CN110763386A - Connector contact pin ejection force testing tool - Google Patents
Connector contact pin ejection force testing tool Download PDFInfo
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- CN110763386A CN110763386A CN201911218783.XA CN201911218783A CN110763386A CN 110763386 A CN110763386 A CN 110763386A CN 201911218783 A CN201911218783 A CN 201911218783A CN 110763386 A CN110763386 A CN 110763386A
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- rod
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- ejection force
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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
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Abstract
The invention discloses a connector pin ejection force testing tool which comprises a power supply, an indicator, an elastic piece and an adaptive rod, wherein the adaptive rod is a rigid rod and is provided with a first end and a second end, at least the power supply and the indicator form an electric loop with on-off of a switch, the elastic piece acts on the adaptive rod, the first end of the adaptive rod acts on the connector pin, the second end of the adaptive rod triggers the switch of the electric loop to be conducted after overcoming a preset force value applied to the adaptive rod by the elastic piece, and the indicator is conducted and connected to the power supply to send an indicating signal. The device is convenient to carry, use and simple in structure.
Description
Technical Field
The invention relates to the field of detection equipment, in particular to a connector pin ejection force testing tool.
Background
A connector is generally understood to mean an electromechanical element that connects a conductor (wire) with a suitable counterpart element, enabling the switching on and off of a current or signal. The method is widely applied to different fields of aerospace, communication and data transmission, new energy vehicles, rail transit, consumer electronics, medical treatment and the like.
The connector has many pins, and the main function of the connector pins is to interconnect with related equipment, so the pins of the connector are critical, and in order to keep the pins firm and stable, the following three methods are mainly adopted:
1. fixing the contact pin in a forced press-in mode;
2. after the insulator and the shell are punched, fixing the contact pin by using epoxy resin;
3. and after pressing, riveting the shell to fix the contact pin.
Regardless of the installation method, in order to ensure the conduction performance of the connector during the butt joint, the holding force test must be carried out on the connector pins to ensure the butt joint reliability. When the existing connector is actually installed and debugged, no effective detection tool can detect the retention force of the connector pin on the insulator. In practice, accidental breakage of the connector pins often occurs when pin retention is detected for a variety of reasons.
Chinese document CN 106568536a discloses a connector retention force testing device, which includes a docking assembly, a testing assembly, a mounting platform, a testing spring, a retaining member and a floating connecting member, the invention sets the docking assembly and the testing assembly on the mounting platform, and compares the elastic force generated by the deformation of the testing spring with the retention force of the connector, thereby judging whether the retention force of the connector is qualified; the deformation of the spring is detected through the displacement sensor, and the elastic force value of the spring can be controlled through the elastic coefficient of the spring. Although the scheme provides the device for testing the retention force of the connector pin, the device needs to be fixedly installed, is large in equipment and high in production cost, and cannot be used anytime and anywhere and is portable.
Chinese document CN 208568135U discloses an electric connector holding force testing device, which includes a testing connector, a testing pressure rod, a testing rod conversion part, a pressure sensor, a testing rod pressure cap, and a display instrument, wherein the testing connector is axially connected to one end of the testing pressure rod, the other end of the testing pressure rod is axially connected to one end of the pressure sensor through the testing rod conversion part, the other end of the pressure sensor is axially connected to the testing rod pressure cap, and the pressure sensor is externally connected to a display instrument through a circuit. A pressure sensor is installed on the test rod, a sensor signal is connected into a display instrument, axial thrust is controlled according to the upper limit of the stress of the test electric connector, and only the test connector is replaced. Although portability is achieved, test results are not intuitive enough, and test data are read under the condition that test force needs to be kept, but force applied by an operator is unstable, so that stability of the test results cannot be guaranteed.
Disclosure of Invention
In view of the above, there is a need for a connector pin ejection force testing tool that can adjust the testing force value and can visually feed back the testing result to the user.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a connector contact pin ejection force testing tool, includes power, indicator, elastic component and adaptation pole, the adaptation pole is the rigidity pole, has first end and second end, at least power, indicator form the electric circuit that has the switch break-make, the elastic component is used in the adaptation pole, the first end of adaptation pole is used in the connector contact pin, and its second end triggers after the adaptation pole overcomes the preset power value that the elastic component applyed to it the switch of electric circuit switches on, makes the indicator switched on the access the power and send signals.
Further, the electric circuit is composed of a power supply, an indicator and an adapter rod, the adapter rod is made of conductive materials, and the adapter rod is electrically connected with the power supply through a second end to form the trigger.
Furthermore, the adaptive rod comprises an adjusting rod and a fixed rod, the adjusting rod is connected with the fixed rod, and the distance between the adjusting rod and the indicator is changed by adjusting the relative length of the adjusting rod and the fixed rod so as to change the preset force value applied by the elastic piece.
Furthermore, the adjusting rod is connected with the fixed rod in a screw connection matching mode, and the adjustment of the relative length of the adjusting rod and the fixed rod is realized by adjusting the length of a screw thread lock between the adjusting rod and the fixed rod.
Furthermore, the first end of the adapter rod is detachably provided with an adapter terminal.
Furthermore, the adapter rod further comprises a sleeve, the adapter rod is arranged in the sleeve, and the first end of the adapter rod protrudes out of the front end part of the sleeve under the action of the elastic piece.
Furthermore, the adjusting rod further comprises a spring probe made of a conductive material, and the spring probe is arranged at one end facing the indicator.
Further, a nut is included to attach the indicator to the rear end of the sleeve.
Furthermore, the sleeve and the nut are made of conductive materials; the power sets up in the sleeve, the adaptation pole with the electric mode of connecting slip cup joint in the sleeve, the first utmost point of power with the nut electricity is connected, the second end of adaptation pole overcomes the elastic component and is connected with the power second utmost point electricity after the preset power value of exerting to it, and makes sleeve, adaptation pole, power, indicator and nut constitute the electric circuit that a switch switches on.
Furthermore, the nut is provided with a through hole for allowing an indicator indicating signal to penetrate through.
Further, the indicator is an element capable of emitting an acoustic and/or optical signal, such as a buzzer or an LED light post.
Compared with the prior art, the invention has the following beneficial effects:
1. the portable test device is convenient to carry, can be used anytime and anywhere, effectively adjusts the test force value and can visually feed back the test result to a user.
2. Through the interval distance between adjustment spring probe and the battery to can not change the spring, just realize the regulation of testing force value, simple structure, the cost of manufacture is low.
3. Different adapter terminals can be replaced according to different connector pins.
4. The test result is a fixed value, and once the indicator sends an indicating signal, the test force applied to the device does not need to be maintained any more, so that the stability of the test result is ensured.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is an exploded view of a first embodiment of the present invention.
Fig. 2 is a schematic view of an assembly structure according to a first embodiment of the present invention.
Fig. 3 is a schematic circuit diagram according to a first embodiment of the invention.
In the figure: 1-screw cap, 101-through hole, 2-buzzer, 3-insulating sleeve, 4-button battery, 5-spring, 6-spring probe, 7-sleeve, 8-adjusting rod, 9-adapting rod, 10-adapting terminal and 11-switch.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
First embodiment, as shown in fig. 1-2, a connector pin ejection force testing tool includes a nut 1, a buzzer 2, an insulating sleeve 3, a button cell 4, a spring 5, a spring probe 6, a sleeve 7, an adjusting rod 8, an adapting rod 9, and an adapting terminal 10.
The nut 1, the spring probe 6, the sleeve 7, the adjusting rod 8 and the adapting rod 9 are all made of metal products and are electrically connected with one another.
The nut 1 is screwed on the rear end of the sleeve 7 and seals the rear end of the sleeve 7, and a through hole 101 leading to the sleeve is arranged on the nut 1 and used for transmitting sound.
The insulating sleeve 3 is arranged at the inner rear part of the sleeve 7, the buzzer 2 is arranged at the inner rear end of the insulating sleeve 3, the button cell 4 is arranged at the inner front end of the insulating sleeve 3, the positive pole of the buzzer 2 is electrically connected with the nut 1, and the negative pole of the buzzer 2 is electrically connected with the negative pole of the button cell 4.
The spring probe 6, the adjusting rod 8 and the adapting rod 9 are sequentially arranged in the sleeve 7 from back to front, a counter bore for accommodating the spring probe 6 is arranged at the rear end part of the adjusting rod 8, the rear end of the spring 5 is abutted against the front end part of the insulating sleeve 3, the front end part acts on the adjusting rod 8, the front end part of the adapting rod 9 is driven by the adjusting rod 8 to protrude out of the front end part of the sleeve 7, and a distance is reserved between the rear end part of the spring probe 6 and the anode of the button battery 4; the front end of the adapting rod 9 is provided with a screw hole, and the adapting terminal 10 is screwed in the screw hole at the front end of the adapting rod 9.
In this embodiment, the adjusting rod 8 is in threaded connection with the adapting rod 9, and the adjustment of the distance between the rear end of the spring probe 6 and the buzzer 2 is realized by adjusting the length of the threaded locking between the adjusting rod 8 and the adapting rod 9. The sleeve is internally provided with a limiting part for limiting the rotation of the adjusting rod, and the length of the thread locking between the adjusting rod 8 and the adapting rod 9 can be adjusted only by rotating the adapting rod. Of course, the adjusting rod may be of other structures, such as a telescopic rod, but in order to adjust the distance between the rear end of the spring probe 6 and the buzzer 2 without disassembling the device, a threaded connection is preferred. Meanwhile, the device is stressed axially, and the threaded connection ensures uniform stress.
In this embodiment, a switch 11 of the buzzer 2 is formed between the button cell 4 and the spring probe 6. The circuit connection relationship is shown in fig. 3.
In this embodiment, the installation height of the spring probe 6 can be adjusted, and the distance between the rear end of the spring probe 6 and the buzzer 2 can be adjusted.
In the embodiment, the adaptive terminal is connected to the adaptive rod in a threaded manner; of course, other connection structures, such as plug-in connection, magnetic adsorption, snap-in connection structures, etc. can be selected; but the adapter terminal is stressed axially due to axial movement, the threaded connection ensures the connection stability of the adapter terminal and the uniformity of force transmission, axial and radial deflection does not occur, and other connection structures have defects in force transmission and stability.
In the embodiment, the rear end part of the outer side wall of the adapting rod 9 is provided with an annular first convex part, a T-shaped hole is formed in the sleeve 7, and the adapting rod 9 is embedded in the T-shaped hole, so that the adapting rod 9 is prevented from being separated from the front end of the sleeve 7; the front end part of the outer side wall of the adjusting rod 8 is provided with an annular second convex part, and the front end part of the spring 5 is propped against the rear end surface of the second convex part. This second convex part and first convex part looks spiro union, if first convex part lateral wall is provided with the external screw thread, the terminal surface is provided with the screw with external screw thread assorted before the second convex part.
The device composed of the nut, the sleeve, the spring and the adaptive rod is compact in structure, forms a compact handheld portable testing device with axial stress, can be used at any time and any place, is not limited by places, is low in manufacturing cost, has a direct and clear testing result, and is convenient for directly sensing the testing result.
The distance between the spring probe and the button battery is adjusted, so that the force to be applied by the spring is adjusted and overcome, the force value is a fixed value, and therefore the device is suitable for testing connectors of the same model, and the distance is required to be adjusted again when a connector of the same model is replaced; therefore, although the device is handheld, the mode that a pressure gauge or a numerical value meter needs to be seen in the prior art is changed, and once the force applied by the hand is changed in the prior art, the reading is inaccurate. The device fundamentally avoids the defect, only the applied force needs to be gradually increased, once the indicator sends an indicating signal, the test result is indicated, and the applied force does not need to be continuously maintained for reading or meter reading.
When the connector pin testing device is used, the corresponding adaptive terminal is selected according to the type of the connector pin to be tested, and the adaptive terminal is screwed at the front end part of the adaptive rod. According to the retention force value to be achieved by setting of the contact pin to be tested, the length of a thread locking pair between the adjusting rod and the adapting rod is adjusted, or the installation height of the spring probe is adjusted, so that the distance between the rear end face of the spring probe and the anode of the button battery is adjusted, the adapting rod overcomes the force applied by the spring, the rear end portion of the spring probe moves to the anode electrically connected with the button battery, and the force required by the distance for moving the adapting rod is the force value to be tested.
The adapting terminal is abutted to the connector pin, the sleeve is held by a hand, a force pressing to the pin is gradually applied to the sleeve, the front end part of the adapting rod acts on the connector pin and is subjected to a pressing force backwards along the axial direction of the sleeve, when the pressing force is gradually increased until the force is larger than or equal to the force applied to the adapting rod by the elastic mechanism, the adapting rod moves backwards, the rear end part of the spring probe is electrically connected with the anode of the button battery, the buzzer forms a closed loop from the nut, the sleeve, the adapting rod and the adjusting rod to the battery, and the buzzer sends out an acoustic signal. When the hand is loosened, the spring drives the spring probe, the adjusting rod and the adapting rod to reset, the rear end part of the spring probe is separated from the electric connection with the button cell, and the buzzer is closed.
Example two: the embodiment provides a connector pin ejection force testing tool capable of indicating light, and the structure of the embodiment is the same as that of the embodiment except that an LED lamp post is used for replacing a buzzer.
Example three: the embodiment provides a connector pin ejection force testing tool, which comprises an indicator with a built-in power supply, wherein a switch button for starting the indicator is arranged on the indicator, and the structures and the installation modes of a sleeve, a spring probe, an adaptive rod, an adjusting rod and an adaptive terminal are the same as those of the embodiment; meanwhile, the nut can be used or not. If a nut is used, the structure and mounting is the same as in the previous embodiment.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a connector contact pin ejection force testing tool which characterized in that: including power, indicator, elastic component and adaptation pole, the adaptation pole is the rigidity pole, has first end and second end, at least power, indicator form the electric circuit that has the switch break-make, the elastic component is used in on the adaptation pole, the first end of adaptation pole is used in on the connector contact pin, and its second end triggers after the adaptation pole overcomes the preset value that the elastic component applyed to it the switch of electric circuit switches on, makes the indicator switched on the access the power and send signals.
2. The connector pin ejection force testing tool of claim 1, wherein: the electric circuit is composed of a power supply, an indicator and an adapter rod, the adapter rod is made of conductive materials, and the adapter rod is electrically connected with the power supply through a second end to form the trigger.
3. The connector pin ejection force testing tool of claim 2, wherein: the adaptive rod comprises an adjusting rod and a fixed rod, the adjusting rod is connected with the fixed rod, and the distance between the adjusting rod and the indicator is changed by adjusting the relative length of the adjusting rod and the fixed rod so as to change the preset force value applied by the elastic piece.
4. The connector pin ejection force testing tool of claim 3, wherein: the adjusting rod is connected with the fixed rod in a threaded matching mode, and the length of the threaded locking between the adjusting rod and the fixed rod is adjusted to adjust the relative length of the adjusting rod and the fixed rod.
5. The connector pin ejection force testing tool of claim 3, wherein: the first end of the adapting rod is detachably provided with an adapting terminal.
6. The connector pin ejection force test tool according to any one of claims 3 to 5, wherein: the adapter rod is arranged in the sleeve, and the first end of the adapter rod protrudes out of the front end of the sleeve under the action of the elastic piece.
7. The connector pin ejection force testing tool of claim 6, wherein: the adjusting rod further comprises a spring probe made of a conductive material, and the spring probe is arranged at one end facing the indicator.
8. The connector pin ejection force testing tool of claim 7, wherein: a nut is included to attach the indicator to the rear end of the sleeve.
9. The connector pin ejection force testing tool of claim 8, wherein: the sleeve and the nut are made of conductive materials; the power sets up in the sleeve, the adaptation pole with the electric mode of connecting slip cup joint in the sleeve, the first utmost point of power with the nut electricity is connected, the second end of adaptation pole overcomes the elastic component and is connected with the power second utmost point electricity after the preset power value of exerting to it, and makes sleeve, adaptation pole, power, indicator and nut constitute the electric circuit that a switch switches on.
10. The connector pin ejection force testing tool of claim 9, wherein: the nut is provided with a through hole for allowing an indicator indicating signal to penetrate through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218783.XA CN110763386A (en) | 2019-12-03 | 2019-12-03 | Connector contact pin ejection force testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218783.XA CN110763386A (en) | 2019-12-03 | 2019-12-03 | Connector contact pin ejection force testing tool |
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| Publication Number | Publication Date |
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| CN110763386A true CN110763386A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911218783.XA Pending CN110763386A (en) | 2019-12-03 | 2019-12-03 | Connector contact pin ejection force testing tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188697A (en) * | 2021-04-15 | 2021-07-30 | 北京航天光华电子技术有限公司 | Thrust test pen |
-
2019
- 2019-12-03 CN CN201911218783.XA patent/CN110763386A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188697A (en) * | 2021-04-15 | 2021-07-30 | 北京航天光华电子技术有限公司 | Thrust test pen |
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