CN220270659U - Plug force detection device of electric connector contact - Google Patents

Abstract

The utility model discloses a plug force detection device of an electric connector contact, comprising: the device comprises a bracket, a detection weight, a standard needle, a driving component and a clamping component, wherein the standard needle is detachably and fixedly connected with the detection weight, a pressure sensor is arranged between the detection weight and the bracket, the clamping component is connected with the bracket through the driving component, the driving component drives the clamping component to move up and down, and the moving direction of the clamping component is coaxial with the central axis of the standard needle; according to the utility model, the clamping assembly is arranged to clamp the elastic contact element with small volume, so that the elastic contact element can be conveniently observed when being inserted and lifted; and the whole clamping assembly is controlled to move up and down through the driving assembly, so that the lifting speed, the lifting angle and the like can be accurately controlled, the influence of human factors on the separating force is avoided, and the inserting force can be detected through the arrangement of the pressure sensor.

Description

Plug force detection device of electric connector contact

Technical Field

The utility model relates to the technical field of electric connector detection, in particular to a device for detecting the insertion and extraction force of an electric connector contact.

Background

Electrical connector contacts are important component parts of the connector, and various properties of the contacts directly affect the corresponding electrical, mechanical, environmental, etc. properties of the connector. Wherein the insertion and extraction forces of the contact pairs directly affect the working current, contact resistance, mechanical life, etc. of the connector. If the plugging force of the contact pair is too weak, poor contact and open circuit are likely to occur after the connector is put into practical use; if the insertion and extraction force of the contact pair is too large, the connector can be possibly not inserted after being put into practical use, and the connector device is damaged after multiple times of insertion and extraction. All types of spring contacts (in the form of leaf spring receptacles, plain wire spring receptacles, closely wound wire spring receptacles, crown spring receptacles, etc.) are inspected for insertion and removal forces prior to being formally installed in the connector

The insertion force includes an insertion force and a separation force, and for the separation force, more manual detection is adopted at present, namely, the separation force is determined by manually pulling by an operator, but the separation force is greatly influenced by human factors, such as the lifting speed, the lifting direction and the like. Especially for small products (the elastic contact piece is smaller than the finger, and operators can not observe the state of the product well when inserting and lifting), different operators can detect different results. At the same time, the insertion force cannot be detected.

Disclosure of Invention

The utility model aims to provide a plug force detection device for an electric connector contact, which can not detect the plug force and has lower detection precision for the separation force, and can detect the plug force and the separation force.

The utility model is realized by the following technical scheme:

an electrical connector contact insertion and extraction force detection device, comprising: the device comprises a bracket, a detection weight, a standard needle, a driving component and a clamping component, wherein the standard needle is detachably and fixedly connected with the detection weight, a pressure sensor is arranged between the detection weight and the bracket, the clamping component for clamping an elastic contact piece is arranged above the detection weight, the elastic contact piece is positioned right above the standard needle, the clamping component is connected with the bracket through the driving component, the driving component drives the clamping component to move up and down, and the moving direction of the clamping component is coaxial with the central axis of the standard needle;

the detecting weight comprises:

a lower weight, the lower side surface of which is provided with a placing groove, and a through hole is arranged between the upper side surface of the placing groove and the upper side surface of the lower weight;

the upper weight comprises a weight block and a weight rod, the weight block is arranged in the placing groove, the thickness of the weight block is smaller than the depth of the placing groove, the weight block can move up and down along the placing groove, and the lower end of the weight rod passes through the through hole and is fixedly connected with the upper side face of the weight block;

the standard needle is arranged above the upper weight and is detachably and fixedly connected with the upper end of the weight rod, the weight of the upper weight is the lower limit value of the separating force, and the sum of the weights of the upper weight and the lower weight is the upper limit value of the separating force.

Specifically, the length of weight pole is not less than the thickness of lower weight, the upper end of weight pole is provided with and is used for installing the mounting hole of standard needle, the side of mounting hole is provided with the screw that runs through, the lower extreme of standard needle inserts to the mounting hole, pass the screw of screw is right the radial effort that is used for fixed is applyed to standard needle.

Optionally, the lower weight is in a circular structure, the placing groove is a circular groove, the weight block is in a circular structure, the through hole is a circular hole, and the weight rod is a circular rod;

the diameter of the weight rod is smaller than that of the through hole; the diameter of the weight block is smaller than the inner diameter of the circular groove;

the lower weights, the placing grooves, the weight blocks, the through holes and the weight rods are all coaxially arranged.

Specifically, the bracket includes: bottom plate, erects frame, backup pad, the bottom plate level set up and with the lower extreme fixed connection of erectting the frame, drive assembly with the upper end fixed connection of erectting the frame, the backup pad level sets up the upside of bottom plate, pressure sensor sets up the backup pad with between the bottom plate, the detection weight is placed in the backup pad.

Optionally, the pressure sensor is electrically connected to the drive assembly.

Specifically, the drive assembly includes:

the fixing plate is vertically arranged and provided with a first side face and a second side face, the first side face of the fixing plate is fixedly connected with the upper end of the bracket, and the second side face of the fixing plate is provided with a vertical sliding groove;

the sliding block is arranged in the sliding groove, the sliding block slides up and down along the sliding groove, a threaded hole penetrating up and down is formed in the sliding block, and the clamping assembly is connected with the sliding block;

the servo motor is fixedly arranged at the upper end of the fixed plate, and a torque output shaft of the servo motor is vertically arranged;

the upper end of the single shaft is in power connection with a torque output shaft of the servo motor through a coupler, the single shaft is vertical in the threaded hole, and the single shaft is in threaded connection with the sliding block.

Further, the driving assembly further comprises an upper travel switch and a lower travel switch, wherein the upper travel switch and the lower travel switch are used for controlling the servo motor, and the upper travel switch and the lower travel switch are fixedly arranged on the fixed plate;

the upper end of the sliding block is matched with the upper travel switch, and the lower end of the sliding block is matched with the lower travel switch.

Specifically, when the upper end of the sliding block is matched with the upper travel switch, a gap is arranged between the elastic contact piece and the standard needle;

when the lower end of the sliding block is matched with the down travel switch, the elastic contact piece is inserted and combined with the standard needle.

Optionally, the clamping assembly comprises: the parallel opening and closing gas claw is connected with the gas claw fixing plate, the gas claw fixing plate is fixedly connected with the sliding block, fingers of the parallel opening and closing gas claw are connected with chucks used for clamping the elastic contact piece, and the two chucks are located above the detection weight.

Further, a drag chain is arranged between the air claw fixing plate and the fixing plate.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

according to the utility model, the clamping assembly is arranged to clamp the elastic contact element with small volume, so that the elastic contact element can be conveniently observed when being inserted and lifted; the driving assembly is used for controlling the up-and-down movement of the whole clamping assembly, so that the lifting speed, the lifting angle and the like can be accurately controlled, and the influence of human factors on the separating force is avoided; in addition, the utility model can detect the insertion force by arranging the pressure sensor.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the principles of the utility model.

Fig. 1 is a schematic structural view of a device for detecting insertion and removal force of a contact of an electrical connector according to the present utility model.

Fig. 2 is a schematic view of the structure of the drive assembly and the clamping assembly according to the present utility model.

Reference numerals: 100-elastic contact piece, 1-standard needle, 2-pressure sensor, 3-upper weight, 31-lower weight, 32-screw, 4-vertical frame, 41-bottom plate, 42-backup pad, 5-drive assembly, 51-fixed plate, 52-servo motor, 53-unipolar, 54-shaft coupling, 55-slider, 56-upper limit switch, 6-clamping assembly, 61-gas claw fixed plate, 62-parallel open and close gas claw, 63-chuck, 7-drag chain.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and embodiments, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the utility model.

It should be further noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Embodiments of the present utility model and features of the embodiments may be combined with each other without conflict. The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 1, the present embodiment provides a device for detecting insertion and removal force of a contact of an electrical connector, including: support, check weight, standard needle 1, actuating assembly 5 and clamping assembly 6, fixed connection can be dismantled to standard needle 1 and check weight, are provided with pressure sensor 2 between check weight and the support for the clamping assembly 6 setting of centre gripping elastic contact spare 100 is in the top of check weight, and elastic contact spare 100 is located directly over standard needle 1, and clamping assembly 6 passes through actuating assembly 5 and leg joint, and actuating assembly 5 drive clamping assembly 6 reciprocates, and the direction of movement of clamping assembly 6 is coaxial with the axis of standard needle 1.

Different standard needles 1 need to be adapted in detecting different elastic contacts 100, and the standard needles 1 can be replaced according to specific situations. After the replacement is completed, the standard needle 1 is mounted to the detecting weight, and the detecting weight is placed at a corresponding position. Then the elastic contact piece 100 to be detected is clamped by the clamping assembly 6, the clamping assembly 6 is moved downwards by the driving assembly 5, and finally the elastic contact piece 100 is inserted into the standard needle 1.

After the insertion is completed, the driving assembly 5 drives the clamping assembly 6 to move upwards, and the separation force of the elastic contact 100 is detected through the detection weight.

By providing the pressure sensor 2, the insertion force can be detected, i.e. the pressure sensor 2 will detect an increase in pressure during insertion, and when the drive assembly 5 reaches the maximum value of the downward movement, the insertion force will be proved to be acceptable if the pressure detected by the pressure sensor 2 does not exceed the maximum value.

As shown in fig. 1, the detecting weight is used for realizing detection of a separating force, and the detecting weight includes: a lower weight 31 and an upper weight 3.

A placing groove is formed in the lower side face of the lower weight 31, and a through hole is formed between the upper side face of the placing groove and the upper side face of the lower weight 31;

the upper weight 3 comprises a weight block and a weight rod, the weight block is arranged in the placing groove, the thickness of the weight block is smaller than the depth of the placing groove, the weight block can move up and down along the placing groove, and the lower end of the weight rod passes through the through hole and is fixedly connected with the upper side surface of the weight block; the standard needle 1 is arranged above the upper weight 3 and is detachably and fixedly connected with the upper end of the weight rod, the weight of the upper weight 3 is the lower limit value of the separating force, and the sum of the weights of the upper weight 3 and the lower weight 31 is the upper limit value of the separating force.

The length of the weight bar is not less than the thickness of the lower weight 31, the upper end of the weight bar is provided with a mounting hole for mounting the standard needle 1, the side surface of the mounting hole is provided with a penetrating screw hole, the lower end of the standard needle 1 is inserted into the mounting hole, and a radial acting force for fixing is applied to the standard needle 1 by a screw 32 penetrating the screw hole.

The working principle of the detecting weight is as follows: when the standard pin 1 is lifted up by the elastic contact 100, if the upper weight 3 can be lifted up, that is, if the pressure sensor 2 detects that the pressure is equal to the weight of the lower weight 31, the separation force is proved to be greater than the lower limit value.

If the pressure sensor 2 cannot detect the weight of the entire detection weight, it is verified that the separation force is larger than the upper limit value by simultaneously lifting the weights of the upper weight 3 and the lower weight 31.

That is, the standard range of separation forces is: the upper weight 3 can be lifted, but the upper weight 3+ the lower weight 31 cannot be lifted.

Providing a specific structure, namely a circular structure, wherein the lower weights 31 are circular structures, the placing grooves are circular grooves, the weight blocks are circular structures, the through holes are circular holes, and the weight rods are circular rods;

the diameter of the weight rod is smaller than that of the through hole; the diameter of the weight block is smaller than the inner diameter of the circular groove;

the lower weight 31, the placement groove, the weight block, the through hole and the weight rod are all coaxially arranged.

Example two

In order to make it better for the pressure sensor 2 to detect the lifting of the upper weight 3, the setting bracket comprises: the bottom plate 41, erect frame 4, backup pad 42, bottom plate 41 level setting and with erect the lower extreme fixed connection of frame 4, drive assembly 5 and erect the upper end fixed connection of frame 4, backup pad 42 level setting is in the upside of bottom plate 41, and pressure sensor 2 sets up between backup pad 42 and bottom plate 41, and the detection weight is placed on backup pad 42.

That is, the pressure sensor 2 detects the weight of the support plate 42+ and the weight of the detection weight needs to be subtracted from the weight of the support plate 42 when the detection weight is pulled up.

In addition, in order to avoid an excessive insertion force, the pressure sensor 2 is electrically connected to the driving assembly 5, and when the pressure sensor 2 detects the excessive insertion force, the driving assembly 5 is controlled to stop moving down.

Example III

As shown in fig. 2, the present embodiment describes a driving assembly 5, and the driving assembly 5 includes: a fixed plate 51, a slider 55, a servo motor 52 and a single shaft 53.

The fixed plate 51 is vertically arranged, the fixed plate 51 is provided with a first side surface and a second side surface, the first side surface of the fixed plate 51 is fixedly connected with the upper end of the bracket, and the second side surface of the fixed plate 51 is provided with a vertical chute; the sliding block 55 is arranged in the sliding groove, the sliding block 55 slides up and down along the sliding groove, a threaded hole penetrating up and down is formed in the sliding block 55, and the clamping assembly 6 is connected with the sliding block 55; the servo motor 52 is fixedly arranged at the upper end of the fixed plate 51, and a torque output shaft of the servo motor 52 is vertically arranged; the upper end of the single shaft 53 is in power connection with a torque output shaft of the servo motor 52 through a coupler 54, the single shaft 53 is vertically arranged in a threaded hole, and the single shaft 53 is in threaded connection with a sliding block 55.

The slider 55 and the single shaft 53 form a threaded screw structure, and the single shaft 53 is driven to rotate by the servo motor 52, so that the slider 55 can move up and down, and then the clamping assembly 6 is connected with the slider 55, so that the clamping assembly 6 can move up and down.

In addition, in order to avoid damage to the standard needle 1 and/or the elastic contact member 100 due to excessive travel of the clamping assembly 6 moving up or down, the driving assembly 5 further includes an upper travel switch and a lower travel switch, both of which are used for controlling the servo motor 52, and both of which are fixedly disposed on the fixing plate 51;

the upper end of the slider 55 is engaged with the upper travel switch, and the lower end of the slider 55 is engaged with the lower travel switch.

When the upper end of the sliding block 55 is matched with the upper travel switch, a gap is arranged between the elastic contact piece 100 and the standard needle 1; when the lower end of the slider 55 is engaged with the down switch, the elastic contact 100 is inserted with the standard needle 1.

I.e. the travel distance of the clamping assembly 6 = the distance between the upper travel switch and the lower travel switch-the height of the slider 55.

Example IV

To achieve clamping of the resilient contact 100, the clamping assembly 6 comprises: the air claw fixing plate 61 and the parallel opening and closing air claw 62, the parallel opening and closing air claw 62 is connected with the air claw fixing plate 61, the air claw fixing plate 61 is fixedly connected with the sliding block 55, fingers of the parallel opening and closing air claw 62 are connected with clamping heads 63 for clamping the elastic contact piece 100, and the two clamping heads 63 are located above the detecting weight. Clamping or unclamping of the resilient contact 100 is achieved by pneumatically driving the two grippers 63 towards or away from each other.

A drag chain 7 is arranged between the air claw fixing plate 61 and the fixing plate 51, and an air path, an electric circuit and the like between the clamping assembly 6 and the driving assembly 5 are arranged in the drag chain 7.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the utility model. Other variations or modifications of the above-described utility model will be apparent to those of skill in the art, and are still within the scope of the utility model.

Claims (10)

1. An electrical connector contact insertion and extraction force detection device, comprising: the device comprises a bracket, a detection weight, a standard needle (1), a driving component (5) and a clamping component (6), wherein the standard needle (1) is detachably and fixedly connected with the detection weight, a pressure sensor (2) is arranged between the detection weight and the bracket, the clamping component (6) for clamping an elastic contact piece (100) is arranged above the detection weight, the elastic contact piece (100) is positioned right above the standard needle (1), the clamping component (6) is connected with the bracket through the driving component (5), the driving component (5) drives the clamping component (6) to move up and down, and the moving direction of the clamping component (6) is coaxial with the central axis of the standard needle (1);

the detecting weight comprises:

a lower weight (31) with a placement groove arranged on the lower side surface, wherein a through hole is arranged between the upper side surface of the placement groove and the upper side surface of the lower weight (31);

the upper weight (3) comprises a weight block and a weight rod, the weight block is arranged in the placing groove, the thickness of the weight block is smaller than the depth of the placing groove, the weight block can move up and down along the placing groove, and the lower end of the weight rod passes through the through hole and is fixedly connected with the upper side face of the weight block;

the standard needle (1) is arranged above the upper weight (3) and is detachably and fixedly connected with the upper end of the weight rod, the weight of the upper weight (3) is the lower limit value of the separating force, and the sum of the weights of the upper weight (3) and the lower weight (31) is the upper limit value of the separating force.

2. The plugging force detection device of an electrical connector contact according to claim 1, wherein the length of the weight bar is not smaller than the thickness of the lower weight (31), the upper end of the weight bar is provided with a mounting hole for mounting the standard pin (1), the side surface of the mounting hole is provided with a screw hole penetrating therethrough, the lower end of the standard pin (1) is inserted into the mounting hole, and a screw (32) penetrating through the screw hole applies a radial acting force for fixing the standard pin (1).

3. The insertion and extraction force detection device of an electrical connector contact according to claim 1 or 2, wherein the lower weight (31) has a circular structure, the placement groove has a circular groove, the weight block has a circular structure, the through hole has a circular hole, and the weight rod has a circular rod;

the diameter of the weight rod is smaller than that of the through hole; the diameter of the weight block is smaller than the inner diameter of the circular groove;

the lower weights (31), the placing grooves, the weight blocks, the through holes and the weight rods are all coaxially arranged.

4. The insertion and extraction force detection device of an electrical connector contact of claim 1, wherein the bracket comprises: bottom plate (41), erect frame (4) and backup pad (42), bottom plate (41) level set up and with the lower extreme fixed connection of erecting frame (4), drive assembly (5) with the upper end fixed connection of erecting frame (4), backup pad (42) level set up the upside of bottom plate (41), pressure sensor (2) set up backup pad (42) with between bottom plate (41), the detection weight is placed on backup pad (42).

5. The insertion and extraction force detection device of an electrical connector contact according to claim 4, wherein the pressure sensor (2) is electrically connected to the drive assembly (5).

6. The insertion and extraction force detection device of an electrical connector contact according to claim 1, wherein the drive assembly (5) comprises:

the fixing plate (51) is vertically arranged, the fixing plate (51) is provided with a first side face and a second side face, the first side face of the fixing plate (51) is fixedly connected with the upper end of the bracket, and the second side face of the fixing plate (51) is provided with a vertical sliding groove;

the sliding block (55) is arranged in the sliding groove, the sliding block (55) slides up and down along the sliding groove, a threaded hole penetrating up and down is formed in the sliding block (55), and the clamping assembly (6) is connected with the sliding block (55);

a servo motor (52) fixedly arranged at the upper end of the fixed plate (51), wherein a torque output shaft of the servo motor (52) is vertically arranged;

the upper end of the single shaft (53) is in power connection with a torque output shaft of the servo motor (52) through a coupler (54), the single shaft (53) is vertically arranged in the threaded hole, and the single shaft (53) is in threaded connection with the sliding block (55).

7. The insertion and extraction force detection device of an electrical connector contact according to claim 6, wherein the drive assembly (5) further comprises an upper travel switch and a lower travel switch, both of which are used for controlling the servo motor (52), both of which are fixedly provided on the fixed plate (51);

the upper end of the sliding block (55) is matched with the upper travel switch, and the lower end of the sliding block (55) is matched with the lower travel switch.

8. The insertion and extraction force detection device of an electrical connector contact according to claim 7, characterized in that a gap is provided between the elastic contact (100) and the standard pin (1) when the upper end of the slider (55) is mated with the upper travel switch;

when the lower end of the sliding block (55) is matched with the down travel switch, the elastic contact piece (100) is inserted with the standard needle (1).

9. The insertion and extraction force detection device of an electrical connector contact according to claim 6, wherein the clamping assembly (6) comprises: the device comprises a gas claw fixing plate (61) and parallel opening and closing gas claws (62), wherein the parallel opening and closing gas claws (62) are connected with the gas claw fixing plate (61), the gas claw fixing plate (61) is fixedly connected with a sliding block (55), fingers of the parallel opening and closing gas claws (62) are connected with clamping heads (63) used for clamping an elastic contact piece (100), and the two clamping heads (63) are located above a detection weight.

10. The insertion and extraction force detection device of an electrical connector contact according to claim 9, wherein a drag chain (7) is provided between the gas claw fixing plate (61) and the fixing plate (51).