CN113358903A

CN113358903A - Direct needle inserting mechanism

Info

Publication number: CN113358903A
Application number: CN202110611461.2A
Authority: CN
Inventors: 王钊; 江雄; 曾佳立; 卢志; 吴丰礼
Original assignee: Guangdong Topstar Technology Co Ltd
Current assignee: Guangdong Topstar Technology Co Ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-09-07
Anticipated expiration: 2041-06-01
Also published as: CN113358903B

Abstract

The invention discloses a direct pricking mechanism which comprises a mechanism frame body, a sliding driver, a first pricking needle, a first plate body, a guide piece and an elastic piece. The sliding frame body slides on the mechanism frame body, the sliding driver is arranged on the mechanism frame body, and the first puncture needle is arranged on the sliding frame body and extends out of the sliding frame body along a first direction; the first plate body is positioned right in front of the first puncture needle, the first plate body is provided with a first guide hole aligned with the first puncture needle and a positioning groove communicated with the first guide hole, the positioning groove is positioned at the front side of the first plate body, and the positioning groove is respectively arranged in a penetrating manner along the first direction and the direction parallel to the third direction; the guide piece penetrates through the first plate body and the sliding frame body along the first direction, the elastic piece is arranged between the first plate body and the sliding frame body, and the elastic piece constantly has the tendency of driving the first plate body to slide relative to the sliding frame body along the first direction so as to enable the first puncture needle to slide out of the positioning groove; so that the connecting wire is positioned by the positioning groove before the first needle punctures the connecting wire.

Description

Direct needle inserting mechanism

Technical Field

The invention relates to a test device, in particular to a direct pricking mechanism in the test device.

Background

With the continuous development of economy and the continuous progress of society, various material consumer goods are provided for the life of people, and electronic products are one of the material consumer goods.

As is well known, smart phones, tablet computers, notebook computers, and the like all belong to electronic products. For the smart phone, the smart phone can not be used in a mobile phone power protection board. In the production process of the mobile phone power protection board, the free end of the connecting line in the PCB board and the connecting line which are welded together can not be pricked, so that the performance test of the PCB board and the connecting line which are welded together can be met.

The wire diameter of the connecting wire welded with the PCB is very small, generally 0.5 mm, so that the free end of the connecting wire is very easy to bend, and therefore, the conventional pricking mechanism presses the free end of the connecting wire by using a large metal sheet and then the pricking pin is abutted against the metal sheet, so that the electric connection between the pricking pin and the connecting wire is realized by using a middle bridge lifted by the metal sheet.

However, this presents a high and low impedance consistency, i.e. different impedances each time, since the metal sheet is in different positions in electrical contact with the connection lines each time, resulting in different portions of the intermediate bridge that the metal sheet plays each time.

Therefore, a direct needling mechanism with good impedance consistency and high success rate is needed to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a direct pricking mechanism with good impedance consistency and high success rate.

In order to achieve the above purpose, the direct pricking mechanism of the present invention comprises a mechanism frame, a sliding driver, a first pricking pin, a first plate, a guiding element and an elastic element. The sliding frame body is arranged on the mechanism frame body in a sliding mode, the sliding driver is assembled on the mechanism frame body, the first puncture needle is assembled on the sliding frame body, the sliding driver drives the sliding frame body and the first puncture needle to perform puncture sliding along a first direction or perform exit sliding along a second direction opposite to the first direction, and the first puncture needle further extends out of the sliding frame body along the first direction; the first plate body is located right in front of the first puncture needle along the first direction, the first plate body is provided with a first guide hole aligned with the first puncture needle and a positioning groove communicated with the first guide hole, the first guide hole penetrates through the first plate body along the direction parallel to the first direction, the positioning groove is located at the front side of the first plate body, the positioning grooves are respectively arranged along the first direction and the direction parallel to a third direction in a penetrating manner, and the third direction is perpendicular to the first direction; the utility model discloses a sliding rack, including first plate body, slip support body, guide piece and elastic component, the guide piece and elastic component respectively with constant head tank and first guiding hole stagger mutually, the guide piece is along being on a parallel with the first direction is worn to arrange in first plate body and slip support body, the elastic component is located first plate body with between the slip support body, the elastic component has constantly and orders about first plate body is followed the first direction is relative slip support body slides so that first pricking needle roll-off the trend of constant head tank.

Preferably, a protruding block structure protruding forward along the first direction is arranged on the front side of the first plate body, the positioning groove is formed in the protruding block structure, and the positioning groove penetrates through the protruding block structure along the first direction and a direction parallel to the third direction respectively.

Preferably, the first needles are arranged in a plurality of rows at intervals along a fourth direction perpendicular to the first direction, each of the first needles corresponds to one of the positioning grooves and one of the first guide holes, and the first direction, the third direction and the fourth direction together form three-dimensional coordinates of XYZ axes.

Preferably, the plurality of bump structures are arranged in a row at intervals along the fourth direction, and each bump structure is provided with two positioning grooves.

Preferably, the direct pricking mechanism further includes second pricking pins mounted on the sliding frame body and extending forward from the sliding frame body along the first direction, the number of the second pricking pins is the same as that of the first pricking pins, each second pricking pin is aligned with a corresponding first pricking pin along the third direction, the first plate body is further provided with a second guide hole aligned with the second pricking pin, and the second guide hole penetrates through the first plate body along a direction parallel to the first direction.

Preferably, the direct pricking mechanism of the present invention further comprises a first positioning pin and a second positioning pin mounted on the first plate and spaced apart from each other along the fourth direction, the first positioning pin and the second positioning pin each protrude forward of the first plate along the first direction, and the protrusion structure is located between the first positioning pin and the second positioning pin along the fourth direction.

Preferably, the sliding frame body contain with mechanism support body sliding connection's slip even frame, assemble in the suspension frame of slip even frame reaches along first direction is located the suspension board in the dead ahead of suspension frame, the suspension board with suspension frame assembly connection, first needle assembly in the suspension board, first plate body is followed first direction is located the dead ahead of suspension board, the elastic component is located the suspension board with between the first plate body, the guide wear to be arranged in suspension board and first plate body.

Preferably, the sliding frame body further includes an intermediate connection rod connected between the suspension frame and the suspension plate and arranged in the first direction, and the guide is located beside the intermediate connection rod.

Preferably, the suspension frame and the sliding connection frame together enclose an "L" shape, and the sliding connection frame and the mechanism frame body are stacked on each other along the third direction.

Preferably, the direct pricking mechanism further comprises a screw rod rotatably assembled on the mechanism frame body and a nut slidably sleeved on the screw rod, the screw rod is arranged in a direction parallel to the first direction, the sliding frame body is fixedly connected with the nut, and the sliding driver drives the screw rod to rotate.

Compared with the prior art, in the process that the sliding driver drives the sliding frame body and the first pricking pin to penetrate and slide along the first direction by virtue of the elastic element, the guide element, the positioning groove and the first guide hole of the first plate body, the first plate body is firstly contacted with a carrier for bearing the PCB and the connecting wire which are welded together, then the first plate body overcomes the elasticity of the elastic element due to the pushing of the carrier, so that the first pricking pin enters the positioning groove through the first guide hole, and because the positioning groove positions and restrains the free end of the connecting wire in the PCB and the connecting wire which are welded together and are borne by the carrier when the first plate body is contacted with the carrier, the free end of the connecting wire entering the positioning groove can not be bent and warped randomly, so that the first pricking pin which enters the positioning groove and is guided by the first guide hole can directly penetrate into the free end of the connecting wire positioned and restrained by the positioning groove, thereby ensuring impedance consistency and improving success rate.

Drawings

Fig. 1 is a perspective view of the direct pricking mechanism of the present invention.

Fig. 2 is a plan view of the direct pricking mechanism shown in fig. 1, in a forward projection in the Y-axis direction.

Fig. 3 is a schematic perspective view of the first plate, the elastic member, the first needle, the second needle and the guide member of the direct needle inserting mechanism of the present invention assembled to the sliding frame.

Fig. 4 is a back projection of the direct pricking mechanism of fig. 1 in the Z-axis direction and showing a plan view of the carrier.

Fig. 5 is a schematic view of the direct pricking mechanism shown in fig. 4 in a state where the first plate is in contact with the carrier.

Fig. 6 is a schematic view of the direct pricking mechanism shown in fig. 4, after the first plate is blocked by the carrier, the first pricking pin passes through the first guiding hole and pricks into the connecting line restricted by the positioning slot.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the direct pricking mechanism 100 of the present invention includes a mechanism frame 10, a sliding frame 20, a sliding driver 30, a first pricking pin 40, a first plate 50, a guiding element 60 and an elastic element 70. The sliding frame body 20 is slidably disposed on the mechanism frame body 10, so that the sliding frame body 20 can slide on the mechanism frame body 10; the sliding driver 30 is assembled on the mechanism frame body 10, and the mechanism frame body 10 provides a supporting and fixing function for the sliding driver 30; the first needle inserting device 40 is assembled on the sliding frame body 20, so that the sliding frame body 20 can slide together with the first needle inserting device 40 relative to the mechanism frame body 10, and the sliding driver 30 drives the sliding frame body 20 to make the inserting sliding movement along a first direction (such as the positive direction of the X-axis direction in the drawing) or make the withdrawing sliding movement along a second direction (such as the reverse direction of the X-axis direction in the drawing) opposite to the first direction together with the first needle inserting device 40; the first puncture needle 40 further extends out of the sliding frame body 20 in the first direction to prevent the sliding frame body 20 from causing an obstacle to the puncture operation of the first puncture needle 40; the first plate 50 is located right in front of the first needle 40 along the first direction, the first plate 50 is provided with a first guiding hole 51 aligned with the first needle 40 and a positioning groove 52 communicated with the first guiding hole 51, the first guiding hole 51 penetrates the first plate 50 along a direction parallel to the first direction, the positioning groove 52 is located at the front side of the first plate 50, the positioning groove 52 is further arranged in a penetrating manner along the first direction and a direction parallel to the third direction, respectively, the third direction (for example, the forward direction of the Z-axis direction in the drawing) is perpendicular to the first direction, preferably, in fig. 1 and 3, the positioning groove 52 is arranged in a penetrating manner along the first direction in addition to the first direction, of course, according to actual needs, the positioning groove 52 can also be arranged in a penetrating manner along the opposite direction of the first direction, or the positioning groove 52 is arranged in a penetrating manner along the first direction and the opposite direction, therefore, not limited to the attached drawings; the guide member 60 and the elastic member 70 are respectively staggered with respect to the positioning groove 52 and the first guide hole 51, that is, the guide member 60 and the elastic member 70 are respectively not aligned with the positioning groove 52 and the first guide hole 51 along the first direction, the guide member 60 is disposed through the first plate 50 and the sliding frame body 20 along the direction parallel to the first direction to provide a guiding function for the sliding movement of the first plate 50 with respect to the sliding frame body 20 by means of the guide member 60, specifically, in fig. 1 and 3, a first end of the guide member 60 is disposed through the first plate 50 and fixed with the first plate 50, a second end of the guide member 60 is disposed through the sliding frame body 20 (specifically, the suspension plate 23 described below) along the second direction and provided with a blocking structure 61, of course, according to actual needs, the first end of the guide member 60 may be disposed through the suspension plate 23 and fixed with the suspension plate 23, the second end of the guide member 60 is disposed through the first plate 50 along the first direction and provided with the blocking structure 61, therefore, not limited to the attached drawings; the elastic element 70 is disposed between the first plate 50 and the sliding frame 20, and the elastic element 70 constantly has a tendency to drive the first plate 50 to slide along the first direction relative to the sliding frame 20 so as to slide the first needle 40 out of the positioning slot 52, as shown in fig. 3; since the blocking structure 61 is in blocking fit with the sliding frame body 20 (specifically, the suspension plate 23), the first plate body 50 is prevented from being accidentally detached from the sliding frame body 20 along the first direction. Specifically, in fig. 1 and 3, a guide 60 is inserted through each corner of the first plate 50 to ensure the smoothness of the sliding movement of the first plate 50 relative to the sliding frame 20; the elastic members 70 are arranged in three and spaced-apart relation along a fourth direction (e.g., a positive direction of the Y-axis direction in the drawings) described below, so as to ensure that the elastic force of the elastic members 70 is more uniform at all places of the first plate 50, and of course, the elastic members 70 may be one, two or four, but not limited to these, according to actual needs. More specifically, the following:

as shown in fig. 1 to 3, a protrusion structure 53 protruding forward along a first direction is disposed on a front side of the first plate 50, the positioning groove 52 is formed on the protrusion structure 53, and the positioning groove 52 penetrates through the protrusion structure 53 along the first direction and a direction parallel to a third direction, respectively, so that the positioning groove 52 is formed at the protrusion structure 53 by the protrusion structure 53, thereby facilitating the manufacturing process of the positioning groove 52. Specifically, in fig. 1 to 3, the first pins 40 are eight and are arranged in a row at intervals in a fourth direction perpendicular to the first direction, each first pin 40 corresponds to one positioning groove 52 and one first guide hole 51, and the first direction, the third direction and the fourth direction together form three-dimensional coordinates of XYZ axes; meanwhile, the four bump structures 53 are arranged in a row at intervals along the fourth direction, and each bump structure 53 is provided with two positioning slots 52, that is, the number of any one of the first needle 40, the first guiding hole 51 and the positioning slot 52 is twice that of the bump structure 53, so as to meet the test requirement. It should be noted that, according to actual needs, the number of the first needles 40 may be two, four or more even numbers, and is not limited to the above; in addition, according to actual needs, the bump structures 53 on the first plate 50 can be removed, and the positioning grooves 52 respectively penetrate through the front side of the first plate 50 along the first direction and the direction parallel to the third direction, so the description is not limited thereto.

As shown in fig. 2 and 3, the direct pricking mechanism 100 of the present invention further includes second pricking pins 80 mounted on the sliding frame 20 and extending forward from the sliding frame 20 along the first direction, the number of the second pricking pins 80 is the same as that of the first pricking pins 40, each second pricking pin 80 is aligned with a corresponding first pricking pin 40 along the third direction, the first board 50 is further provided with a second guiding hole 54 aligned with the second pricking pin 80, and the second guiding hole 54 penetrates through the first board 50 along the first direction, so that the second pricking pin 80 can electrically contact a PCB carried by the carrier 200 (see fig. 4) to meet the testing requirement. For example, the first needle 40 and the second needle 80 are each probes, but not limited thereto. In order to enable the first plate 50 to be positioned more reliably and accurately with the carrier 200 during the process of following the sliding rack 20 for piercing and sliding, the direct pricking mechanism 100 of the present invention further includes a first positioning pin 91 and a second positioning pin 92 assembled on the first plate 50 and spaced apart from each other along a fourth direction, wherein the first positioning pin 91 and the second positioning pin 92 each protrude forward of the first plate 50 along the first direction, and the protrusion 53 is located between the first positioning pin 91 and the second positioning pin 92 along the fourth direction.

As shown in fig. 1 to 2, and 4 to 6, the sliding frame body 20 includes a sliding frame 21 slidably coupled to the mechanism frame body 10, a suspension frame 22 mounted to the sliding frame 21, a suspension plate 23 located right in front of the suspension frame 22 in a first direction, and an intermediate connection rod 24 connected between the suspension frame 22 and the suspension plate 23 and arranged in the first direction. The first puncture needle 40 is assembled on the suspension plate 23, the first plate body 50 is positioned right in front of the suspension plate 23 along the first direction, the elastic piece 70 is arranged between the suspension plate 23 and the first plate body 50, the guide piece 60 penetrates through the suspension plate 23 and the first plate body 50, and the guide piece 60 is positioned beside the middle connecting rod 24; this is designed to bias the first needle 40, the first plate 50, the guide member 60, the elastic member 70, the first positioning pin 91 and the second positioning pin 92 in the third direction with respect to the slide attachment frame 21, as shown in fig. 2, so as to provide more sufficient space for placing the carrier 200. Specifically, in fig. 2, the suspension frame 22 and the slide frame 21 together enclose an "L" shape, and the slide frame 21 and the mechanism frame body 10 are stacked on each other in the third direction, so that the space between the slide frame body 20 and the mechanism frame body 10 is more compact. It can be understood that, according to actual needs, the intermediate connecting rod 24 can be eliminated, and the suspension plate 23 is assembled and connected with the suspension frame 22, so that the illustration of the drawings is not limited; when the second puncture needle 80 is provided, the second puncture needle 80 is also attached to the suspension plate 23.

As shown in fig. 1 to 2 and 4 to 6, the direct pricking mechanism 100 of the present invention further includes a screw 93 rotatably mounted on the mechanism frame 10 and a nut 94 slidably sleeved on the screw 93, the screw 93 is disposed in a direction parallel to the first direction, the sliding frame 20 is fixedly connected with the nut 94, and the sliding driver 30 drives the screw 93 to rotate; therefore, during the rotation of the screw 93, the nut 94 is driven to slide along the first direction together with the sliding frame 20. Specifically, in fig. 1, 2, 4, 5 and 6, the sliding driver 30 is a motor, and the motor is directly assembled and connected with the screw rod 93, and of course, the motor may drive the screw rod 93 to rotate through belt transmission, chain transmission, gear transmission or the like according to actual needs, so that the invention is not limited to the embodiment shown in the drawings.

Compared with the prior art, by means of the elastic element 70, the guide element 60, and the positioning slot 52 and the first guide hole 51 of the first plate 50, in the process that the sliding driver 30 drives the sliding frame body 20 to perform the penetrating and sliding movement along the first direction together with the first puncture needle 40, the first plate 50 is firstly contacted with the carrier 200 for carrying the soldered PCB and the connecting wire 210, as shown in fig. 5; then, the first board 50 pushes the carrier 200 (i.e. the carrier 200 is still) to overcome the elastic force of the elastic element 70, so that the first needle 40 passes through the first guiding hole 51 and then enters the positioning groove 52, and since the positioning groove 52 positions and constrains the free end of the connecting wire 210 among the PCB and the connecting wire 210 welded together, which is carried by the carrier 200 when the first board 50 contacts the carrier 200, the free end of the connecting wire 210 entering the positioning groove 52 cannot be bent and warped randomly due to the positioning constraint, as shown in fig. 5, the first needle 40 entering the positioning groove 52 and guided by the first guiding hole 51 can directly penetrate into the free end of the connecting wire 210 positioned and constrained by the positioning groove 52, as shown in fig. 6, thereby ensuring impedance consistency and improving success rate.

It should be noted that although fig. 4 to 6 show the carrier 200 having the groove 220 for positioning and restraining the free end of the connecting wire 210 from below, the groove 220 only restrains the portion of the free end of the connecting wire 210 adjacent to the PCB, and the portion of the free end of the connecting wire 210 away from the PCB is located outside the groove 220, because the portion of the free end of the connecting wire 210 away from the PCB is not sucked by the robot when the robot transfers to the carrier 200 because the connecting wire 210 is clamped by the automatic wire feeding device, and is located outside the groove 220 after transferring to the carrier 200, so that the restraining from above needs to be performed by the positioning groove 52.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

Claims

1. A direct pricking mechanism comprises a mechanism frame body, a sliding frame body arranged on the mechanism frame body in a sliding mode, a sliding driver assembled on the mechanism frame body, and a first pricking needle assembled on the sliding frame body, wherein the sliding driver drives the sliding frame body and the first pricking needle to perform penetrating sliding along a first direction or perform withdrawing sliding along a second direction opposite to the first direction, the first pricking needle further extends out of the sliding frame body along the first direction, the direct pricking mechanism is characterized by further comprising a first plate body, a guide piece and an elastic piece, the first plate body is located right ahead of the first pricking needle along the first direction, a first guide hole aligned with the first pricking needle and a positioning groove communicated with the first guide hole are formed in the first plate body, and the first guide hole penetrates through the first plate body along the first direction, the constant head tank is located the front side department of first plate body, the constant head tank is still followed respectively first direction and the direction that is on a parallel with the third direction are to run through and arrange, the third direction with first direction is perpendicular to each other, guide and elastic component respectively with constant head tank and first guiding hole stagger mutually, the guide along being on a parallel with first direction is worn to arrange in first plate body and sliding frame body, the elastic component is located first plate body with between the sliding frame body, the elastic component has constantly orders about first plate body is followed the first direction is relative sliding frame body slides so that first prick the needle roll-off the trend of constant head tank.

2. The direct pricking mechanism according to claim 1, wherein the front side of the first plate is provided with a protrusion structure protruding forward in the first direction, the positioning groove is formed in the protrusion structure, and the positioning groove penetrates through the protrusion structure in the first direction and a direction parallel to a third direction, respectively.

3. The direct pricking mechanism according to claim 2, wherein the first pricking pins are plural and arranged in a row at intervals in a fourth direction perpendicular to the first direction, each of the first pricking pins corresponds to one of the positioning grooves and one of the first guide holes, and the first direction, the third direction and the fourth direction together constitute three-dimensional coordinates of XYZ axes.

4. The direct pricking mechanism according to claim 3, wherein the projection arrangement is provided in a plurality and spaced apart in a row along the fourth direction, and wherein two of the positioning grooves are provided on each projection arrangement.

5. The direct pricking mechanism according to claim 2, further comprising second pricking pins mounted on the sliding frame and extending forward from the sliding frame along the first direction, wherein the second pricking pins and the first pricking pins are equal in number, each of the second pricking pins is aligned with a corresponding one of the first pricking pins along the third direction, the first plate further defines a second guiding hole aligned with the second pricking pin, and the second guiding hole penetrates through the first plate along a direction parallel to the first direction.

6. The direct pricking mechanism of claim 3, further comprising first and second alignment pins mounted to the first plate and spaced apart from each other along the fourth direction, the first and second alignment pins each projecting forwardly of the first plate along the first direction, the projection arrangement being located between the first and second alignment pins along the fourth direction.

7. The direct pricking mechanism of claim 1, wherein the sliding frame comprises a sliding frame slidably connected to the mechanism frame, a suspension frame mounted on the sliding frame, and a suspension plate located directly in front of the suspension frame along the first direction, the suspension plate is mounted on the suspension frame, the first pricking pin is mounted on the suspension plate, the first plate is located directly in front of the suspension plate along the first direction, the elastic member is disposed between the suspension plate and the first plate, and the guide member penetrates through the suspension plate and the first plate.

8. The direct pricking mechanism of claim 7, wherein the sliding carriage further comprises an intermediate connecting rod connected between the suspension carriage and the suspension plate and arranged in the first direction, the guide being located alongside the intermediate connecting rod.

9. The direct pricking mechanism according to claim 7, wherein the suspension bracket and the sliding attachment bracket together enclose an "L" shape, the sliding attachment bracket being stacked on top of each other along the third direction with the mechanism frame body.

10. The direct pricking mechanism according to claim 1, further comprising a lead screw rotatably mounted to the mechanism frame and a nut slidably fitted to the lead screw, the lead screw being arranged in a direction parallel to the first direction, the sliding frame being fixedly connected to the nut, the lead screw being driven to rotate by the sliding driver.