TWI681194B - Supplementary shaft sleeve, detection needle and supplementary detection device - Google Patents

Abstract

The invention provides a supplementary bushing, a detection needle and a supplementary detection device. The supplementary bushing has a closed end, an open end, an accommodating groove, and at least a first fixed portion. The closed end has a first contact portion. The accommodating groove is concavely formed from the open end to the closed end, and the first fixing portion is located on the inner surface of the accommodating groove. The detection needle is provided in the accommodating hole of one base of the supplementary detection device, and has a detection end and a connection end oppositely arranged, and the detection end has a second contact portion, a second fixed portion and One stop. When the second contact part of any detection needle is worn, the supplementary bushing is set after the detection end of the detection needle, then the first contact part can replace the second contact part to perform the detection operation, and the detection needle must be removed during maintenance The inconvenience of overall disassembly and replacement accelerates the maintenance work, and at the same time reduces the replacement cost of the detection needle.

Description

Supplementary shaft sleeve, detection needle and supplementary detection device

The invention relates to the field of electrical detection devices, in particular to a supplementary bushing, a detection pin and a supplementary type detection device that can make the height of the detection needle have the same level height and are easy to maintain.

In the current semiconductor industry, finished products, such as IC chips, are required to confirm whether their electrical performance is normal through electrical detection devices equipped with probes. During the inspection process, the probe will measure a large number of objects on different wafers. During the test, the probe will be displaced by the moving mechanism until it touches the contact of the wafer, and then returns to the original position, and the probe is in contact The friction generated at the time will cause the wear of the front end of the probe, so after multiple inspection operations, the length of the probe will be reduced due to wear, and eventually the length will be insufficient to touch the chip contacts, making this probe card Loss of detection efficiency.

When the aforementioned situation occurs, only worn probes of insufficient length can only be replaced, but the probe size is quite small and the structure is complicated, and the distance between the needle and the needle is also very close, so the probe is disassembled and the needle is replaced The reorganization operation requires a lot of time, which hinders the maintenance operation and greatly reduces the detection speed. In addition, the wear of the probe due to the detection of friction is often the only part of the probe that is in contact with the object to be measured, and the rest can still function normally. However, the entire probe must be removed and a new probe must be assembled for replacement. Therefore, the maintenance cost of the detection device will increase accordingly.

In view of this, the present inventors conceived a supplementary bushing, a detection needle and a supplementary detection device to solve the high maintenance cost and time required for the current electrical testing operation, providing a more easy-to-use and high-maintenance speed Detection device.

An object of the present invention is to provide a supplementary bushing, a detection needle and a supplementary detection device, which can make the maintenance operation of the electrical detection device easier, and can avoid wasteful structures that can still be used, effectively improving maintenance Efficiency and reduction of time required.

In order to achieve the above object, the present invention discloses in one embodiment a supplementary shaft sleeve, which is sleeved on a detection needle and includes: a closed end with a first contact portion for contacting with an object to form a conduction; An open end opposite to the closed end; an accommodating groove formed by recessing the open end toward the closed end; and at least a first fixed portion provided on the inner surface of the accommodating groove, wherein the supplement The shaft sleeve is sleeved on one of the detection ends of the detection needle from the open end, and the first fixing part and the at least one second fixing part of the detection end are mutually arranged, so that the detection end is located in the container Place in the slot. In this way, a replacement method can be set to ensure the accuracy of the detection needle in electrical detection.

In another embodiment, the present invention discloses a detection needle, which is provided in a receiving hole of a base and can be mutually assembled with the supplementary bushing as described above, the detection needle has a detection And a connecting end, the connecting end is for electrical connection with a testing machine, the detecting end is disposed opposite to the connecting end, and is characterized in that the detecting end further has a second contact portion, at least a second fixed portion and A stop portion, the second contact portion is located at the end of the detection end, the second fixing portion is located at the outer surface of the detection end, the stop portion is located at one end of the second fixing portion, and the second The fixed portion is provided corresponding to the first fixed portion, whereby the detection end and the supplementary bushing are assembled with each other through the first fixed portion and the second fixed portion, and by the blocking portion Form stop positioning. Through the structural arrangement of the detection end, when the second contact portion of the detection needle is worn, the supplementary bushing is arranged on the detection end, so that the detection needle can continue through the first contact portion for detection operation.

In yet another embodiment, the present invention discloses a supplementary detection device for electrical or signal detection of an object to be tested, including: a base with a plurality of receiving holes; a plurality of detection needles for setting In the accommodating holes, each of the detection pins has a detection end and a connection end disposed oppositely, the connection end is for electrical connection with a detection machine, the detection end protrudes outside the accommodation hole and has a A second contact portion, at least one second fixed portion and a stop portion, the second contact portion is located at the end of the detection end, the second fixed portion is located on the outer surface of the detection end, the stop portion is located One end of the second fixing portion, wherein the detection end of each detection needle protrudes a predetermined length outside the accommodating hole, and the stop portions of the detection needles on the base are at the same horizontal height ; And at least one supplementary bushing, which has a closed end and an open end oppositely provided, and a recess is formed inwardly from the open end, and an inner surface of the receptacle is provided with at least a first fixed connection The closed end is provided with a first contact portion; wherein, when the second contact portion of any of the detection pins is worn out, the supplementary bushing penetrates through the first fixed portion and the second fixed portion Assemble with each other until they stop against the stop portion to stop positioning, thereby the length of the detection end of the detection needle protruding outside the accommodating hole is restored to the predetermined length. When servicing the detection device, if the second contact portion of the detection needle is worn due to detection, it is only necessary to set the supplementary bushing at the detection end, that is, the first contact portion can replace the second contact The inspection work is continued, in addition to greatly improving the maintenance speed, it can also avoid the problems of wasting parts and inconvenience of operations caused by disassembling the detection needle as a whole.

Based on the foregoing embodiments, further, the first fixing portion may be a concave or convex thread structure wound along the inner surface of the accommodating groove, and the second fixing portion corresponds to the first fixing portion In order to wrap a convex or concave thread structure along the outer surface of the detection end, the detection needle and the supplementary shaft sleeve are screwed together.

In addition, preferably, the number of thread sets of the first fixed portion is greater than the number of thread sets of the second fixed portion, so that when the inner surface of the accommodating groove except the area corresponding to the first contact portion is When the first fixed portion and the outer surface of the detection end are the second fixed portion except for the area corresponding to the stop portion and the second contact portion, ensure that the supplementary bushing can be screwed to the stop部位置。 Department location. Further, in order to detect the object under test, the insulating layer of the object under test can be pierced to form a conduction, the first contact portion and the second contact portion have at least one point structure, and the first contact portion The height of the sharp point structure is smaller than the height of the sharp point structure of the second contact portion. In addition, the extension length of the second fixing portion may be less than the length of the detection needle reaching the maximum stroke, and the detection end protrudes beyond the length of the accommodating hole to avoid the situation that the detection needle cannot be returned or stuck.

Preferably, in addition to the aforementioned screw connection method, the first fixing portion can also be an elastic sheet body with a V-shaped bending structure, and a stop portion is provided at one end of the second fixing portion, and The second fixing portion is a sliding groove, and the blocking portion protrudes from the surface of the detection end and has at least one catching groove. When the supplementary sleeve is sleeved on the detection end, the first fixing portion is along the The second fixing portion moves until the bent portion of the first fixing portion is locked in the locking groove.

Or as described in one embodiment, the first fixing part has a first magnetic part, the second fixing part has a second magnetic part, when the first fixing part and the second fixing part When the first magnetic element is close to or in contact with the second magnetic element, the first magnetic element has a first polarity, and the second magnetic element has the opposite polarity to the first polarity The second polarity, so that the first magnetic member and the second magnetic member form a different-pole attraction state, wherein the magnetic attraction force of the first magnetic member and the second magnetic member magnetically attracts It is greater than the gravity of the supplementary shaft sleeve, so as to achieve the effect of making the supplementary shaft sleeve permanently positioned and not loose. Further, the first fixing portion is a sliding groove and has the first magnetic member, and one end of the second fixing portion is provided with a stop portion, the stop portion is a convex rib, and the stop portion Protruding from the detection end surface, the The second fixing portion is a convex block. When the supplementary sleeve is sleeved on the detection end, the second fixing portion moves along the first fixing portion and passes through the first magnetic member and the second The magnetic members attract and fix each other.

In summary, the supplementary shaft sleeve, the detection needle and the supplementary detection device disclosed in the present invention are skipped the previous maintenance steps for the detection device, so as to avoid the inconvenience of disassembling and damaging the needle body. The concept of the part touching the object to be tested eliminates the need to spend a lot of time in the maintenance operation, and also avoids the waste caused by discarding the detection needle with only the second contact part damaged. In particular, most of the test needles used for electrical testing are of a micro-structure. In the past, the needle replacement operation is not only to remove the entire test needle and replace it with a new test needle. Disassembling the entire test needle and then taking out the components one by one, and then placing the new test needle components one by one into the receiving hole . According to this, the supplementary bushing provided by the present invention can effectively solve the aforementioned many inconveniences, and a simple assembly step can be used to continue the use of the worn detection needle. For the part of the detection needle that is not damaged It can also be retained. When the supplementary bushing is worn out, the old supplementary bushing can be withdrawn manually and mechanically assisted and a new supplementary bushing can be assembled to allow the detection needle to continue to be used.

1‧‧‧Supply shaft sleeve

10‧‧‧Closed end

101‧‧‧ First Contact Department

1011‧‧‧Pointed structure

11‧‧‧Open

12‧‧‧Accommodation slot

13‧‧‧First fixed part

131‧‧‧V-shaped bending structure

132‧‧‧First magnetic part

2‧‧‧Detection needle

20‧‧‧Detector

201‧‧‧Second Contact Department

2011‧‧‧Pointed structure

202‧‧‧Second fixing part

2021‧‧‧Second magnetic part

203‧‧‧stop

2031‧‧‧Card slot

21‧‧‧Connector

3‧‧‧ Supplementary detection device

30‧‧‧Dock

301‧‧‧accommodation hole

X‧‧‧ predetermined length

Figure 1 is a schematic diagram (1) of a supplementary detection device according to a preferred embodiment of the present invention.

Figure 2 is a schematic diagram (2) of a supplementary detection device according to a preferred embodiment of the present invention.

Figure 3 is a schematic diagram of the supplementary bushing and detection needle of the preferred embodiment of the present invention.

Fig. 4 is a schematic diagram of a supplementary bushing and a detection pin according to another embodiment of the preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of a supplementary bushing and a detection pin according to another embodiment of the preferred embodiment of the present invention.

In order for your reviewing committee to clearly understand the content of the present invention, please refer to the following description and accompanying drawings.

Please refer to Figures 1~5, which are schematic diagrams of a supplementary detection device (1), a schematic diagram of a supplementary detection device (2), a schematic diagram of a supplementary bushing and a detection needle, and another implementation form. The schematic diagram of the supplementary bushing and the detection needle and the schematic diagram of the supplementary bushing and the detection needle in another embodiment. In order to solve the problem of probe wear due to electrical detection, the present inventors designed and conceived a motive that can quickly replace damaged parts without too many unnecessary disassembly and replacement actions in maintenance operations. To solve the problems and deficiencies mentioned in the prior art, a supplementary bushing 1, a correspondingly designed detection needle 2 and a supplementary detection device 3 combining the detection needle 2 and the supplementary sleeve 1 are provided. The technical characteristics of the supplementary bushing 1, the detection needle 2 and the supplementary detection device 3 are described below.

The supplementary bushing 1 includes a closed end 10, an open end 11, an accommodating groove 12, and at least a first fixed portion 13. The closed end 10 has a first contact portion 101 for contacting with a test object (not shown) to form a conduction. The open end 11 is opposite to the closed end 10, the accommodating groove 12 is recessed from the open end 11 toward the closed end 10, and the first fixing portion 13 is provided on the inner surface of the accommodating groove 12, Wherein, the supplementary sleeve 1 is sleeved on the detection end 20 of the detection needle 2 from the open end 11 and passes through the first fixing portion 13 and at least one second fixing portion 202 of the detection end 20 Set up, so that the detection end 20 is located in the accommodating groove 12. In this way, when the detection needle 2 is damaged, the replacement efficiency can be achieved through the supplementary bushing 1 without removing and replacing the entire detection needle 2, which greatly reduces the cost of product detection and maintenance. Or a derivative application may be that the supplementary bushing 1 is first sleeved before the detection needle 2 is used, thereby prolonging the service life of the detection needle 2. Preferably, the supplementary bushing 1 is a metal shell-like structure, and can be sleeved on the detection end 20 of the detection needle 2 to replace the detection end 20.

The detection pin 2 for mutual assembly with the supplementary sleeve 1 is provided in a receiving hole 301 of a base 30, and has a detection end 20 and a connecting end 21, the connecting end 21 For electrical connection with a testing machine (not shown), the testing end 20 is disposed opposite to the connecting end 21, characterized in that the testing end 20 further has a second contact portion 201 and at least a second fixed portion 202 and a blocking portion 203, the second contact portion 201 is located at the end of the detection end 20, the second fixing portion 202 is located at the outer surface of the detection end 20, the blocking portion 203 is located at the second fixing One end of the portion 202, whereby the detection end 20 and the supplementary bushing 1 are assembled with each other through the first fixing portion 13 and the second fixing portion 202, and the stop portion 203 forms a stop position . Through the second fixing portion 202, the supplementary sleeve 1 and the detection end 20 can be assembled with each other, so that when the detection needle 2 is damaged, the supplementary sleeve 1 can be repaired and replaced without having to discard the whole The detection needle 2 is supported, and the preferred length of the supplementary sleeve 1 is equal to the length from the first contact portion 201 to the stop portion 203. Preferably, the detection pin 2 can be a vertical spring-type test pin (Pogo Pin), a horizontal cantilever test pin or a micro-electromechanical (MEMs) test pin, etc., but this is already a known technique in the field, The detailed structure will not be repeated here. In addition, the stop portion 203 may be a point-like or planar structure protruding from the surface of the detection end 20, so that when the supplementary sleeve 1 is sleeved on the detection end, it can be stopped against the stop portion Positioning. Of course, the stop portion 203 can also be made into a concave structure, so that the first fixing portion is locked at the stop portion 203 to form a stop position.

Further, the supplementary detection device 3 of the present invention has a base 30, a plurality of the detection pins 2 and at least one supplementary sleeve 1 for electrical or signal detection of the object to be tested, the base 30 There are a plurality of accommodating holes 301, and the detection needles 2 are provided in the accommodating holes 301, and each of the detection needles 2 has the detection end 20 and the connection end 21 oppositely arranged as described above, and When the detecting pins 2 are disposed in the receiving holes 301, the detecting end 20 of each detecting pin 2 protrudes out of the receiving hole 301 and protrudes outside the receiving hole 301 by a predetermined length X, and the The stop portions of the detection pins 2 on the base 30 203 is located at the same level, so that the detection end 20 of any of the detection needles 2 can be kept at the same horizontal height as the detection end 20 of the other detection needles 2 after being assembled with the supplementary bushing 1. Wherein, when the second contact portion 201 of any of the detection pins 2 is worn, the supplementary sleeve 1 is assembled with the second fastening portion 202 through the first fixing portion 13 until the supplementary shaft The sleeve 1 is in opposition to the stopper 203, so that the length of the detection end 20 of the detection needle 2 protruding outside the accommodating hole 301 is restored to the predetermined length X, and the detection operation can be continued. Even if the supplementary bushing 1 is damaged later, it can be quickly disassembled and replaced with a new supplementary bushing 1 to continue the testing operation. The other structures of the testing pins 2 can be reused repeatedly, thereby reducing the time Maintenance costs. Through the supplementary bushing 1, when the supplementary detection device 3 is in use, the second contact portion 201 of any of the detection pins 2 has abrasion phenomenon, causing the detection pin 2 to protrude out of the accommodating hole 301 When the length is less than the predetermined length X, the supplementary sleeve 1 is sleeved on the detection end 20 of the detection needle 2 to replace the worn second contact portion 201, and the second contact portion 201 is used as a new The conduction point contacted by the object to be tested maintains the detection accuracy of the supplementary detection device 3.

In this embodiment, the first fixing portion 13 is a concave or convex thread structure wound along the inner surface of the accommodating groove 12, and the second fixing portion 202 corresponds to the first fixing portion 13 is a convex or concave thread structure wound around the outer surface of the detection end 20, so that the supplementary bush 1 can penetrate the first fixing portion 13 to screw with the second fixing portion 202 The fixing and unscrewing methods are mutually detachable. Specifically, the supplementary sleeve 1 can be screwed into or out of the detection end 20 manually or through mechanical assistance. That is, when the length of the detection end 20 of any of the detection needles 2 protruding from the accommodating hole 301 is less than the predetermined length X, the supplementary sleeve 1 can be moved along the The second fixed portion 202 on the surface of the detection end 20 is screwed in and fixed until it is resisted by the blocking portion 203, and the supplementary bushing 1 is screwed into a fixed length, so that the The length of the detection needle 2 and the other detection needles 2 protruding from the accommodating holes 301 are consistent with the predetermined length X. The first fixing part is used here 13 is a concave thread structure, the second fixing portion 202 is a convex thread structure, and the stop portion 203 is the thread end of the second fixing portion 202 as an example, of course, the first fixing The screw types of the connecting portion 13 and the second fixing portion 202 are mutually adjusted, and the blocking portion 203 may be a ring-shaped, arc-shaped or other convex structure protruding from the surface of the detection end 20 to achieve the positioning effect . The processing method of the first fixing portion 13 and the second fixing portion 202 may specifically adopt a semiconductor manufacturing process, a laser processing or a precision processing method, etc. When the second fixing portion 202 is a male screw structure, the external The diameter is larger than the diameter of the detection end 20. If the female thread structure is used, the outer diameter is smaller than the diameter of the detection end 20. In addition, preferably, in order to ensure that the supplementary sleeve 1 can be fixed to the position of the stop portion 203 after being set to the detection needle 2, when the inner surface of the accommodating groove 12 except the area corresponding to the first contact portion 101 The first fixed portion 13 is the first fixed portion 13 and the detection end 20 is the second fixed portion 202 except the area of the second contact portion 201 and the blocking portion 203. The number of thread sets is greater than the number of thread sets of the second fixed portion 202 to ensure that the supplementary bushing 1 can be set to the position of the stopper 203, limiting the supplementary bushing 1 to the detection needle 2 Length and location.

Further, after the detection needle 2 and the detection needle 2 are assembled with the supplementary sleeve 1, the insulation layer on the surface of the object to be tested can be pierced during the detection, so that the first contact portion 101 and the second The contact portion 201 has at least one sharp point structure 1011, 2011, and the height of the sharp point structure 1011 of the first contact portion 101 is smaller than the height of the sharp point structure 2011 of the second contact portion 201. For example, the first contact portion 101 and the second contact portion 201 each have a pointed structure 1011, 2011, or the first contact portion 101 and the second contact portion 201 have a plurality of The cusp structures 1011, 2011, and the cusp structures 1011, 2011 may be divergent outwardly, gathered inwardly, or arranged vertically upward, etc., all of which can achieve the effect of piercing the surface of the object to be measured. In addition, the height of the sharp point structure 1011 of the first contact portion 101 is smaller than the height of the sharp point structure 2011 of the second contact portion 201, which can prevent the supplementary sleeve 1 from being provided After being placed at the detection end 20, the length of the detection pin 2 of the supplementary sleeve 1 due to the thickness of the supplementary sleeve 1 protrudes from the receiving hole 301 and cannot be compared with other detection pins 2 Consistent.

In addition, the extension length of the second fixing portion 202 is less than the length of the detection needle 2 reaching the maximum stroke, the detection end 20 protrudes from the length of the accommodating hole 301, so as to avoid the detection needle 2 being affected by the detection movement Due to the influence of the second fixing portion 202, it cannot return or become stuck.

In particular, in order to increase the set position strength of the detection needle 2 and the supplementary bushing 1, the detection end 20 of the supplementary bushing 1 and the detection needle 2 can be made magnetic at the detection end 20 to allow the detection The needle 2 and the complementary sleeve 1 are not only fixed by the first fixing portion 13 and the second fixing portion 202, but also can further enhance the positioning effect by magnetic attraction. A preferred embodiment is to make the opposite sides of the supplementary bushing 1, such as the left and right sides, respectively have different magnetic poles, and the detection end 20 corresponds to the polarity setting of the supplementary bushing 1, and the two are assembled. The magnetic pole is in the opposite setting state, so that the complementary sleeve 1 and the detection pin 2 can be connected to greatly improve the positioning and fixing effect through the sucking method of different poles. Under the structure that the first fixing portion 13 and the second fixing portion 202 are correspondingly convex or concave threads, the thread structure on the supplementary sleeve 1 and the detection end 20 can be shown as a The side is N or S pole, and the other side is the opposite S or N pole. When the supplementary sleeve 1 and the detection end 20 are assembled with each other, they will form a different pole attraction state, that is, the supplementary sleeve 1 The N pole position of the sensor will correspond to the S pole position on the detection end 20, and the S pole position on the supplementary sleeve 1 will correspond to the N pole position on the detection end 20, so that the two will attract each other and eliminate the supplementary sleeve 1 The separation phenomenon that may occur after being set with the detection pin 2.

Please refer to FIG. 4, in addition to making the first fixing portion 13 and the second fixing portion 202 a screw structure, in this embodiment, it is disclosed that the first fixing portion 13 is an elastic sheet and It has a V-shaped bending structure 131, and the second fixing portion 202 is a sliding groove, and the blocking portion 203 has at least one locking groove 2031, when the supplementary sleeve 1 is sleeved on the detection end 20, The first fixing portion 13 is along the second fixing portion 202 moves until the V-shaped bending structure 131 is locked in the locking groove 2031. Thereby, the supplementary sleeve 1 can pass through the first fixing portion 13 to interact with the second fixing portion 202, and when the supplementary sleeve 1 is assembled on the detection end 20, it can allow the first The fixing portion 13 slides along the second fixing portion 202, and then the V-shaped bending structure 131 can be locked in the locking groove 2031. In this embodiment, the supplementary sleeve 1 has two first fixing portions 13 and the detection end 20 has two second fixing portions 202 as an example.

In addition, in addition to the foregoing embodiment, the structural aspect of adding the magnetic positioning and fixing function is further described here. According to the present invention, the first fixing portion 13 may have a first magnetic member 132 to assemble with the second fixing portion 202 having a second magnetic member 2021. When the first fixing portion 13 and the second fixing portion 202 are mutually fixed to make the first magnetic member 132 approach or contact the second magnetic member 2021, the first magnetic member 132 has a first polarity, the first The two magnetic attraction members 2021 have the second polarity opposite to the first polarity, so that the first magnetic attraction member 132 and the second magnetic attraction member 2021 form a different-pole attraction state, wherein the first magnetic attraction The magnetic attraction force of the magnetic attraction between the component 132 and the second magnetic attraction element 2021 is greater than the gravity of the supplementary bushing 1 to achieve the effect of permanently positioning the supplementary bushing 1 without loosening, which is described herein Gravity refers to the force caused by the weight of the supplementary sleeve 1. For example, let the first magnetic attraction element 132 be a magnetic substance such as iron, and the second magnetic attraction element 2021 be a magnet with N pole and S pole, and receive the second magnetic attraction when the two approach or contact The role of the member 2021, the first magnetic member 132 is considered to be closer to the N pole or the S pole of the second magnetic member 2021, and it is converted to the opposite polarity of the second magnetic member 2021 to achieve the opposite pole attraction Of efficacy. Of course, making the first magnetic attraction element 132 a magnet and the second magnetic attraction element 2021 being a magnetic substance can also achieve the same effect. Or, the first magnetic attraction element 132 and the second magnetic attraction element 2021 are magnets with N poles and S poles, and the effect of attracting different poles can be achieved by setting the two at different polar positions. Or as shown in FIG. 5, in this embodiment, the first fixing portion 13 is a sliding groove and has the first magnetic member 132, the blocking portion 203 is a convex rib, and the second fixing The connecting part 202 is a bump, when the compensation When the charging sleeve 1 is sleeved on the detection end 20, the second fixing portion 20 moves along the first fixing portion 13 and attracts and fixes with the second magnetic attraction element 2021 through the first magnetic attraction element 132 . In this way, when the supplementary bushing 1 and the detection pin 2 are assembled, the first fixing portion 13 and the second fixing portion 202 can be used to achieve the fixing and foolproof effects, and the first magnetic attraction The component 132 and the second magnetic suction component 2021 can be fastened and fastened, and the speed of replacement and assembly can be improved.

As shown in Figs. 1 and 2, in application, after the detection pins 2 are set in the accommodating holes 301 of the base 30, each of the detection pins 2 protrudes a predetermined length outside the accommodating holes 301 It is X. When the test object is detected, the second contact portion 201 of any of the detection ends 20 is worn out, so that the length of the detection needle 2 protruding from the accommodating hole 301 is less than the predetermined length X , The supplementary sleeve 1 can be sleeved on the detection end 20 to replace the second contact part 201 with the first contact part 101, so that the length of the detection pin 2 protruding outside the accommodating hole 301 is restored Up to the predetermined length X, while maintaining the same level with the other detection needles 2. And since the detection needles 2 are arranged behind the accommodating holes 301, each of the stop portions 203 has the same horizontal height, so even if the wear degrees of the second contact portions 201 are different, the supplementary sleeve 1 is After setting, it can still stop at the same position to maintain the horizontal height of the detection needles 2. When the first contact portion 101 of the supplementary sleeve 1 is worn due to detection, it is only necessary to remove the supplementary sleeve 1 and replace the supplementary sleeve 1 with the new detection pin 2. In this way, the time and cost required for maintenance operations can be greatly reduced, so that the second contact part 201 has the damaged detection needle 2, and other parts of the structure can still be used without removing the entire detection needle. Furthermore, under the condition of simplifying the maintenance process, the purpose of "needle change" can still be achieved.

In summary, the supplementary bushing 1, the detection needle 2 and the supplementary detection device 3 disclosed in the present invention are the maintenance operations of the past detection device, which avoids the inconvenience of disassembling and damaging the needle body. The concept of replacing the part used to contact the object under test makes it unnecessary to spend a lot of time in maintenance operations In addition, it also avoids the waste caused by discarding the detection needle 2 where only the second contact portion 201 is damaged. In particular, most of the test needles used for electrical testing are of a micro-structure. In the past, the needle replacement operation is not only to remove the entire test needle and replace it with a new test needle. Disassembling the entire test needle and then taking out the components one by one, and then placing the new test needle components one by one into the receiving hole . Therefore, in order to reduce the difficulty and inconvenience of maintenance operations, changing the assembly structure of the base part and the detection needle, or directly changing the structure of the detection needle itself, all solve the maintenance problem but derive the same in production or assembly. Especially as mentioned above, the detection needle itself has a structure with a miniature size, and it is extremely difficult to redesign, manufacture, and assemble the internal structure of the detection needle, and the manufacturer will encounter great problems in implementation. According to this, the supplementary bushing 1, the detection needle 2 and the supplementary detection device 3 proposed by the present invention can effectively solve the aforementioned many inconveniences, and a simple assembly step can be used to allow the detection needle 2 to be worn. Continuing to use, the undamaged part of the detection needle 2 can also be retained. When the supplementary sleeve 1 is worn out, the old supplementary sleeve 1 is withdrawn manually and mechanically assisted and a new supplementary shaft is assembled Set 1, you can let the test pin 2 continue to use.

However, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention; therefore, all changes and modifications made without departing from the scope of the present invention should be covered in the present invention Within the scope of the patent.

1‧‧‧Supply shaft sleeve

10‧‧‧Closed end

101‧‧‧ First Contact Department

1011‧‧‧Pointed structure

11‧‧‧Open

12‧‧‧Accommodation slot

13‧‧‧First fixed part

2‧‧‧Detection needle

20‧‧‧Detector

201‧‧‧Second Contact Department

202‧‧‧Second fixing part

203‧‧‧stop

21‧‧‧Connector

Claims (10)

A supplementary shaft sleeve, which is sleeved on a detection needle, includes: a closed end with a first contact portion for contacting with a test object to form a conduction; an open end opposite to the closed end; a container A groove is formed by recessing from the open end to the closed end; and at least one first fixed portion is provided on the inner surface of the containing groove, wherein the supplementary shaft sleeve is sleeved on the detection needle from the open end A detection end, and the first fixing portion and the at least one second fixing portion of the detection end are mutually arranged, so that the detection end is located in the accommodating groove, wherein the first fixing portion is It is a concave or convex thread structure wound along the inner surface of the accommodating groove to be assembled with the second fixed portion corresponding to the convex or concave thread structure, and the number of thread groups of the first fixed portion Is greater than the number of thread sets of the second fixed portion, and one of the first contact portion and the second contact portion of the detection end has at least one point structure, and the height of the point structure of the first contact portion is less than The cusp structure height of the second contact portion. The supplementary bushing as described in item 1 of the patent application scope, wherein the first fixing portion is an elastic sheet body and has a V-shaped bending structure, and is provided with one end protruding from the detection end surface, and having The second fixing portion of one stop portion of at least one latching groove is assembled. When the supplementary bushing is sleeved on the detection end, the first fixing portion moves along the second fixing portion until the first fixing portion A bending part of a fixed part is caught in the catching groove. The supplementary bushing as described in item 1 of the patent application scope, wherein the first fixed portion has a first magnetic member to assemble with the second fixed portion with a second magnetic member, when When the first fixing part and the second fixing part are arranged with each other so that the first magnetic attraction part approaches or contacts the second magnetic attraction part, the first magnetic attraction part has a first polarity, the The second magnetic member has the first pole The opposite polarity of the second polarity, so that the first magnetic member and the second magnetic member form a different-pole attraction state, wherein the first magnetic member and the second magnetic member magnetically attract The magnetic attraction force is greater than the gravity of the supplementary shaft sleeve, so as to achieve the effect of permanently positioning the supplementary shaft sleeve without loosening. The supplementary bushing as described in item 5 of the patent application scope, wherein the first fixing portion is a sliding groove and has the first magnetic member, and one end is provided with a protruding surface of the detection end, and is a The second fixing portion of one stop portion of the convex rib is assembled. When the supplementary bushing is sleeved on the detection end, the second fixing portion moves along the first fixing portion and transmits the first magnet The suction member and the second magnetic suction member attract and fix each other. A supplementary detection device for electrical or signal detection of an object to be tested includes: a base with a plurality of accommodation holes; a plurality of detection needles are provided in the accommodation holes for each detection The needle has a detection end and a connection end disposed oppositely, the connection end is for electrical connection with a detection machine, the detection end protrudes out of the accommodating hole and has a second contact portion and at least a second fixed connection And a stop portion, the second contact portion is located at the end of the detection end, the second fixed portion is located at the outer surface of the detection end, the stop portion is located at one end of the second fixed portion, each of which The detection end of the detection needle protrudes a predetermined length outside the accommodating hole, and the stop portions of the detection needles on the base are at the same horizontal height; and at least one supplementary bushing has a relative A closed end and an open end are provided, and an accommodating groove is formed concavely from the open end, the inner surface of the accommodating groove is provided with at least a first fixing portion, and the closed end has a first contact unit; Wherein, when the second contact portion of any of the detection needles is worn out, the supplementary bushing is assembled with each other through the first fixing portion and the second fixing portion until it stops against the stop portion and stops positioning Thus, the length of the detection end of the detection needle protruding outside the accommodating hole is restored to the predetermined length. The supplementary detection device as described in item 5 of the patent application scope, wherein the first fixing portion is a concave or convex thread structure wound along the inner surface of the accommodating groove, and the second fixing portion It should be that the first fixing portion is a convex or concave thread structure wound around the outer surface of the detection end. The supplementary detection device as described in item 6 of the patent application range, wherein the number of thread sets of the first fixed portion is greater than the number of thread sets of the second fixed portion, and the first contact portion and the second The contact portion has at least one sharp point structure, the height of the sharp point structure of the first contact portion is less than the height of the sharp point structure of the second contact portion, and the extension length of the second fixed portion is less than that of the detection pin At the maximum stroke, the detection end protrudes beyond the length of the receiving hole. The supplementary detection device as described in item 5 of the patent application scope, wherein the first fixing portion is an elastic sheet body and has a V-shaped bending structure, and the second fixing portion is a sliding groove, the The blocking portion has at least one latching groove, and when the supplementary sleeve is sleeved on the detection end, the first fixing portion moves along the second fixing portion until the V-shaped bending structure is latched on the latch Inside the slot. The supplementary detection device as described in item 5 of the patent application scope, wherein the first fixing portion has a first magnetic attraction element, and the second fixing portion has a second magnetic attraction element, when the first fixing When the connecting portion and the second fixing portion are arranged to make the first magnetic member approach or contact the second magnetic member, the first magnetic member has a first polarity, and the second magnetic member The element has the second polarity opposite to the first polarity, so that the first magnetic element and the second magnetic element form a different-pole attraction The magnetic attraction force of the magnetic attraction between the first magnetic attraction member and the second magnetic attraction member is greater than the gravity of the supplementary bushing, so as to achieve the effect of permanently positioning the supplementary bushing without loosening. The supplementary detection device as described in item 9 of the patent application scope, wherein the first fixing portion is a sliding groove with the first magnetic member, the blocking portion is a convex rib, and the second fixing The part is a convex block. When the supplementary bushing is sleeved on the detection end, the second fixing part moves along the first fixing part and passes through the first magnetic part and the second magnetic part Attract fixed.

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