CN210923782U - Test needle die assembly - Google Patents

Abstract

The utility model discloses a test needle mold assembly, which comprises a sheath and a bottom plate which are detachably connected in a contraposition way from front to back, wherein the back end surface of the bottom plate is provided with a plurality of tail needles connected with a signal wire; a plurality of base plates which are sequentially arranged between the sheath and the bottom plate in parallel from front to back; run through each in proper order respectively by centre to both ends the double-end probe of backing plate, but the front end of double-end probe axially telescopically be provided with run through and stretch out in the preceding syringe needle of sheath, but the rear end of double-end probe axially telescopically be provided with the back syringe needle of tail needle counterpoint connection. The test needle die assembly is simple and easy to disassemble and assemble, and can realize quick maintenance or replacement of parts such as probes, so that the whole service life of the test needle die is effectively prolonged, and the use cost of the test needle die is reduced.

Description

Test needle die assembly

Technical Field

The utility model relates to a supporting test equipment technical field of electrical equipment, in particular to test needle mould assembly.

Background

The test pin die is generally used for testing the performance of an electric device product after being plugged. At present, during the actual operation of the existing test needle mold, because the probe is usually tightly assembled with the needle mold main body component in an interference fit manner, the probe is easily damaged or broken down during the plugging use, and the probe needs to be maintained or replaced for ensuring the continuous use of the equipment.

Therefore, how to realize the simple disassembly and assembly of the test pin die assembly to realize the rapid maintenance or replacement of the probe and other components, thereby effectively prolonging the overall service life of the test pin die and reducing the use cost thereof is an important technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a test needle mould assembly, this test needle mould assembly's dismouting simple accurate can realize the quick maintenance or the change of parts such as probe to effectively prolong the whole life of test needle mould and reduce its use cost.

In order to solve the technical problem, the utility model provides a test needle module assembly, include:

the sheath and the bottom plate are detachably connected in an aligned mode from front to back, and a plurality of tail needles connected with the signal wire are arranged on the back end face of the bottom plate;

a plurality of base plates which are sequentially arranged between the sheath and the bottom plate in parallel from front to back;

run through each in proper order respectively by centre to both ends the double-end probe of backing plate, but the front end of double-end probe axially telescopically be provided with run through and stretch out in the preceding syringe needle of sheath, but the rear end of double-end probe axially telescopically be provided with the back syringe needle of tail needle counterpoint connection.

Preferably, a compression spring is embedded between the rear end face of the backing plate positioned at the rearmost part and the front end face of the bottom plate, the axis of the compression spring is parallel to the axis of the double-ended probe, and a fit clearance is formed between the rear end part of the sheath and the front end part of the bottom plate.

Preferably, the sheath is provided with a plurality of guide holes, the guide holes are internally provided with equal-height screws in a contraposition penetrating manner, the front end parts of the equal-height screws are provided with thread sections fastened with the bottom plate threads, and the middle parts of the equal-height screws are provided with polished rod sections in clearance fit with the guide holes.

Preferably, the double-ended probe includes the loop bar that is located the middle part, the inside of loop bar is provided with can follow the flexible buffer spring of the axial of this loop bar, preceding syringe needle with back syringe needle respectively the coaxial cartridge of telescopically in the both ends of loop bar, just buffer spring inlays the dress in preceding syringe needle with between the back syringe needle.

Preferably, one of the pads is in interference fit with each of the loop bars, and the remaining pads are in clearance fit with each of the dual-headed probes.

Preferably, the front end face of the bottom plate is provided with a plurality of positioning columns which are aligned, inserted and matched with the sheaths and the base plates.

Preferably, a plurality of positioning magnets are arranged on the front end face of the bottom plate, a plurality of positioning magnets are arranged inside the sheath, the positioning magnets are in magnetic attraction fit with the limiting magnets, the limiting magnets are positioned at the rearmost parts, the base plates are in insertion fit, and the outer walls of the limiting magnets are matched with the rest limiting magnets in a fit mode between the outer peripheral walls of the base plates.

Preferably, the cross-sectional area of the sheath increases from front to back.

Preferably, the intersection of the outer side walls of the sheath is smoothly transited to a chamfer surface.

Preferably, the front end of the sheath is provided with an extension insertion sleeve, and each front needle head penetrates through the extension insertion sleeve from back to front and extends out of the extension insertion sleeve.

Compared with the prior art, the utility model provides a test needle mould assembly, in its use, if the probe damages or other condition that need carry out the subassembly and dismantle, only need to unpack sheath and bottom plate apart, can lift off parts such as each backing plate and double-end probe inside the two fast for corresponding maintenance or change operation, after the operation finishes, only need again each part counterpoint the equipment can; meanwhile, due to the adoption of the double-head probe structure, the front needle head and the rear needle head of the double-head probe can be respectively contracted to relieve the stress generated in the inserting process of the test needle die assembly, so that the structural impact is relieved, the phenomena of structural damage or needle head clamping failure and the like of the double-head probe are effectively avoided, the stable and reliable work of the test needle die assembly is ensured, the fault rate is reduced, the integral service life of the test needle die assembly is prolonged, the phenomenon of overhigh use cost caused by integral scrapping of needle die equipment is effectively avoided, and the related test operation efficiency is correspondingly improved.

The utility model discloses an in another preferred scheme, be located rearmost the rear end face of backing plate with it is equipped with compression spring to inlay between the preceding terminal surface of bottom plate, compression spring's axis with the axis of double-end probe parallels, the rear end of sheath with fit clearance has between the preceding tip of bottom plate. The compression spring can effectively relieve the structural impact generated when the test needle die assembly is plugged with related equipment, and the structural impact is mutually matched with the elastic deformation of the compression spring through the matching gap between the sheath and the bottom plate, so that the sheath and the bottom plate are positioned in the actual operation process, and the test needle die assembly has moderate looseness in the length direction, the width direction and the height direction, and the sheath and the bottom plate are ensured to have sufficient multidirectional relative motion space and elastic resetting capability, so that the structural impact on the main mechanism of the test needle die assembly in the plugging process of the related equipment is further reduced, the damage or failure of main working components such as a double-ended probe is avoided, the operation efficiency and the operation precision of the test needle die assembly are improved, the plugging operation difficulty of the related equipment is reduced, and the operation efficiency of the related test operation is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of the overall structure of a test pin die assembly according to an embodiment of the present invention;

FIG. 2 is a front elevational view of the sheath portion of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural view of the baseplate portion of FIG. 1;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a top view of the construction of the backing plate of FIG. 1 in interference fit with the dual-headed probe;

fig. 7 is a front view of the structure of the pad of fig. 1 in clearance fit with a dual-headed probe.

The device comprises a base plate, a sheath, a guide hole, a height-equal screw, a chamfer surface, an extension inserting sleeve, a base plate, a tail needle, a compression spring, a positioning column, a positioning magnet, a base plate, a 14-double-ended probe and a limiting magnet, wherein the base plate comprises 11 parts, 111 parts, 112 parts, a chamfer surface, 114 parts, 12 parts, a tail needle, a compression spring, a positioning column, 124 parts, a base plate, a 14-.

Detailed Description

The core of the utility model is to provide a test needle mould assembly, this test needle mould assembly's dismouting simple accurate can realize the quick maintenance or the change of parts such as probe to effectively prolong the whole life of test needle mould and reduce its use cost.

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 7, fig. 1 is an exploded view of an overall structure of a test pin mold assembly according to an embodiment of the present invention; FIG. 2 is a front elevational view of the sheath portion of FIG. 1; FIG. 3 is a top view of FIG. 2; FIG. 4 is a schematic structural view of the baseplate portion of FIG. 1; FIG. 5 is a top view of FIG. 4; FIG. 6 is a top view of the construction of the backing plate of FIG. 1 in interference fit with the dual-headed probe; fig. 7 is a front view of the structure of the pad of fig. 1 in clearance fit with a dual-headed probe.

In a specific embodiment, the testing pin mold assembly provided by the utility model comprises a sheath 11 and a bottom plate 12 which are connected in a detachable alignment way from front to back, a plurality of tail pins 121 connected with signal lines are arranged on the back end face of the bottom plate 12, and a plurality of backing plates 13 are arranged between the sheath 11 and the bottom plate 12 in parallel from front to back in sequence; the double-ended probe 14 sequentially penetrates through the backing plates 13 from the middle to two ends, a front needle head penetrating and extending out of the sheath 11 is axially and telescopically arranged at the front end of the double-ended probe 14, and a rear needle head connected with the tail needle 121 in an aligning manner is axially and telescopically arranged at the rear end of the double-ended probe 14.

In the using process, if the probe is damaged or other conditions needing assembly disassembly occur, the parts such as the backing plate, the double-end probe 14 and the like in the sheath 11 and the base plate 12 can be quickly disassembled only by disassembling the sheath 11 and the base plate 12 so as to carry out corresponding maintenance or replacement operation, and after the operation is finished, the parts are aligned and assembled again; meanwhile, due to the adoption of the double-head probe 14 structure, the front needle head and the rear needle head of the double-head probe 14 can be respectively contracted to relieve stress generated in the inserting process of the test needle die assembly, so that structural impact is relieved, the phenomena of structural damage or needle head clamping failure and the like of the double-head probe 14 are effectively avoided, the stable and reliable work of the test needle die assembly is ensured, the fault rate is reduced, the integral service life of the test needle die assembly is prolonged, the phenomenon of overhigh use cost caused by integral scrapping of needle die equipment is effectively avoided, and the relevant test operation efficiency is correspondingly improved.

It should be noted that, in practical application, the tail pin 121 is connected to the bottom plate 12 in an interference fit manner, and the outer end of the tail pin 121 is welded and fixed to the communication cable; correspondingly, in order to ensure the assembling strength of the tail needle 121, a plurality of stepped holes matched with the tail needle 121 in an aligning way penetrate through the bottom plate 12, and the large-diameter section of each stepped hole is close to the rear end face of the bottom plate 12 and is directly inserted into the tail needle 121 in an interference way through the large-diameter section; the small diameter section of the stepped hole is close to the front end face of the bottom plate 12, and is abutted to the insertion end of the tail needle 121 through the stepped surface between the small diameter section and the large diameter section, so that the tail needle 121 is axially limited, and reliable axial support is provided for the tail needle 121.

In addition, the thickness of each backing plate 13 is small, so that the assembly space between the sheath 11 and the bottom plate 12 can be further optimized, the overall assembly structure of the test pin die assembly is simplified, and the difficulty in assembling and disassembling components of the test pin die assembly is further reduced.

Further, a compression spring 122 is fitted between the rear end surface of the rearmost pad 13 and the front end surface of the base plate 12, the axis of the compression spring 122 is parallel to the axis of the double-ended probe 14, and a fitting gap is provided between the rear end portion of the sheath 11 and the front end portion of the base plate 12. This compression spring 122 can effectively alleviate the structural impact that produces when test needle mould assembly and relevant equipment are pegged graft, and cooperate each other through the fit clearance between sheath 11 and bottom plate 12 and compression spring 122's elastic deformation, make all have moderate spaciousness in the length of test needle mould assembly, width, direction of height between sheath 11 and bottom plate 12 in the actual operation process, guarantee to have sufficient multidirectional relative motion space and elastic reset ability between sheath 11 and bottom plate 12, thereby further reduce the structural impact that produces test needle mould assembly main part mechanism among the relevant equipment grafting process, avoid main working parts such as double-end probe 14 to take place the damage or lose efficacy, improve the operating efficiency and the operating accuracy of test needle mould assembly, reduce its grafting operation degree of difficulty, guarantee the operating efficiency of relevant test operation.

In addition, the sheath 11 has a plurality of guide holes 111, the guide holes 111 are aligned with and penetrated by the contour screws 112, the front end of the contour screws 112 has a threaded section fastened with the bottom plate 12, and the middle of the contour screws 112 has a polished rod section in clearance fit with the guide holes 111. The thread section can guarantee the assembly strength among the equal-height screws 112, the sheath 11, the bottom plate 12 and other related components, meanwhile, the polished rod section can fully guarantee the relative motion spaciousness between the sheath 11 and the bottom plate 12, and a certain limit is provided for the relative motion between the sheath 11 and the bottom plate 12 through the plug-in fit between the polished rod section and the guide hole 111, so that the dislocation or the loosening of the components caused by excessive movement is avoided, and the overall structural stability and the assembly strength of the test pin die assembly are guaranteed.

Specifically, the double-ended probe 14 includes the loop bar that is located the middle part, and the inside of loop bar is provided with can follow the flexible buffer spring of the axial of this loop bar, and preceding syringe needle and back syringe needle are coaxial cartridge in the both ends of loop bar respectively telescopically, and buffer spring inlays the dress between preceding syringe needle and the back syringe needle. During actual assembly application, the front needle head extends out of the front end part of the sheath 11 so as to be inserted in a contraposition mode with tested equipment, and the rear needle head is connected with the tail needle 121 in a contraposition mode through the bottom plate 12 so as to be reliably connected with a communication cable through the tail needle 121; in the process of splicing operation, the front needle head retracts after being subjected to structural impact and is correspondingly compressed by the front end of the buffer spring, meanwhile, the buffer spring uniformly transmits a part of structural stress to the rear needle head after relieving the impact and moderately offsets the structural stress at the rear needle head retracted due to the structural impact during splicing, so that the structural impact at the front needle head and the rear needle head is fully relieved and the stress is uniformly distributed through the double-end stress compression of the buffer spring, the needle head failure or clamping stagnation caused by rigid impact is effectively avoided, the reliable and stable work of the double-end probe 14 is ensured, and the overall working reliability of the test needle mold assembly is correspondingly improved.

It should be noted that, in consideration of the working condition application scenario under most conditions, the limit stroke length of the front needle of the double-ended probe 14 is 5mm, the actual working condition design stroke is preferably 3mm, the limit stroke length of the rear needle is 2.5mm, the actual working condition design stroke is preferably 1.5mm, and accordingly, the design thickness of each backing plate 13 is preferably 10mm, so as to meet the requirement of the plugging working condition under most conditions as much as possible, and improve the usability of the test needle mold assembly. Of course, the above-mentioned relevant dimensions are only for illustration, and in practical application, the worker can flexibly adjust the corresponding component dimensions and the parameters such as the movement stroke thereof according to the working condition requirements, so as to meet the use requirements in different situations.

More specifically, one of the pads 13 is an interference fit with each loop bar, and the remaining pads 13 are a clearance fit with each of the dual-headed probes 14. Through loop bar and 13 interference fit of backing plate, effectively avoided because of the syringe needle body of probe with bear phenomenon such as syringe needle jamming or damage that the direct mount of carrier leads to the stable high-efficient work of each syringe needle has effectively been guaranteed.

It should be particularly noted that, in practical applications, the pad 13 in interference fit with the sleeve rod is preferably the pad 13 located at the middle position, so as to minimize the possibility of structural interference between the rest of the pads 13 and the needle head, and ensure efficient and stable operation of the double-ended probe 14, and the corresponding structure may refer to the drawings, where 3 pads 13 are shown, and the pad 13 located at the middle position is in interference fit with the sleeve rod. Of course, the backing plate 13 in interference fit with the loop bar in practical application is not limited to the above, and a worker can flexibly select the backing plate according to actual assembly requirements and working conditions, and in principle, the backing plate can meet actual use requirements of the test pin die assembly.

Furthermore, the front end surface of the bottom plate 12 is provided with a plurality of positioning posts 123 which are aligned and inserted and matched with the sheath 11 and the backing plates 13. Through the alignment connection between the positioning columns 123, the base plates 13, the sheaths 11 and other adapting pieces, the assembly precision and the alignment assembly efficiency of the test needle mold assembly can be further improved, and the disassembly and assembly operation of related equipment is ensured to be more simple, convenient and smooth.

In addition, a plurality of positioning magnets 124 are arranged on the front end face of the bottom plate 12, a plurality of limiting magnets 15 which are in magnetic attraction fit with the positioning magnets 124 are arranged inside the sheath 11, the limiting magnets 15 are in insertion fit with the backing plate 13 positioned at the rearmost part, and the outer wall of each limiting magnet 15 is in fit with the outer peripheral wall of each other backing plate 13. When each part of the test needle die assembly is preassembled before being assembled, the sheath 11, each backing plate 13 and the bottom plate 12 can be aligned and adapted through the magnetic attraction between each limiting magnet 15 and the positioning magnet 124, so that the assembly of the whole assembly can be implemented through fasteners such as screws in the following process, and the assembly precision and the assembly efficiency of the assembly are effectively improved.

It should be noted that the above-mentioned magnetic attraction between the position limiting magnet 15 and the positioning magnet 124 means that the magnetic poles of the adjacent ends of the position limiting magnet 15 and the positioning magnet 124 are opposite, and of course, in practical applications, either one of the position limiting magnet 15 and the positioning magnet 124 can be replaced by an iron member to ensure the corresponding magnetic attraction positioning and pre-assembly effect.

On the other hand, the cross-sectional area of the sheath 11 increases from front to back. This kind of cross section gradual change structure makes sheath 11 wholly be the square cone form to further improve the grafting counterpoint precision between sheath 11 and corresponding test equipment, reduce corresponding grafting operation degree of difficulty, improve operating efficiency.

Further, the intersection of the outer side walls of the sheath 11 is smoothly transited to a chamfer surface 113. Each chamfer surface 113 can further avoid structural interference or retardation in the process of splicing between the sheath 11 and corresponding test equipment, so that the alignment splicing process is smoother and more convenient, and the corresponding operation efficiency is further improved.

The sheath 11 has an extension sleeve 114 at its front end, and each front needle extends through the extension sleeve 114 from the rear to the front. The extended inserting sleeve 114 can further improve the inserting precision of the sheath 11 and corresponding testing equipment, and provides reliable structural protection and proper guidance for the front needle head, thereby further improving the inserting operation efficiency and the assembly working reliability of the testing needle mold assembly.

It should be noted that, the compression spring 122, the contour screw 112, the positioning magnet 124, and the position limiting magnet 15 mentioned herein are preferably uniformly distributed in sequence along the circumferential direction of the sheath 11, and are further preferably uniformly distributed according to the orientation of each vertex angle of the sheath 11, and the number is preferably 4 accordingly, so as to reduce the number of components and the overall cost of the device while ensuring the arrangement space and the working effect of the corresponding components.

It should be further noted that most of the alignment adaptation structures, such as the insertion structures, related to the backing plates 13, described above need corresponding holes to provide structural support, and these holes can be visually seen from the corresponding drawings, in order to ensure the limiting and assembling strength in practical applications, different structural forms such as stepped holes, blind holes, or through holes may be adopted, and a worker may correspondingly adjust and select the hole structures and the hole structures of different types according to the assembling requirements of different working conditions, which is not described herein in detail.

In summary, in the use process of the testing needle mold assembly provided in the present invention, if the probe is damaged or other situations need to be disassembled, the sheath and the bottom plate only need to be disassembled, and then the backing plates and the double-ended probe and other components inside the sheath and the bottom plate can be quickly disassembled, so as to perform corresponding maintenance or replacement operations, and after the operation is completed, the components are assembled by aligning again; meanwhile, due to the adoption of the double-head probe structure, the front needle head and the rear needle head of the double-head probe can be respectively contracted to relieve the stress generated in the inserting process of the test needle die assembly, so that the structural impact is relieved, the phenomena of structural damage or needle head clamping failure and the like of the double-head probe are effectively avoided, the stable and reliable work of the test needle die assembly is ensured, the fault rate is reduced, the integral service life of the test needle die assembly is prolonged, the phenomenon of overhigh use cost caused by integral scrapping of needle die equipment is effectively avoided, and the related test operation efficiency is correspondingly improved.

The test needle module assembly provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A test pin die assembly, comprising:

the sheath and the bottom plate are detachably connected in an aligned mode from front to back, and a plurality of tail needles connected with the signal wire are arranged on the back end face of the bottom plate;

a plurality of base plates which are sequentially arranged between the sheath and the bottom plate in parallel from front to back;

run through each in proper order respectively by centre to both ends the double-end probe of backing plate, but the front end of double-end probe axially telescopically be provided with run through and stretch out in the preceding syringe needle of sheath, but the rear end of double-end probe axially telescopically be provided with the back syringe needle of tail needle counterpoint connection.

2. The test pin die assembly of claim 1, wherein: and a compression spring is embedded between the rear end face of the backing plate positioned at the rearmost part and the front end face of the bottom plate, the axis of the compression spring is parallel to the axis of the double-ended probe, and a fit clearance is formed between the rear end part of the sheath and the front end part of the bottom plate.

3. The test pin die assembly of claim 2, wherein: the sheath is provided with a plurality of guide holes, equal-height screws penetrate through the guide holes in an aligned mode, the front end portions of the equal-height screws are provided with thread sections fastened with the bottom plate through threads, and the middle portions of the equal-height screws are provided with polished rod sections in clearance fit with the guide holes.

4. The test pin die assembly of claim 1, wherein: the double-end probe is including being located the loop bar at middle part, the inside of loop bar is provided with can follow the flexible buffer spring of the axial of this loop bar, preceding syringe needle with back syringe needle respectively the coaxial cartridge of telescopically in the both ends of loop bar, just buffer spring inlay dress in preceding syringe needle with between the back syringe needle.

5. The test pin die assembly of claim 4, wherein: one of the backing plates is in interference fit with the loop bars, and the rest of the backing plates are in clearance fit with the double-ended probes.

6. The test pin die assembly of claim 1, wherein: and a plurality of positioning columns which are matched with the sheaths and the base plates in alignment and insertion are arranged on the front end surface of the bottom plate.

7. The test pin die assembly of claim 1, wherein: the utility model discloses a bottom plate, including bottom plate, the preceding terminal surface of bottom plate has a plurality of location magnet, the inside of sheath be provided with a plurality ofly with the spacing magnet of complex is inhaled to location magnet magnetism, spacing magnet with be located rearmost the assembly fit is inserted between the backing plate, and each spacing magnet's outer wall rather than each the laminating adaptation between the peripheral wall of backing plate.

8. The test pin die assembly of claim 1, wherein: the cross-sectional area of the jacket increases from front to back.

9. The test pin die assembly of claim 8, wherein: and the intersection of the outer side walls of the sheath is smoothly transited to form a chamfer surface.

10. The test pin die assembly of claim 1, wherein: the front end part of the sheath is provided with an extension inserting sleeve, and each front needle head penetrates through the extension inserting sleeve from back to front and extends out of the extension inserting sleeve.

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