CN219935945U - Probe, connection structure and detection system - Google Patents

Abstract

The utility model provides a probe, a connecting structure and a detection system. The needle body can include syringe needle and main part, and the syringe needle can set up in the one end of main part, and the syringe needle is used for contacting with the work piece that awaits measuring, and the main part is equipped with the constant head tank. The needle sleeve is provided with a first through hole corresponding to the positioning groove of the main body. A retainer may be used to pass through the first through hole and the retainer slot for limiting axial rotation of the needle. The technical scheme of the utility model can solve the problem that the probe is easy to rotate in the process of pressing down the workpiece in the prior art, and improves the detection precision.

Description

Probe, connection structure and detection system

Technical Field

The utility model relates to the technical field of automatic detection, in particular to a probe, a connecting structure and a detection system.

Background

When detecting the functions of the mobile phone, a probe is usually used to contact the element pins in the mobile phone motherboard to realize the detection of the functions of the mobile phone.

The connecting structure generally includes an upper needle hub for securing the tail portion of the needle body and a lower needle hub for securing the tip portion of the needle body. In the above-mentioned probe structure, if concentricity between the upper needle sleeve and the lower needle sleeve is not high, a phenomenon of jamming is likely to occur. In addition, because a gap exists between the upper needle sleeve and the lower needle sleeve, the probe is easy to rotate in the pressing process, so that the inner diameter is worn and the gap is increased, and the detection precision is affected.

Disclosure of Invention

In view of the foregoing, it would be desirable to provide a probe, a connection structure, and a detection system. The utility model can solve the problem that the probe is easy to rotate in the process of pressing down the workpiece in the prior art, and further improves the detection precision.

A first aspect of the present utility model provides a probe comprising a needle body, a needle hub, and a positioning member, the needle body being mounted within the needle hub. The needle body comprises a needle head and a main body, wherein the needle head is arranged at one end of the main body, the needle head is used for being contacted with a workpiece to be detected, and the main body is provided with a positioning groove. The needle sleeve is provided with a first through hole corresponding to the positioning groove of the main body. The positioning piece is used for penetrating the first through hole and the positioning groove and limiting the axial rotation of the needle head.

As an alternative, the needle sleeve may include a body and a sleeve head, the sleeve head is disposed at one end of the body, the body is provided with a first accommodating groove, the sleeve head is provided with a second accommodating groove, the first accommodating groove is communicated with the second accommodating groove, at least a part of the main body is accommodated in the first accommodating groove, and at least a part of the needle head is accommodated in the second accommodating groove.

As an alternative, the probe further comprises a locking member which is in threaded engagement with the first receiving recess.

As an alternative, one end of the main body, which is far away from the needle head, is provided with a first step part, the locking piece comprises a thread part, an elastic piece is arranged between the thread part and the first step part, and the elastic piece is used for pressing the needle head on the workpiece to be tested.

As an alternative, the locking member further comprises a connecting portion, the threaded portion is arranged on the connecting portion, the first step portion is arranged between the main body and the second step portion, one end of the elastic member is sleeved on the second step portion and abuts against the first step portion, and the other end of the elastic member is sleeved on one end of the connecting portion and abuts against the threaded portion.

As an alternative, the probe further comprises a cushion block, the locking piece further comprises a locking part, the locking part is arranged at one end of the connecting part far away from the elastic piece, the cushion block is sleeved on the connecting part, and the cushion block is located between the locking part and the body.

The second aspect of the utility model also provides a connection structure comprising a connector, a mounting member and a probe as described above, wherein the probe is mounted on the connector and the connector is mounted on the mounting member.

As an alternative, the connector is made of fiberglass material.

As an alternative, the connecting piece comprises a first connecting section, a second connecting section and a third connecting section, wherein the first connecting section and the third connecting section are respectively arranged at two ends of the second connecting section, the first connecting section and the third connecting section are arranged in parallel, the first connecting section is connected with the body of the needle sleeve, and the third connecting section is connected with the mounting piece.

The third aspect of the utility model also provides a detection system for detecting a workpiece to be detected, which comprises an upper computer, a driving module and the connecting structure. The driving module is used for driving the connecting structure to move along a first direction according to the control instruction of the upper computer so that the needle head of the probe is contacted with the workpiece to be tested; the upper computer is used for being electrically connected with the probe and detecting the workpiece to be detected when the needle head is contacted with the workpiece to be detected.

The probe, the connecting structure and the detecting system can solve the problem that the probe is blocked due to low concentricity of the upper needle sleeve and the lower needle sleeve in the prior art. According to the utility model, the locating piece is arranged in the locating groove of the needle body, so that the needle head of the needle body cannot rotate, the detection precision is further improved, and the automatic detection of the workpiece is realized.

Drawings

Fig. 1 is a schematic diagram of a detection system according to an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a detection system according to an embodiment of the present utility model.

Fig. 3 is a schematic exploded view of the detection system of fig. 2.

Fig. 4 is a schematic exploded view of the connection structure of fig. 2.

Fig. 5 is a schematic exploded view of the connection structure of fig. 2 from another perspective.

Fig. 6 is a schematic structural view of a needle according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of a needle sheath according to an embodiment of the present utility model.

Fig. 8 is another schematic view of a needle sheath according to an embodiment of the present utility model.

Fig. 9 is a schematic structural view of a locking member according to an embodiment of the present utility model.

Fig. 10 is another schematic structural view of a locking member according to an embodiment of the present utility model.

Fig. 11 is a cross-sectional view taken along line XI-XI in fig. 3.

Description of the main reference signs

Detection System 1000

Connection structure 100

Probe 10

Needle body 12

Body 121

Needle 122

Abutment 123

First step 124

Second step 125

Positioning groove 126

Needle sheath 14

Body 141

Sleeve head 142

Storage groove 143, 144

Annular groove 145

Through holes 146, 147, 32

Locking member 16

Locking portion 161

Connection portion 162

Screw part 163

Receiving hole 164

Fixing holes 165, 24

Connector 20

First connecting section 21

Second connecting section 22

Third connecting section 23

Fastening elements 25, 34

Mounting member 30

Elastic member 40

Cushion block 50

Locating piece 60

Nail body 601

Positioning portion 602

Mounting module 200

Mounting plates 201, 202

Fixing plate 203

Slide rail assembly 300

Fixed rail 301

Movable rail 302

Linear motor 400

Driving module 500

Limiting blocks 501, 502

Workpiece 700

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In the embodiments of the present utility model, the terms "first," "second," and the like are used merely for distinguishing between different objects, and are not to be construed as indicating or implying a relative importance or order. For example, a first application, a second application, etc. are intended to distinguish between different applications, rather than to describe a particular order of application, and features defining "first", "second", etc. may explicitly or implicitly include one or more such features.

Referring to fig. 1, a schematic diagram of a detection system 1000 according to an embodiment of the utility model is provided. As shown in fig. 1, the inspection system 1000 is used to inspect a workpiece 700. The detection system 1000 may include a host computer 600 and a connection structure 100. The upper computer 600 may be electrically connected to the connection structure 100 through the communication cable 800. The upper computer 600 is electrically connected to the work 700 through the connection structure 100. It will be appreciated that the connection structure 100 may include a probe 10 (see fig. 4). The upper computer 600 may be electrically connected to the probe 10 through the communication cable 800, and the probe 10 may be in contact with the workpiece 700, so that the upper computer 600 may detect the workpiece 700, thereby acquiring detection data of the workpiece 700.

With continued reference to fig. 2 and 3, a schematic diagram of a detection system 1000 according to an embodiment of the utility model is provided.

It is understood that the detection system 1000 in this embodiment may further include a driving module 500. The driving module 500 may be used to drive the connection structure 100 to move in the first direction. Wherein the first direction may be a Z-axis direction as shown in fig. 2.

It is understood that in the present embodiment, the driving module 500 may include the mounting module 200, the sliding rail assembly 300 and the linear motor 400.

The mounting module 200 may include a mounting plate 201, a mounting plate 202, and a fixing plate 203. Wherein a mounting plate 201 is provided on a first surface of said mounting plate 202. The connection structure 100 may be mounted on a surface of the mounting plate 201 remote from the mounting plate 202.

The slide rail assembly 300 may include a fixed rail 301 and a movable rail 302 that is slidable relative to the fixed rail 301. It will be appreciated that the present embodiment is illustrated with two movable rails 302.

The fixed rail 301 may be fixed to the fixed plate 203. Two movable rails 302 are mounted on a second surface of the mounting plate 202 remote from the mounting plate 201.

A linear motor 400 may be mounted on the fixed plate 203, and the linear motor 400 may be used to control the movement of the probe 10 in the Z-axis direction. For example, the linear motor 400 may be used to drive the two movable rails 302 to slide relative to the fixed rail 301, so as to drive the mounting plate 202, the mounting plate 201, and the connection structure 100 to move along the Z-axis direction.

It can be appreciated that in this embodiment, the two opposite ends of the fixed rail 301 are respectively provided with a limiting block 501 and a limiting block 502. Both the stopper 501 and the stopper 502 are mounted on the fixed plate 203. The limiting block 501 and the limiting block 502 may be used to limit the movement of the movable rail 302 in the Z-axis direction, so as to avoid the movable rail 302 from falling off the fixed rail 301.

It will be appreciated that in some embodiments, the detection system 1000 may further include a gantry structure (not shown). The fixing plate 203 may be fixed to the gantry structure. In other words, the upper computer 600 may issue a control command to the gantry structure to control the gantry structure to drive the connection structure 100 to move in the X/Y axis direction.

In an application scenario, when the connection structure 100 moves to a preset position in the X/Y axis direction, the upper computer 600 may issue a control command to the linear motor 400 to control the connection structure 100 to move in the Z axis direction. For example, linear motor 400 may control the lowering of the tip of probe 10 in the Z-axis direction so that the tip of probe 10 may contact the pins of workpiece 700. At this time, the upper computer 600 may acquire the detection data of the work 700 through the probe 10, thereby completing the automated detection of the work 700.

Referring to fig. 4 and fig. 5, a schematic structural diagram of a connection structure 100 according to an embodiment of the utility model is shown. As shown in fig. 4 and 5, the connection structure 100 in the embodiment of the present utility model may include a probe 10, a connection member 20, and a mounting member 30.

It will be appreciated that in this embodiment, the probe 10 may include a needle body 12 and a needle hub 14. The needle body 12 may be mounted within the needle hub 14. In other words, the needle hub 14 may be a fixed end for securing the needle body 12.

The needle hub 14 may also be provided with a through hole 147. The needle hub 14 may be connected to the connector 20 by a through hole 147.

The connector 20 may include a first connection section 21, a second connection section 22, and a third connection section 23.

The second connecting section 22 may be fixedly connected between the first connecting section 21 and said third connecting section 23. It will be appreciated that as an alternative implementation, the first connection section 21 and the third connection section 23 may be arranged in parallel.

The first connecting section 21 may be provided with fixing holes 24 corresponding to the through holes 147 of the needle hub 14. The connection structure 100 may also include fasteners 25. The fastener 25 may be tightened into the fixing hole 24 through the through hole 147 so that the needle hub 14 and the coupling member 20 may be coupled together. Alternatively, the fastener 25 may be a screw, and the fixing hole 24 may be a screw hole.

The third connecting section 23 may be provided with a fixing hole 26. The connection member 20 may be connected with the mounting member 30 through the fixing hole 26.

The mounting member 30 may be provided with a through hole 32 corresponding to the fixing hole 26. The connection structure 100 may also include fasteners 34. The fastener 34 may be secured through the through hole 32 in the fixing hole 26 so that the mounting member 30 may be coupled with the connection member 20. The mounting member 30 may be mounted on the mounting plate 201. Alternatively, the fastener 34 may be a screw, and the fixing hole 26 may be a screw hole.

In some possible embodiments, probe 10 can further include retaining member 16. The locking member 16 may be threadably coupled to the needle hub 14. Alternatively, retaining member 16 may be a bolt.

As shown in fig. 6, the needle body 12 may include a main body 121 and a needle 122, the needle 122 being disposed at one end of the main body 121. The needle 122 has a needle tip shape. The free end of the needle 122 (i.e., the tip of the needle 122) may serve as a contact point with the workpiece. The body 121 may be provided with a positioning groove 126.

The other end of the body 121 is provided with a holding member 123. In a specific implementation, the abutment 123 may include a first step 124 and a second step 125. The first step 124 is fixedly coupled to one end of the body 121, and the second step 125 is fixedly coupled to the first step 124. The first step 124 is located between the second step 125 and the body 121.

In one possible implementation, both the first step 124 and the second step 125 may be generally cylindrical. The diameter of the first step 124 may be greater than the diameter of the second step 125. In embodiments of the present utility model, needle 122 may be collinear with the central axis of body 121.

Referring to fig. 7 and 8, the needle hub 14 may include a body 141 and a hub 142. The sleeve 142 is fixedly connected to one end of the body 141.

The sleeve 142 may be provided with a receiving slot 143 and the body 141 may be provided with a receiving slot 144. It will be appreciated that the receiving slot 143 communicates with the receiving slot 144. In one scenario, needle 122 of needle body 12 may pass through receiving slot 144 and receiving slot 143 in sequence such that at least a portion of needle 122 may leak out of hub 142. In this way, the tip portion of the needle 122 may be in contact with the pin of the workpiece.

In a more specific implementation, an annular groove 145 is provided at an end of the body 141 remote from the sleeve 142, and the first step portion 124 may be received in the annular groove 145.

It can be appreciated that the needle sleeve 14 of the present utility model is an integrated structure, which can improve the overall concentricity, and the probe will not be stuck, so as to further improve the detection accuracy.

Referring to fig. 9 and 10 together, in some possible implementations, retaining member 16 may include a retaining portion 161 and a connecting portion 162. One end of the connecting portion 162 is fixedly connected to the locking portion 161. The connecting portion 162 may be provided with a screw portion 163, and the screw portion 163 is an external screw. The body 141 may have a threaded portion (not shown) that mates with the threaded portion 163, i.e., the receiving slot 144 may have internal threads. Thus, the connecting portion 162 can be rotated into the receiving groove 144 of the body 141, and the screw portion 163 on the connecting portion 162 is engaged with the screw portion in the body 141, thereby screwing the connecting portion 162 to the needle hub 14.

The top of the locking part 161 is provided with a receiving hole 164, and the side surface of the locking part 161 is provided with a fixing hole 165. The fixing hole 165 may communicate with the receiving hole 164. In some embodiments, one end of the communication cable 800 is electrically connected to the upper computer 600, and the other end of the communication cable 800 is provided with a connection terminal, and the connection terminal can be inserted into the receiving hole 164 and locked into the fixing hole 165 by a fastener, and the fastener can lock the connection terminal of the communication cable 800 in the receiving hole 164. In this way, the connection terminal is in contact with the locking portion 161, and the probe 10 is made of a conductive material such as metal. Accordingly, the upper computer 600 may be electrically connected to the probe 10 through the communication cable 800 to obtain the detection data of the work 700.

Referring again to fig. 4 and 5, probe 10 may further include a resilient member 40. Alternatively, the elastic member 40 may be a spring.

The elastic member 40 may serve to buffer the impact force of the probe 10 on the workpiece. Specifically, the elastic member 40 may be accommodated in the accommodating groove 144 of the body 141, and the first end of the elastic member 40 may be sleeved on the second step portion 125, and the second end of the elastic member 40 may be sleeved on the end of the connecting portion 162 away from the locking portion 161. I.e. the elastic member 40 may be located between the threaded portion 163 and the first stepped portion 124. In other words, both ends of the elastic member 40 may be respectively abutted against the bottom of the screw part 163 and the first stepped part 124. It will be appreciated that retaining member 16 is threadably coupled to needle hub 14, and that as retaining member 16 is rotated relative to needle hub 14, retaining member 16 may be tightened against needle hub 14 and the bottom of threaded portion 163 will bear against resilient member 40 such that resilient member 40 is compressed to create a resilient force. Thus, the present utility model can control the spring force of spring 40 against probe 10 by controlling the degree of tightening of retaining member 16 relative to needle hub 14, and thus the force of probe 10 against workpiece 700.

The probe 10 may further include a spacer 50 and a retainer 60. Wherein the positioning member 60 may be a positioning pin. The pad 50 may be sleeved on one end of the connection portion 162 near the locking portion 161. It will be appreciated that the spacer 50 of this embodiment may allow the locking member 16 to be locked to the needle hub 14.

The body 141 may be provided with a through hole 146. Wherein the through hole 146 may penetrate through opposite sides of the body 141.

The through hole 146 may correspond to the positioning groove 126 of the body 121. The retainer 60 may be used to limit axial rotation of the needle 122. In a specific implementation, the positioning member 60 can include a pin 601 and a positioning portion 602. One end of the pin body 601 is fixedly connected with the positioning portion 602, and the other end of the pin body 601 can pass through the through hole 146 and the positioning groove 126, so that the positioning portion 602 abuts against the side surface of the needle sleeve 14, thereby fixing the needle body 12, and preventing the needle 122 of the needle body 12 from rotating axially.

It will be appreciated that in some embodiments, the connector 20 may be made of fiberglass material. Based on such a design, the connection member 20 is broken when the coupling structure 100 is subjected to a severe collision, so that damage to the components such as the linear motor 400 can be prevented, and other components of the detection system 1000 can be protected when the severe collision occurs.

Referring to fig. 11, when the locking portion 161 is rotated by an external force, the bottom portion of the threaded portion 163 will abut against the elastic member 40, and the elastic member 40 is compressed by a certain length under the action of the threaded portion 163, so that the elastic member 40 is elastically deformed to generate an elastic force, and the elastic force generated by the elastic member 40 abuts against the first step portion 124 of the needle body 12, so that the pressure of the needle 122 pressing down onto the workpiece can be controlled, the acting force to the surface of the workpiece is ensured to be within a preset range, the stability of workpiece detection is ensured, and meanwhile, damage to the needle 122 due to rigid connection can be avoided. When the upper computer 600 controls the probe 10 to move to the corresponding position of the workpiece 700, the upper computer 600 may issue a control command to the linear motor 400 to control the connection structure 100 to move in the Z-axis direction. The linear motor 400 may control the needle of the probe 10 to descend in the Z-axis direction so that the needle of the probe 10 may contact the pin of the workpiece 700, and the elastic member 40 may buffer the impact force of the linear motor 400 and the probe 10 to the workpiece 700. Next, the upper computer 600 may acquire the inspection data of the workpiece 700 through the probe 10, thereby completing the automated inspection of the workpiece 700.

After the upper computer 600 reads the detected data of the workpiece 700, the upper computer 600 may send a control command to the linear motor 400, so that the linear motor 400 controls the needle of the probe 10 to rise along the Z-axis direction, so as to control the probe 10 to pop up from the pin of the workpiece 700.

The connecting structure and the detecting system can solve the problem that the probe is blocked due to the fact that the concentricity of the upper needle sleeve and the lower needle sleeve is not high in the prior art. The connecting structure is arranged in the positioning groove of the needle body through the positioning piece, so that the needle head of the needle body cannot rotate, the detection precision is further improved, and the automatic detection of the workpiece is realized.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Therefore, appropriate modifications and variations of the above embodiments should be included within the scope of the utility model as hereinafter claimed.

Claims (10)

1. A probe, characterized in that the probe comprises a needle body, a needle sleeve and a positioning piece, wherein the needle body is arranged in the needle sleeve;

the needle body comprises a needle head and a main body, the needle head is arranged at one end of the main body, the needle head is used for contacting with a workpiece to be detected, and the main body is provided with a positioning groove;

the needle sleeve is provided with a first through hole corresponding to the positioning groove of the main body;

the positioning piece is used for penetrating the first through hole and the positioning groove so as to limit the axial rotation of the needle.

2. The probe of claim 1, wherein the probe comprises a probe body,

the needle sleeve comprises a body and a sleeve head, wherein the sleeve head is arranged at one end of the body, the body is provided with a first accommodating groove, the sleeve head is provided with a second accommodating groove, the first accommodating groove is communicated with the second accommodating groove, at least one part of the main body is accommodated in the first accommodating groove, and at least one part of the needle head is accommodated in the second accommodating groove.

3. The probe according to claim 2, wherein,

the probe further comprises a locking piece, and the locking piece is matched with the first accommodating groove through threads.

4. The probe according to claim 3, wherein,

the main part is kept away from the one end of syringe needle is equipped with first step portion, the retaining member includes screw thread portion, screw thread portion with be equipped with the elastic component between the first step portion, the elastic component is used for with the syringe needle compresses tightly on the work piece that awaits measuring.

5. The probe according to claim 4, wherein,

the locking piece further comprises a connecting portion, the threaded portion is arranged on the connecting portion, the first step portion is arranged between the main body and the second step portion, one end of the elastic piece is sleeved on the second step portion and abuts against the first step portion, and the other end of the elastic piece is sleeved on one end of the connecting portion and abuts against the threaded portion.

6. The probe according to claim 5, wherein,

the probe also comprises a cushion block, the locking piece also comprises a locking part, the locking part is arranged at one end of the connecting part, which is far away from the elastic piece, the cushion block is sleeved on the connecting part, and the cushion block is positioned between the locking part and the body.

7. A connection structure comprising a connector, a mounting member and a probe according to any one of claims 1 to 6, wherein the probe is mounted on the connector and the connector is mounted on the mounting member.

8. The connection structure according to claim 7, wherein,

the connecting piece is made of glass fiber materials.

9. The connection structure according to claim 7, wherein,

the connecting piece includes first linkage segment, second linkage segment and third linkage segment, first linkage segment with the third linkage segment sets up respectively the both ends of second linkage segment, first linkage segment with third linkage segment parallel arrangement, first linkage segment with the body of needle cover links to each other, the third linkage segment with the installed part links to each other.

10. A detection system for detecting a workpiece to be detected, wherein the detection system comprises an upper computer, a driving module and the connecting structure as claimed in claim 7;

the driving module is used for driving the connecting structure to move along a first direction according to a control instruction of the upper computer so that the needle head of the probe is contacted with the workpiece to be tested;

the upper computer is used for being electrically connected with the probe and detecting the workpiece to be detected when the needle head is contacted with the workpiece to be detected.