CN217803944U - Bullet needle mechanism and test equipment - Google Patents

Abstract

The utility model relates to the technical field of chip testing, in particular to a spring needle mechanism and a testing device, wherein the spring needle mechanism is arranged on the testing device and is suitable for being matched with a chip for use, and comprises a mounting seat, a replaceable spring needle component and a locking component, wherein the spring needle component comprises a fixed seat and a spring needle piece which can be electrically connected with the chip; the needle ejecting piece is fixed on the fixed seat; the fixing seat is detachably assembled on the mounting seat and locked on the mounting seat through the locking assembly. Different spring pin assemblies can be selected when chips of different models need to be tested, the mode of replacing the whole testing device or the whole spring pin mechanism is avoided, the cost is lower, the operation is simpler and more convenient, and the efficiency is higher.

Description

Bullet needle mechanism and test equipment

Technical Field

The utility model relates to a chip test technical field especially relates to a bullet needle mechanism and test equipment.

Background

In the field of printers, in order to determine whether the writing and reading of the code by the ink box chip are successful, the ink box test equipment needs to be tested.

The elastic needle mechanism of the existing ink box testing equipment is fixed on the lifting mechanism, so that one ink box testing equipment can only test one ink box chip, and when the ink box testing equipment faces ink box chips of different models, the ink box testing equipment needs to be replaced and customized again, so that the testing cost is higher, or the whole elastic needle mechanism is replaced, the operation is complex, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bullet needle mechanism and test equipment to test with high costs or the operation is complicated, the problem of inefficiency when solving among the prior art to the ink horn chip of different models.

In order to achieve the purpose, the utility model adopts the following technical proposal:

on the one hand, the utility model provides a bullet needle mechanism installs on test equipment, is suitable for and uses with the chip cooperation, bullet needle mechanism includes:

a mounting seat;

the replaceable elastic needle assemblies comprise fixed seats and elastic needle parts which can be electrically connected with the chips; the elastic needle piece is fixed on the fixed seat;

the fixing seat is detachably assembled on the mounting seat and locked on the mounting seat through the locking assembly.

Preferably, one of the mounting seat and the fixed seat is provided with a positioning pin, the other is provided with a positioning hole, and the fixed seat and the mounting seat are positioned through the positioning pin and the positioning hole.

Preferably, the locking assembly comprises a fixing hole arranged on the fixing seat, a locking screw hole arranged on the mounting seat and a locking screw; and the locking screw penetrates through the fixing hole and then is in threaded connection with the locking screw hole.

Preferably, the locking screw comprises a nut and a stud arranged at one end of the nut, and a friction piece is arranged on the periphery of the nut; or

The locking screw further comprises a connecting piece, the connecting piece is arranged between the screw cap and the stud, and the outer diameter of the connecting piece is larger than the inner diameter of the fixing hole.

Preferably, the locking assembly comprises an adsorption piece, and the adsorption piece is arranged on the fixed seat and can adsorb the mounting seat; or

The adsorption piece is arranged on the mounting seat and can adsorb the fixed seat; or

The adsorption piece can adsorb the mount pad with the fixing base.

Preferably, the adsorption member includes a magnet capable of adsorbing the mounting seat and/or the fixing seat.

Preferably, the mounting seat is provided with two first mounting grooves, the fixing seat is provided with two second mounting grooves, the two first mounting grooves are opposite to the two second mounting grooves one by one, and the four magnets are respectively arranged in the two first mounting grooves and the two second mounting grooves.

On the other hand, the utility model also provides a test equipment, including frame, positioning mechanism and pushing mechanism and any one of the above-mentioned technical scheme bullet needle mechanism, positioning mechanism with pushing mechanism all locates in the frame, bullet needle mechanism locates pushing mechanism's output, pushing mechanism is used for promoting bullet needle mechanism is close to or keeps away from positioning mechanism, positioning mechanism is used for the centre gripping work piece that awaits measuring.

Preferably, the positioning mechanism comprises a fixed positioning piece and a movable positioning piece, and the fixed positioning piece is arranged on the rack in a position-adjustable manner in a horizontal plane; the movable positioning part is slidably arranged on the rack and can be close to the fixed positioning part to clamp the workpiece to be detected or be far away from the fixed positioning part to release the workpiece to be detected.

Preferably, the pushing mechanism comprises a pushing seat and a pushing assembly, the pushing seat is adjustably arranged on the rack along the vertical direction, the pushing assembly is arranged on the pushing seat, and the elastic needle mechanism is arranged at the output end of the pushing assembly.

The utility model has the advantages that:

the utility model provides a bullet needle mechanism and test equipment, bullet needle mechanism installs on test equipment, is suitable for and cooperates with the chip and uses, and bullet needle mechanism includes mount pad, removable bullet needle subassembly and locking Assembly, wherein, bullet needle subassembly includes fixing base and the bullet needle spare that can be electrically connected with the chip; the needle ejecting piece is fixed on the fixed seat; the fixing seat is detachably assembled on the mounting seat and locked on the mounting seat through the locking assembly. Different spring pin assemblies can be selected when chips of different models need to be tested, the mode of replacing the whole testing device or the whole spring pin mechanism is avoided, the cost is lower, the operation is simpler and more convenient, and the efficiency is higher.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a testing apparatus in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pogo pin mechanism of a first structure according to an embodiment of the present invention;

fig. 3 is a first schematic structural diagram of a pogo pin mechanism of a second structure according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of the pogo pin mechanism of the second structure in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a testing apparatus in an embodiment of the present invention.

In the figure:

x, a first direction; y, a second direction;

100. a frame;

200. a needle ejection mechanism;

300. a pushing mechanism; 310. a pushing seat; 320. a pushing assembly; 321. a connecting rod; 322. a handle;

400. a positioning mechanism; 410. fixing a positioning piece; 411. a first fixing member; 412. a second fixing member; 420. a movable positioning member;

500. a display screen; 600. an ink cartridge; 700. a host;

1. a mounting seat; 11. positioning pins; 12. locking the screw hole;

2. a bullet needle assembly; 21. a fixed seat; 211. positioning holes; 212. a fixing hole; 22. a needle ejecting member;

3. locking the screw; 31. a nut; 32. a stud; 33. a connecting member; 4. and an adsorbing member.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Example one

As shown in fig. 1-4, the present embodiment provides a pogo pin mechanism, which is suitable for being used with different types of chips, the pogo pin mechanism includes a mounting base 1, a locking assembly and a replaceable pogo pin assembly 2, the pogo pin assembly 2 includes a fixed base 21 and a pogo pin member 22 electrically connected to the chip; the needle ejecting piece 22 is fixed on the fixed seat 21; the fixing seat 21 is detachably assembled on the mounting seat 1, and the fixing seat 21 is locked on the mounting seat 1 through a locking assembly. Wherein the needle ejection member 22 includes a plurality of needles. The number and/or arrangement of the pins in different pin ejection members 22 may be different. In addition, the bullet needle includes needle cover and contact, and the contact is worn to locate in the needle cover, and is equipped with the spring between contact and the needle cover. With the help of the arrangement, different elastic needle assemblies 2 can be selected when chips of different models need to be tested, the mode of replacing the whole testing device or the elastic needle mechanism 200 is avoided, the cost is lower, the operation is simpler and more convenient, and the testing efficiency is higher. Here, it should be noted that different types of chips generally refer to consumable chips suitable for different printers, and may be chips with different contact positions. The elastic needle members 22 in the replaceable elastic needle assembly 2 can correspond to different types of chips respectively and are electrically connected with the different types of chips.

One of the mounting seat 1 and the fixed seat 21 is provided with a positioning pin 11, the other is provided with a positioning hole 211, and the fixed seat 21 and the mounting seat 1 are positioned through the positioning pin 11 and the positioning hole 211. Because rethread locking component locks after the cooperation of locating pin 11 and locating hole 211 between fixing base 21 and the mount pad 1 of every bullet needle subassembly 2, can improve the installation precision of bullet needle subassembly 2 and mount pad 1.

Optionally, the mounting base 1 is a U-shaped structure, and the cable connected with the elastic needle passes through the U-shaped opening. The cable connected with the pogo pin is connected to the host 700 in a communication manner, wherein a controller is arranged in the host 700 and used for testing whether a program in the chip is qualified or not.

In the embodiment, regarding the structure of the locking assembly, specifically, the locking assembly includes a fixing hole 212 provided on the fixing base 21, a locking screw hole 12 provided on the mounting base 1, and a locking screw 3; the locking screw 3 is threaded in the locking screw hole 12 after passing through the fixing hole 212. The installation seat 1 and the fixed seat 21 can be connected by the arrangement of the structure, and the connection is firm.

Preferably, the lock screw 3 includes a nut 31 and a stud 32 provided at one end of the nut 31, and a friction member is provided at an outer circumference of the nut 31 to increase friction force and facilitate twisting. The friction member is in a stripe structure, and the extending direction of the stripes is parallel to the axial direction of the stud 32. The outer diameter of the nut 31 of the locking screw 3 is 2-5 times the outer diameter of the stud 32. This arrangement makes the nut 31 easier to grasp. Preferably, the lock screw 3 further includes a connecting member 33, the connecting member 33 is disposed between the nut 31 and the stud 32, and an outer diameter of the connecting member 33 is larger than an inner diameter of the fixing hole 212. The nut 31, the stud 32 and the connecting piece 33 are integrally formed. Preferably, the connecting member 33 is a cylindrical structure. This setting makes the process of twisting locking screw 3, and the finger can not contact fixing base 21, has reserved the space for the operation, has improved the convenience of spiro union between mount pad 1 and the fixing base 21.

In other embodiments, the friction may be a rubber sleeve around the outer circumference of the nut 31. Alternatively, a rubber boot may be bonded to the nut 31.

In this embodiment, regarding the structure of the locking assembly, optionally, the locking assembly includes an adsorbing member 4, and the adsorbing member 4 is disposed on the fixing base 21 and can adsorb the mounting base 1. In another embodiment of the present embodiment, the suction member 4 is provided in the mounting base 1 and can suck the fixing base 21. In another embodiment of the present embodiment, the suction member 4 can suck the mount 1 and the fixing base 21. Wherein, the adsorption piece 4 can be screwed on the fixed seat 21 or the mounting seat 1.

Specifically, the adsorbing member 4 includes a magnet capable of adsorbing the mounting base 1 and/or the fixing base 21. Optionally, in an embodiment, at least one of the mounting seat 1 and the fixing seat 21 is made of a stainless steel material. Preferably, the mounting seat 1 and the fixing seat 21 are both made of stainless steel. Of course, in other embodiments, the suction member 4 may also be a suction cup.

In order to firmly connect the mounting base 1 and the fixing base 21, in this embodiment, optionally, two sets of magnets are provided, where the two sets of magnets are respectively provided on the mounting base 1 and the fixing base 21, and the two sets of magnets can attract each other. Preferably, there are two magnets in each group, two magnets in one group are respectively disposed on the mounting base 1 at intervals, and two magnets in the other group are respectively disposed on the fixing base 21 at intervals. Of course, in other embodiments, there may be three, four or even ten magnets per set. The number of magnets can be selected according to the magnetic force of each magnet.

Further, mount pad 1 is equipped with two first mounting grooves, and fixing base 21 is equipped with two second mounting grooves, and two first mounting grooves are relative with two second mounting grooves one-to-one, and four magnet are located respectively in two first mounting grooves and two second mounting grooves. With the help of the arrangement of the structure, the magnet is protected, and the magnet is prevented from being separated from the mounting seat 1 or the fixing seat 21 after being scraped. In this embodiment, the mounting base 1 and the fixing base 21 may be made of stainless steel or plastic, and when any one of the mounting base 1 and the fixing base 21 is made of plastic, it needs to be fixed by glue and magnet.

In another embodiment, the magnet disposed on the mounting base 1 may be an electromagnet, in this embodiment, the fixing base 21 may be made of stainless steel, and the disposition of the electromagnet helps to reduce the labor intensity of the detachment between the mounting base 1 and the fixing base 21. The magnet on the fixed base 21 may be a permanent magnet.

Example two

This embodiment still provides a test equipment, and test equipment includes frame 100, positioning mechanism 400 and pushing mechanism 300 and the bullet needle mechanism 200 in the above-mentioned embodiment, and positioning mechanism 400 and pushing mechanism 300 all locate on frame 100, and the output of pushing mechanism 300 is located to bullet needle mechanism 200, and pushing mechanism 300 is used for promoting bullet needle mechanism 200 to be close to or keep away from positioning mechanism 400, and positioning mechanism 400 is used for the centre gripping work piece that awaits measuring. This setting can adapt to the test of the chip of different models, improves efficiency of software testing, reduces test cost.

Regarding the structure of the positioning mechanism 400, in the present embodiment, specifically, the positioning mechanism 400 includes a fixed positioning element 410 and a movable positioning element 420, the fixed positioning element 410 is disposed on the rack 100 in a position adjustable manner in a horizontal plane; the movable positioning member 420 is slidably disposed on the frame 100 and can be close to the fixed positioning member 410 to clamp the workpiece to be tested or far from the fixed positioning member 410 to release the workpiece to be tested. The position of the workpiece to be measured fixed in the positioning mechanism 400 is adjustable by the arrangement, so that chips in different workpieces to be measured can be in butt joint with the elastic needle mechanism 200. Wherein, the work piece that awaits measuring can be ink horn 600, and the chip is located in ink horn 600, and ink horn 600 is equipped with the opening, and bullet needle mechanism 200 can be through opening and chip communication connection.

The positioning mechanism 400 includes a first fixing member 411, a second fixing member 412 and a movable positioning member 420, wherein the first fixing member 411 is adjustably disposed on the rack 100 along the first direction X; the second fixing part 412 is arranged on the rack 100 along the second direction Y in an adjustable position; the movable positioning member 420 is provided with a first positioning surface and a second positioning surface, and is slidably disposed on the rack 100; the first positioning surface is opposite to the first fixing member 411, and the second positioning surface is opposite to the second fixing member 412. Optionally, the first fixing member 411 is provided with a first strip-shaped hole extending along the first direction X, and a first screw passes through the first strip-shaped hole and is screwed to the rack 100; the second fixing part 412 is provided with a second bar-shaped hole extending along the second direction Y, and a second screw passes through the second bar-shaped hole and is screwed to the rack 100. Wherein the first direction X and the second direction Y are arranged at an angle, preferably the first direction X and the second direction Y are perpendicular. Optionally, the movable positioning member 420 includes a sliding block, a sliding rod, a positioning handle and a connecting rod, and the positioning handle is hinged to the rack 100; the sliding rod is slidably arranged on the rack 100, two ends of the connecting rod are respectively hinged with the middle part of the positioning handle and one end of the sliding rod, the other end of the sliding rod is provided with a sliding block, and the first positioning surface and the second positioning surface are arranged on the sliding block in a mutually perpendicular mode; and the first positioning surface is parallel to and opposite to the positioning surface of the first fixing member 411; the second positioning surface is parallel to and opposite the positioning surface of the second fixing member 412.

In this embodiment, regarding the structure of the pushing mechanism 300, specifically, the pushing mechanism 300 includes a pushing base 310 and a pushing assembly 320, the pushing base 310 is disposed on the rack 100 in a position adjustable along the vertical direction, the pushing assembly 320 is disposed on the pushing base 310, and the latch mechanism 200 is disposed on the output end of the pushing assembly 320. The pushing assembly 320 comprises a connecting rod 321 and a handle 322, the middle part of the handle 322 is provided with a connecting part, and the test fixing part is slidably arranged on the sliding rail; the mounting base 1 is fixed on the test fixing member, one end of the connecting rod 321 is hinged with the test fixing member, the other end of the connecting rod 321 is hinged with the connecting part of the handle 322, and one end of the handle 322 is hinged with the hinged part of the pushing base 310. Wherein, the end of the connecting rod 321 hinged to the test fixture forms the output end of the pushing assembly 320.

Further, the connecting rod 321 is provided with an avoiding part, the holding end of the handle 322 can rotate between a first position and a second position, when the holding end is located at the first position, the test fixing part can be driven to move to the test position through the connecting rod 321, and at the moment, the elastic needle can be in butt joint with the chip; when the holding end is located at the second position, the test fixing piece can be driven to move to the release position through the connecting rod 321, the hinge portion is located in the avoiding portion and is changed from one side of a connecting line between the two hinge ends of the connecting rod 321 to the other side, and at the moment, the elastic needle can be separated from the chip.

Referring to fig. 5, optionally, the host 700 is disposed at the rear end of the rack 100, the display screen 500 is disposed at the front end of the rack 100, and the latch mechanism 200 is disposed between the rack 100 and the display screen 500, wherein the latch mechanism 200 is communicatively connected to the host 700, and the display screen 500 is communicatively connected to the host 700.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. An ejection pin mechanism mounted on a test apparatus and adapted to be used in conjunction with a chip, the ejection pin mechanism comprising:

a mounting base (1);

the replaceable bullet needle assembly (2), the bullet needle assembly (2) comprises a fixed seat (21) and a bullet needle piece (22) which can be electrically connected with the chip; the needle ejecting piece (22) is fixed on the fixed seat (21);

the locking assembly, fixing base (21) detachably assemble in mount pad (1), fixing base (21) pass through locking assembly lock in mount pad (1).

2. The latch mechanism according to claim 1, characterized in that one of the mounting seat (1) and the fixed seat (21) is provided with a positioning pin (11), the other is provided with a positioning hole (211), and the fixed seat (21) and the mounting seat (1) are positioned by the positioning pin (11) and the positioning hole (211).

3. The latch mechanism according to claim 1 or 2, wherein the locking assembly comprises a fixing hole (212) provided on the fixing base (21), a locking screw hole (12) provided on the mounting base (1), and a locking screw (3); the locking screw (3) penetrates through the fixing hole (212) and then is screwed in the locking screw hole (12).

4. A latch mechanism according to claim 3, characterized in that the locking screw (3) comprises a nut (31) and a stud (32) provided at one end of the nut (31), the nut (31) being provided with friction members on its periphery; or

The locking screw (3) further comprises a connecting piece (33), the connecting piece (33) is arranged between the screw cap (31) and the stud (32), and the outer diameter of the connecting piece (33) is larger than the inner diameter of the fixing hole (212).

5. The latch mechanism according to claim 1, wherein the locking assembly comprises an absorbing member (4), the absorbing member (4) is arranged on the fixed seat (21) and can absorb the mounting seat (1); or

The adsorption piece (4) is arranged on the mounting seat (1) and can adsorb the fixed seat (21); or

The adsorption piece (4) can adsorb the mounting seat (1) and the fixed seat (21).

6. A latch mechanism according to claim 5, characterized in that the attraction member (4) comprises a magnet which can attract the mounting (1) and/or the holder (21).

7. The pogo pin mechanism of claim 6, wherein the mounting seat (1) is provided with two first mounting grooves, the fixing seat (21) is provided with two second mounting grooves, the two first mounting grooves are opposite to the two second mounting grooves one by one, and four magnets are respectively disposed in the two first mounting grooves and the two second mounting grooves.

8. A test device, comprising a rack (100), a positioning mechanism (400), a pushing mechanism (300) and the pogo pin mechanism (200) of any one of claims 1 to 7, wherein the positioning mechanism (400) and the pushing mechanism (300) are both disposed on the rack (100), the pogo pin mechanism (200) is disposed at an output end of the pushing mechanism (300), the pushing mechanism (300) is used for pushing the pogo pin mechanism (200) to be close to or far away from the positioning mechanism (400), and the positioning mechanism (400) is used for clamping a workpiece to be tested.

9. The test apparatus according to claim 8, wherein the positioning mechanism (400) comprises a fixed positioning member (410) and a movable positioning member (420), the fixed positioning member (410) being provided to the rack (100) in a position adjustable in a horizontal plane; the movable positioning part (420) is arranged on the rack (100) in a sliding mode and can be close to the fixed positioning part (410) to clamp the workpiece to be detected or be far away from the fixed positioning part (410) to release the workpiece to be detected.

10. The testing apparatus according to claim 8, wherein the pushing mechanism (300) comprises a pushing seat (310) and a pushing assembly (320), the pushing seat (310) is provided on the rack (100) in a vertically adjustable manner, the pushing assembly (320) is provided on the pushing seat (310), and the latch mechanism (200) is provided at an output end of the pushing assembly (320).

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