CN110044684B - Lead firmness test method - Google Patents
Lead firmness test method Download PDFInfo
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- CN110044684B CN110044684B CN201910354616.1A CN201910354616A CN110044684B CN 110044684 B CN110044684 B CN 110044684B CN 201910354616 A CN201910354616 A CN 201910354616A CN 110044684 B CN110044684 B CN 110044684B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention is suitable for the technical field of electronic component detection, and provides a lead firmness testing method, which comprises a supporting assembly, a rotary fastening seat, at least one group of sliding fastening clamp assemblies, an indicating disc and a lead fastening assembly, wherein the supporting assembly is fixed on the rotating fastening seat; the rotary fastening seat is arranged on the supporting assembly and comprises a rotating portion, a force application portion and a clamping installation portion, the rotating portion, the force application portion and the clamping installation portion are connected with the supporting assembly in a rotating mode, the clamping installation portion and the force application portion are connected with the rotating portion respectively, and scales are arranged on the indicating disc. The rotary fastening seat is provided with a pointer part, and the pointer part and the indicating disc are matched to display the bending angle of the lead wire during the test. According to the lead firmness testing method provided by the invention, the lead bending test can be completed at an accurate angle by arranging the rotary fastening seat rotationally connected with the supporting component, the lead fastening component arranged on the supporting component, and the pointer part and the indicating disc for displaying the bending angle of the lead during the test, and the lead fatigue test and the lead tension test can be respectively completed by means of weights.
Description
Technical Field
The invention belongs to the technical field of electronic component detection, and particularly relates to a lead firmness testing method.
Background
The lead firmness test comprises a lead bending test, a lead fatigue test, a lead tension test, a lead torsion test and the like, wherein the test amount of the lead bending test, the lead fatigue test and the lead tension test accounts for more than 99% of the test amount of all the lead firmness tests. Therefore, the method for testing the firmness of the lead can solve most of test problems after solving the problems of the three subdivision tests.
The wire bend test is used to determine the integrity of the wire seal and wire coating. The currently most commonly used national military standard and method is GJB 548B-2005 microelectronic device test method and procedure method 2004.3-lead wire firmness chapter 6: test condition B1 (bending stress). The method is established by referring to the American military Standard MIL-STD-883E Standard for microcircuit Test methods (Test method standard) method 2004.5-lead wire firmness Test condition B1-bending stress. The method is suitable for bending tests of flexible and semi-flexible leads, double-row packaging and pin grid array packaging leads and rigid leads. In the bending test procedures of different lead types, different bending angles are specified, and the force application magnitude is not required.
The lead fatigue test is used for the condition of applying bending stress for multiple times, and is mainly used for measuring the metal fatigue resistance of the lead when the lead is bent for multiple times. The currently most commonly used national military standard and methodology is GJB 548B-2005 microelectronic device test method and procedure method 2004.3-lead ruggedness Chapter 7 test Condition B2 (lead fatigue). The method is established by referring to the American military standard MIL-STD-883E microcircuit Test method Standard (Test method standard) method 2004.5-lead wire firmness Test condition B2-lead wire fatigue Test. The fatigue tests of different types of leads use different bending angles and different force application sizes, and the fatigue test parameters are different in different standards. The lead fatigue test procedures were repeated 3 times for the lead bending tests in the same standard.
The lead tension test is to check the resistance of the device to linear tension, and the welding and sealing. The currently most commonly used national military standard and methodology is GJB 548B-2005 microelectronic device test methods and procedures method 2004.3-lead wire securement chapter 5: test condition a (tensile force). The method is established by referring to the American military Standard MIL-STD-883E Standard for microcircuit Test methods (Test method standards of microcircuits) method 2004.5-lead wire firmness Test condition B1-bending stress. The tensile test procedure was as follows: the test lead is held for a predetermined time while applying a predetermined force to the test lead in a direction parallel to the axial direction of the lead or the lead end without an impact.
At present, no lead firmness test method capable of performing lead bending test and lead fatigue test on the accurate angle of a component and simultaneously performing lead tension test exists in the market.
Disclosure of Invention
The invention aims to provide a method for testing the firmness of a lead, and aims to realize that a lead bending test and a lead fatigue test can be completed at an accurate angle by using one method for testing the firmness of the lead, and a lead tension test can be completed at the same time.
In order to achieve the purpose, the invention adopts the technical scheme that: a lead integrity test method comprising:
a support assembly;
the rotary fastening seat is arranged on the supporting assembly and used for providing bending force for the lead, the rotary fastening seat comprises a rotating part, a force application part and a clamping installation part which are rotatably connected with the supporting assembly, and the clamping installation part and the force application part are respectively connected with the rotating part;
the sliding fastening clamp assembly is arranged on the clamping installation part and used for fixing components;
the indicating disc is fixedly arranged on the supporting component and provided with scales; and
the lead fastening assembly is arranged on the supporting assembly, is positioned on one side of the rotary fastening seat and is used for fixing a lead of a component;
the rotary fastening seat is provided with a pointer part, and the pointer part and the indicating disc are matched to display the bending angle of the lead wire during the test.
Further, the supporting assembly comprises a bottom plate, a rotating seat arranged on the bottom plate and a slide rail seat connected with the bottom plate, the slide rail seat is provided with a slide rail part, and the lead wire fastening assembly is installed on the slide rail part.
Furthermore, the rotating part is a rotating shaft, a rotating hole connected with the rotating shaft in a rotating mode is formed in the rotating seat, and a braking jackscrew used for braking the rotating shaft is arranged on the rotating seat.
Furthermore, the indicating disc is sleeved on the periphery of the rotating shaft and connected with the rotating seat.
Further, application of force portion with the clamping installation department is located respectively the both ends of pivot, the pivot with clamping installation department swing joint, pointer portion sets up on the clamping installation department.
Further, the clamping installation department is frame construction, slip fastening clamp subassembly is including setting up fixed fastening head and slip fastening head on the frame construction, thereby slip fastening head can for fixed fastening head with frame construction slip with fixed fastening head cooperation presss from both sides tight fixed components and parts.
Furthermore, the sliding fastening head is provided with a screw rod rotatably connected with the sliding fastening head, the screw rod is in threaded connection with the clamping installation part, and the sliding fastening head is realized by means of the screw rod relative to the fixed fastening head and the sliding of the clamping installation part.
Furthermore, the matching surface of the sliding fastening head and the fixed fastening head is a plane or a concave arc surface.
Further, the lead fastening assembly comprises an X-axis slider capable of moving in an X-axis direction relative to the slide rail portion, a Y-axis slider capable of moving in a Y-axis direction relative to the X-axis slider, and a Z-axis slider capable of moving in a Z-axis direction relative to the Y-axis slider, the Z-axis slider is provided with a lead clamping groove for clamping a lead, the X-axis slider is fixed relative to the slide rail portion through a first jackscrew, the Y-axis slider is fixed relative to the X-axis slider through a second jackscrew, and the Z-axis slider is fixed relative to the Y-axis slider through a third jackscrew.
Further, the clamping installation part is of a frame structure, the sliding fastening clamp component comprises a fixed fastening head and a sliding fastening head which are arranged on the frame structure, the sliding fastening head can slide relative to the fixed fastening head and the frame structure so as to be matched with the fixed fastening head to clamp a fixed component, and the lead tightening assembly includes an X-axis slider movable in an X-axis direction with respect to the rail portion, a Y-axis slider movable in a Y-axis direction with respect to the X-axis slider, and a Z-axis slider movable in a Z-axis direction with respect to the Y-axis slider, the Z-axis sliding block is provided with a lead clamping groove for clamping a lead, the X-axis sliding block is fixed relative to the sliding rail part through a first jackscrew, the Y-axis sliding block is fixed relative to the X-axis sliding block through a second jackscrew, and the Z-axis sliding block is fixed relative to the Y-axis sliding block through a third jackscrew.
According to the lead firmness testing method provided by the invention, the lead bending test can be completed at an accurate angle by arranging the rotary fastening seat rotationally connected with the supporting component, the lead fastening component arranged on the supporting component, and the pointer part and the indicating disc for displaying the bending angle of the lead during the test, and the lead fatigue test and the lead tension test can be respectively completed by means of weights.
Drawings
FIG. 1 is a schematic diagram of a method for testing the integrity of a lead according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a lead wire firmness testing method provided by an embodiment of the present invention applied in a lead wire fatigue test and a lead wire tension test;
FIG. 3 is a schematic diagram of a method for testing the wire integrity in a wire bending test according to an embodiment of the present invention;
FIG. 4 is a schematic view of the slide rail mount and lead fastener assembly of FIG. 1;
FIG. 5 is a schematic view of the rotary fastening base of FIG. 1;
FIG. 6 is a schematic view of the rotary base, the vertical plate and the bottom plate of FIG. 1;
FIG. 7 is a schematic view of the sliding fastening clip assembly of FIG. 1.
In the figure: 1-a support assembly; 101-a base plate; 102-a rotating seat; 103-a slide rail seat; 104-a vertical plate; 2-rotating the fastening seat; 201-a rotating part; 202-a force application part; 203-clamping mounting part; 2031-pointer section; 3-sliding the fastening clip assembly; 301-fixing the fastening head; 302-sliding fastening head; 3021-screw; 3022-a guide bar; 4-an indicator panel; 5-a lead fastening assembly; 501-X axis slide block; 502-Y axis slide block; 503-Z axis slide; 5031-lead clip groove; 6-weight; 7-components.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 7, an embodiment of the method for testing the wire integrity according to the present invention will now be described. A lead integrity test method comprising: the wire fixing device comprises a supporting component 1, a rotary fastening seat 2, at least one group of sliding fastening clamp components 3, an indicating disc 4 and a wire fastening component 5.
The rotary fastening seat 2 is arranged on the supporting component 1 and used for providing bending force for a lead of the component 7, the rotary fastening seat 2 mainly comprises a rotating portion 201, a force application portion 202 and a clamping installation portion 203, the rotating portion 201, the force application portion 202 and the clamping installation portion 203 are rotatably connected with the supporting component 1, and the clamping installation portion 203 and the force application portion 202 are respectively connected with the rotating portion 201. The force application portion 202 is a structure for facilitating an operator to apply torque to the rotation fastening base 2 by holding or clamping with a machine, and the operator applies torque to the rotation fastening base 2 by holding or clamping with a machine, thereby realizing application of bending force to the lead of the component 7.
The slide clamp assembly 3 has at least one set, is mounted on the mounting portion 203, and is used for fixing a stem or a lead of the component 7.
The indicating dial 4 is fixedly arranged on the supporting component 1, and a circle of scales are arranged on the indicating dial 4 and can indicate the rotating angle of the rotating fastening seat 2.
And the lead fastening assembly 5 is arranged on the support assembly 1, is positioned on one side of the rotary fastening seat 2 and is used for fixing a lead of the component 7.
The rotating fastening seat 2 is provided with a pointer part 2031, the indicating disc 4 is fixed, and the pointer part 2031 rotates in the scale of the indicating disc 4 along with the rotating fastening seat 2 to display the bending angle of the lead wire during the test.
When the lead wire bending test is performed by using the lead wire firmness test method provided by the embodiment of the invention, the tube seat of the component 7 is fixed by using the sliding fastening clamp assembly 3, the lead wire of the component 7 is fixed by using the lead wire fastening assembly 5, then an operator holds or clamps the force application part 202 by hand to apply torque to the force application part, so that the rotating fastening seat 2 rotates (meanwhile, the actual bending force to the lead wire is applied), when the pointer part 2031 rotates by a preset angle, the bending angle of the lead wire reaches the preset angle of the test, and then the lead wire bending test is completed by referring to the lead wire bending test specification.
When the lead wire fatigue test is carried out by using the lead wire firmness test method provided by the embodiment of the invention, the operation steps are basically consistent with those of the lead wire bending test, the requirements are provided only for the magnitude of force application according to the lead wire fatigue test specification, a machine or a hand can be used for applying constant preset torque to the force application part 202 during the test, meanwhile, the weight 6 is used for clamping the lead wire to realize the accurate force application to the lead wire, and the bending force is still applied to the lead wire by rotating the rotary fastening seat 2.
When the lead wire firmness test method provided by the embodiment of the invention is used for carrying out a lead wire tension test, the tube seat of the component 7 is fixed by the sliding fastening clamp assembly 3, the external weight-regulated weight 6 is clamped on the tested lead wire of the fixed component 7 according to the lead wire tension test specification, and then the lead wire tension test is finished after a certain time (manual timing).
According to the method for testing the lead firmness, the rotary fastening seat rotationally connected with the supporting assembly, the lead fastening assembly arranged on the supporting assembly, the pointer part and the indicating disc for displaying the bending angle of the lead during the test are arranged, so that the lead bending test can be completed at an accurate angle, and the lead fatigue test and the lead tension test can be completed respectively by means of weights.
Referring to fig. 1 to 5, as an embodiment of the method for testing the lead firmness, a lead fastening assembly 5 is located at the lower side of a rotary fastening base 2.
Referring to fig. 1 to 4 and fig. 6, as an embodiment of the method for testing the lead firmness, the supporting assembly 1 includes a base plate 101, a rotating base 102 disposed on the base plate 101, and a slide rail base 103 connected to the base plate 101, wherein the slide rail base 103 is provided with a slide rail portion, and the lead fastening assembly 5 is mounted on the slide rail portion. The rotary fastening base 2 is rotatably connected with the support assembly 1 through the rotating part 201 and the rotating base 102.
Referring to fig. 1 to 3, 5 and 6, as an embodiment of the method for testing the lead firmness according to the present invention, the rotating portion 201 is a rotating shaft, the rotating base 102 is provided with a rotating hole rotatably connected to the rotating shaft, the rotating shaft rotates in the rotating hole, and the rotating base 102 is provided with a braking jackscrew for braking the rotating shaft. In this way, when the brake jackscrew is loosened, the rotary fastening base 2 can be rotated freely relative to the rotary base 102, and after the brake jackscrew is screwed, the rotary fastening base 2 can be stopped to a horizontal position, so that the rotary fastening base 2 can be prevented from rotating freely in a non-test state or when the component 7 is installed.
Referring to fig. 1 to fig. 3, as a specific embodiment of the method for testing the lead firmness, the indicator panel 4 is sleeved on the periphery of the rotating portion 201 (rotating shaft) and the indicator panel 4 is connected to the rotating base 102.
Referring to fig. 1 to fig. 3 and fig. 5, as a specific embodiment of the method for testing the lead firmness, the force application portion 202 and the clamp installation portion 203 are respectively located at two ends of the rotation portion 201 (rotation shaft), the rotation portion 201 is movably connected with the clamp installation portion 203, and the rotation portion 201 and the clamp installation portion 203 can be connected by threads, tightening, or the like. The pointer portion 2031 is provided on the clamp mounting portion 203. Thus, when different tests are performed, the position of the clamp mounting part 203 can be changed by detaching the rotating part 201 from the clamp mounting part 203. For example, the clip mounting portion 203 may be provided above the wire clamp assembly 5 in a wire bending test, and the clip mounting portion 203 may be provided on a side away from the wire clamp assembly 5 in a wire fatigue test or a wire tension test to prevent interference of the wire clamp assembly 5.
Referring to fig. 1 to fig. 3 and fig. 6, as an embodiment of the method for testing the lead firmness, the rotating base 102 and the bottom plate 101 are also detachably connected, so as to facilitate the detachment and installation of the rotating fastening base 2 and facilitate the manufacturing.
Referring to fig. 1 to fig. 3 and fig. 4, as an embodiment of the method for testing the lead integrity provided by the present invention, the slide rail seat 103 and the bottom plate 101 are also detachably connected for manufacturing.
Referring to fig. 1 to fig. 3, fig. 4 and fig. 6, as a specific embodiment of the method for testing the lead firmness, the supporting assembly 1 further includes a vertical plate 104, and the vertical plate 104 is disposed on the bottom plate 101. The rotating seat 102 is inserted into the vertical plate 104 and is relatively fixed through threaded connection, and the slide rail seat 103 is also detachably connected with the vertical plate 104 through threaded connection.
Referring to fig. 1 to fig. 3, as a specific embodiment of the method for testing the lead firmness, the indicator panel 4 is fixedly connected to the vertical plate 104.
Referring to fig. 1 to fig. 3, fig. 5 and fig. 7, as an embodiment of the method for testing the lead firmness, the clip mounting portion 203 is a frame structure, and the sliding fastening clip assembly 3 includes a fixed fastening head 301 and a sliding fastening head 302 disposed on the frame structure. The fixed fastening head 301 is stationary with respect to the frame structure, the sliding fastening head 302 is slidable with respect to the fixed fastening head 301 and the frame structure, and the sliding fastening head 302 cooperates with the fixed fastening head 302 to clamp or release the socket or lead of the fixed component 7.
Referring to fig. 1 to 3 and 5, as an embodiment of the method for testing the lead firmness, a force application portion is a disc-shaped structure for being held by hand or by a machine.
Referring to fig. 1 to fig. 3 and fig. 7, as an embodiment of the method for testing the lead firmness, the sliding fastening head 302 is provided with a screw 3021 rotatably connected thereto, the screw is in threaded connection (screw transmission) with the clamping installation portion 203, and the sliding fastening head 302 is slid relative to the fixed fastening head 301 and the clamping installation portion 203 by means of the screw 3021.
Referring to fig. 1 to fig. 3 and fig. 7, as a specific embodiment of the method for testing the lead firmness, the sliding fastening head 302 is provided with a guide rod 3022, the clamping and mounting portion 203 is provided with a guide hole matched with the guide rod in a guiding manner, and the sliding fastening head 302 can translate relative to the fixed fastening head 301 and the clamping and mounting portion 203 through the matching of the guide hole and the guide rod 3022, so as to clamp the fixed component 7.
Referring to fig. 1 to fig. 3 and fig. 7, as an embodiment of the method for testing the lead firmness, mating surfaces of the sliding fastening head 302 and the fixed fastening head 301 are flat surfaces or concave arc surfaces, so as to clamp and fix components 7 of different types (shapes).
Referring to fig. 1 to fig. 3, as a specific embodiment of the method for testing the lead firmness, the method for testing the lead firmness according to the embodiment of the present invention includes three sets of sliding fastening clip assemblies, wherein the mating surfaces of the movable fastening head 302 and the fixed fastening head 301 of the first set of sliding fastening clip assemblies are flat surfaces, the mating surfaces of the movable fastening head 302 and the fixed fastening head 301 of the second set of sliding fastening clip assemblies are concave arc surfaces, and the mating surfaces of the movable fastening head 302 and the fixed fastening head 301 of the third set of sliding fastening clip assemblies are convex flat surfaces.
Referring to fig. 1 to 4, as an embodiment of the method for testing the wire integrity provided by the present invention, the wire fastening assembly 5 includes an X-axis slider 501 capable of moving in the X-axis direction relative to the rail portion, a Y-axis slider 502 capable of moving in the Y-axis direction relative to the X-axis slider 501, and a Z-axis slider 503 capable of moving in the Z-axis direction relative to the Y-axis slider 502, wherein the Z-axis slider 503 is provided with a wire clamping groove 5031 for clamping the wire, and the Z-axis slider 503 has high elasticity, and the wire is tightly connected to the wire clamping groove 5031. Thus, the lead fastener assembly 5 is configured to be adjustable in three dimensions, X, Y and Z, to accommodate the use of different sets (positions) of sliding fastener assemblies 3 and the clamping of leads by different profile components 7.
Further, the X-axis slider 501 is held and fixed to the slide rail portion by a first jack screw, the Y-axis slider 502 is held and fixed to the X-axis slider 501 by a second jack screw, and the Z-axis slider 503 is held and fixed to the Y-axis slider 502 by a third jack screw.
Referring to fig. 1 to 4, as a specific embodiment of the method for testing the lead firmness according to the present invention, the slide rail portions are two slide rails, the X-axis slider 501 is a groove-shaped slider structure disposed outside the two slide rails, the Y-axis slider 502 is a groove-shaped slider structure disposed outside the X-axis slider 501, and the Y-axis slider 502 is provided with a slide hole for the Z-axis slider 503 to slide up and down. The X-axis slider 501 is also provided with a via hole for the Z-axis slider 503 to slide up and down.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The lead firmness testing method is characterized in that based on a lead firmness multifunctional tester, the lead firmness multifunctional tester comprises:
a support assembly; the support assembly comprises a bottom plate, a rotating seat arranged on the bottom plate and a slide rail seat connected with the bottom plate, the slide rail seat is provided with a slide rail part, and the lead fastening assembly is arranged on the slide rail part;
the rotary fastening seat is arranged on the supporting assembly and used for providing bending force for the lead, the rotary fastening seat comprises a rotating part, a force application part and a clamping installation part which are rotatably connected with the supporting assembly, and the clamping installation part and the force application part are respectively connected with the rotating part;
the sliding fastening clamp assembly is arranged on the clamping installation part and used for fixing components;
the indicating disc is fixedly arranged on the supporting component and provided with scales; and
the lead fastening assembly is arranged on the supporting assembly, is positioned on one side of the rotary fastening seat and is used for fixing a lead of a component;
the rotary fastening seat is provided with a pointer part, and the pointer part and the indicating disc are matched to display the bending angle of the lead in the test;
the clamping installation part is of a frame structure, the sliding fastening clamp assembly comprises a fixed fastening head and a sliding fastening head which are arranged on the frame structure, and the sliding fastening head can slide relative to the fixed fastening head and the frame structure so as to be matched with the fixed fastening head to clamp a fixed component;
the lead fastening assembly comprises an X-axis slide block capable of moving in an X axial direction relative to the slide rail part, a Y-axis slide block capable of moving in a Y axial direction relative to the X-axis slide block and a Z-axis slide block capable of moving in a Z axial direction relative to the Y-axis slide block, the Z-axis slide block is provided with a lead clamping groove for clamping a lead, the X-axis slide block is fixed relative to the slide rail part through a first jackscrew, the Y-axis slide block is fixed relative to the X-axis slide block through a second jackscrew, and the Z-axis slide block is fixed relative to the Y-axis slide block through a third jackscrew;
the lead firmness test method comprises the following steps:
a lead bending test, in which a tube seat of the component is fixed by the sliding fastening clamp assembly, a lead of the component is fixed by the lead fastening assembly, an operator holds the force application part by hand or clamps the force application part by a machine to apply torque, so that the rotating fastening seat rotates, and the pointer part rotates to a preset angle;
a lead fatigue test, namely fixing a tube seat of the component by using the sliding fastening clamp assembly and clamping the lead of the component by using a weight according to the lead fatigue test specification; during testing, a machine or a hand is used for applying constant preset torque to the force application part, and meanwhile, weights are used for clamping the lead to realize the force application to the lead so as to enable the rotary fastening seat to rotate;
and a lead tension test, namely fixing a tube seat of the component by using the sliding fastening clamp assembly and clamping the lead of the component by using a weight according to the lead tension test specification to keep a certain time.
2. The method for testing the firmness of the lead wire as claimed in claim 1, wherein the rotating part is a rotating shaft, a rotating hole rotatably connected with the rotating shaft is formed in the rotating seat, and a braking jackscrew for braking the rotating shaft is arranged on the rotating seat.
3. The method for testing the firmness of the lead wire as claimed in claim 2, wherein the indicating disc is sleeved on the periphery of the rotating shaft and connected with the rotating seat.
4. The method for testing the firmness of the lead wire as claimed in claim 2, wherein the force application part and the clamping installation part are respectively positioned at two ends of the rotating shaft, the rotating shaft is movably connected with the clamping installation part, and the pointer part is arranged on the clamping installation part.
5. The method for testing the firmness of the lead according to claim 1, wherein the sliding fastening head is provided with a screw rod which is rotatably connected with the sliding fastening head, the screw rod is in threaded connection with the clamping installation part, and the sliding fastening head slides relative to the fixed fastening head and the clamping installation part by means of the screw rod.
6. The method for testing the soundness of lead according to claim 1, wherein the mating surfaces of the sliding fastening head and the fixed fastening head are flat surfaces or concave arc surfaces.
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| CN201910354616.1A CN110044684B (en) | 2019-04-29 | 2019-04-29 | Lead firmness test method |
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| CN201910354616.1A CN110044684B (en) | 2019-04-29 | 2019-04-29 | Lead firmness test method |
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| CN110044684B true CN110044684B (en) | 2022-04-01 |
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| CN111157357B (en) * | 2019-12-30 | 2022-05-20 | 陕西建工第九建设集团有限公司 | Bending quality inspection device for building material plates |
| CN114894635A (en) * | 2022-04-20 | 2022-08-12 | 滁州市技术监督检测中心 | Sample leading-out end strength testing machine |
| CN115979833A (en) * | 2023-02-15 | 2023-04-18 | 河北北芯半导体科技有限公司 | Device and method for testing lead firmness of component |
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Inventor after: Zhang Kui Inventor after: Zhao Hailong Inventor after: Pei Xuan Inventor after: Xi Shanbin Inventor after: Song Yuxi Inventor after: Wang Yuzheng Inventor before: Zhang Kui Inventor before: Zhao Hailong Inventor before: Pei Xuan Inventor before: Wu Lihui Inventor before: Song Yuxi Inventor before: Wang Yuzheng |