly controlled and applied in practical application, and the convenient measurement of the finger-contacting holding force is realized.
In addition, 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 2 and the second connecting bolt 7, so that the processing and the assembly are convenient, on the one hand, and on the other hand, referring to 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 propped together, when the contact 100 is inserted into the contact finger 200, the heads of the two bolts are propped and stressed, 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 heads of the second connecting bolt 7 are in stop fit with the second connecting block 4, so that before the contact 100 and the contact finger 200 are separated, the first connecting block 3 and the second connecting block 4 can have a certain displacement, and the contact 100 can be known to be separated from the contact finger 200 in advance by observing the displacement phenomenon, so that the tensile testing machine is convenient to control.
An embodiment of a method for detecting the holding force of a contact finger and the quality of a coating in the invention is shown in combination with fig. 1, and comprises the following steps:
in the first step, the finger 200 to be tested is mounted on the finger rest 300.
In the second step, the finger rest 300 is connected to a fixed jig of the tensile tester, and the contact 100 is mounted on a movable jig of the tensile tester. Specifically, the contact 100 in this embodiment is mounted on the first connector 1, and the first connector 1 is connected to the movable fixture of the tensile testing machine through the first pin. In addition, the contact finger seat 300 is connected with the second connector 8 through a transition connection piece, the second connector 8 is connected with a fixing clamp of the tensile testing machine through a second pin shaft, and the structure of the transition connection piece is not repeated herein, with reference to the embodiment of the tool for detecting the holding force of the contact finger and the quality of the coating.
And thirdly, controlling the tension tester 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 tension value recorded by the tension tester, and judging the quality of the coating through observing the coating on the contact finger 200.
Because the tension tester is used for testing, the holding force of the contact finger can be obtained through the tension value recorded by the tension tester (when the contact finger is pulled at a constant speed, the tension is equal to the sliding friction force, the sliding friction force and the holding force are in a certain proportion), the holding force of the contact finger under the dynamic working condition is measured, the actual working condition of the contact finger is more met, and the accurate and convenient measurement of the holding force is realized. Meanwhile, after the test is finished, the quality of the plating layer can be intuitively judged by observing the plating layer 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 finger holding force and plating quality detection method, pin holes may be machined in the contact, allowing the contact to be directly connected to a movable clamp of the tensile testing machine through a pin.
In other embodiments of the method for detecting the holding force of the contact finger and the quality of the coating, the transitional connecting piece can be omitted, and the pin hole is processed on the contact finger seat, so that the contact finger seat is directly connected to the fixed clamp of the tensile testing machine through the pin shaft.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the plating layer, for the contact finger to be mounted on the outer wall surface, the mounting structure on the contact finger seat is the outer wall surface of the contact finger seat, and at this time, the contact is provided with an insertion hole.
In other embodiments of the tool for detecting the enclasping force of the contact fingers and the quality of the coating, for the tensile testing machine with the fixed clamp and the movable clamp at the lower part, the first connector is positioned below the second connector.
In other embodiments of the tool for detecting the enclasping force of the contact finger and the quality of the coating, the movable clamp of the tensile testing machine which is not in pin connection, for example, the movable clamp fixed by the enclasping clamp, and the clamping part is only required to be arranged on the first connecting head.
In other embodiments of the tool for detecting the enclasping force of the contact finger and the quality of the plating layer, the fixing clamp of the tensile testing machine which is not pin-connected, for example, the fixing clamp fixed by the enclasping clamp, and the clamping part may be provided on the second connector.
In other embodiments of the tool for detecting the enclasping force of the contact finger and the quality of the plating layer, a transverse movable gap can be avoided between the second stepped hole and the second connecting bolt, and the second stepped hole only penetrates through the second connecting bolt.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the plating layer, 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 enclasping force of the contact finger and the quality of the plating layer, the second connecting block is not provided with a second step hole, and a stud can be welded or integrally processed on the second connecting block, so that the stud is directly connected with the second connector.
In other embodiments of the tool for detecting the enclasping force of the contact fingers and the quality of the coating, the transitional connecting piece does not comprise a first connecting block and a second connecting block, at the moment, the transitional connecting piece is only formed by a 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, at the moment, a T-shaped groove is processed on the second connecting head, the head part of the T-shaped bolt is limited in the T-shaped groove, the connection with the second connecting head is realized, and the contact finger seat can move transversely relative to the second connecting head through a transverse fit gap between the T-shaped groove and the T-shaped bolt.
In other embodiments of the tool for detecting the enclasping force of the contact fingers and the quality of the coating, 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 at the moment, meanwhile, a T-shaped groove is required to be processed on the second connecting head, the head part of the first connecting piece is limited in the T-shaped groove, connection with the second connecting head is realized, and the contact finger seat can move transversely relative to the second connecting head through a transverse fit clearance between the T-shaped groove and the head part.
In other embodiments of the tool for detecting the enclasping force of the contact finger and the quality of the coating, the tool for detecting the enclasping force of the contact finger and the quality of the coating does not include a transitional connecting piece, and at this time, the contact finger seat is directly 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 connected with the second connector through threads, or the contact finger seat and the second connector can also be directly welded and fixed.
In other embodiments of the tool for detecting the holding force of the contact finger and the quality of the plating layer, the first connector and the contact can be directly welded and fixed.
Claims (7)
1. Contact finger cohesion and cladding material quality detect and use frock, 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 connector;
one end of the second connector is used for being connected with a fixed 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 a mounting structure for mounting a contact finger to be tested;
the first connector 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 finish opening and closing actions with the contact fingers for a certain number of times;
the tool for detecting the enclasping force of the contact finger and the quality of the coating also comprises a transition connecting piece connected between the contact finger seat and the second connector, wherein the transition connecting piece comprises a first connecting piece, the first connecting piece is provided with 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 transversely relatively moving so that the contact finger seat can transversely move relative to the second connector, 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;
the transition connecting piece is further provided with a first stepped hole including a first big diameter hole arranged towards the second connecting block and a first small diameter hole connected with the first big diameter hole, the rod part of the first small diameter Kong Gongdi connecting bolt penetrates through the head part of the first big diameter Kong Gongdi connecting bolt, a first gap is reserved 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.
2. The tool for detecting the enclasping force of the contact finger and the quality of a coating according to claim 1, wherein a second stepped hole is formed in the second connecting block, the second stepped hole comprises a second large-diameter hole formed towards the first connecting block and a second small-diameter hole connected with the second large-diameter hole, the transitional connecting piece further comprises a second connecting bolt, the rod part of the second small-diameter Kong Gongdi connecting bolt penetrates through, the head part of the second large-diameter Kong Gongdi connecting bolt is sunk, and the rod part of the second connecting bolt is detachably and fixedly connected with the second connector.
3. The tool for detecting the holding force of the contact finger and the quality of the plating layer according to claim 2, 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.
4. The tool for detecting the holding force of the contact finger and the quality of the plating layer according to claim 2 or 3, wherein a second gap is formed between the second stepped hole and the second connecting bolt, and the second gap forms a lateral movable gap between the second connecting bolt and the second connecting block.
5. The tool for detecting the enclasping force of the contact finger and the quality of the plating layer according to any one of claims 1 to 3, wherein a first pin hole is arranged on a first connecting head, and the first connecting head is used for being connected with a movable clamp of a tensile testing machine through a first pin shaft.
6. The tool for detecting the enclasping force of the contact finger and the quality of the plating layer according to any one of claims 1 to 3, wherein a second pin hole is arranged on the second connector, and the second connector is connected with a fixing clamp of the tensile testing machine through a second pin shaft.
7. The method for detecting the cohesion of the contact finger and the quality of the coating is characterized by adopting the tool for detecting the cohesion of the contact finger and the quality of the coating according to any one of claims 1 to 6, and comprising the following steps:
firstly, installing a contact finger to be tested on a contact finger seat;
secondly, connecting the contact finger seat on a fixed clamp of the tensile testing machine, and installing a contact on a movable clamp of the tensile testing machine;
and thirdly, controlling the tension testing machine to enable the movable clamp to drive the contact to move up and down, completing opening and closing actions with the contact fingers for a certain number of times, obtaining the holding force of the contact fingers through the tension value recorded by the tension testing machine, and judging the quality of the coating through observing the coating on the contact fingers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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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| CN114062251A CN114062251A (en) | 2022-02-18 |
| CN114062251B true CN114062251B (en) | 2023-12-15 |
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| CN114062251A (en) | 2022-02-18 |
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