CN109738675B - Test equipment - Google Patents
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- CN109738675B CN109738675B CN201910143315.4A CN201910143315A CN109738675B CN 109738675 B CN109738675 B CN 109738675B CN 201910143315 A CN201910143315 A CN 201910143315A CN 109738675 B CN109738675 B CN 109738675B
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 239000000523 sample Substances 0.000 claims abstract description 69
- 241001422033 Thestylus Species 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 27
- 230000009471 action Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The invention provides test equipment, which comprises a shell, a fastener moving along an x direction, a driving piece moving along the x direction and a needle measuring seat moving along a y direction; the test equipment realizes the operation of positioning the device and the operation of connecting the probe with the pins of the device based on the movement of the single component of the driving piece by the structural cooperation design of the device seat, the fastener, the probe seat and the driving piece, and has the characteristics of simple structure, simple and convenient operation, high operation efficiency and the like.
Description
Technical Field
The invention relates to the field of device detection, in particular to test equipment.
Background
For the small device with a plurality of pins arranged at the bottom, because the size of the pins is smaller and the distance between the adjacent pins is smaller, the small device needs to be tested by specific test equipment. Basically, when the test equipment detects the small-sized device, the device is firstly required to be positioned, and then a specific test pin is used for contacting with a pin of the device, so that the power-on and data transmission of the device are realized.
The existing test equipment can realize the test operation of the small devices only by driving a plurality of components, and is complex in operation and unfavorable for the rapid test of the devices.
Disclosure of Invention
In order to solve the problems of the existing test equipment, the invention provides the test equipment which has the characteristics of simple structure, simplicity and convenience in operation, high operation efficiency and the like.
Accordingly, the present invention provides a test apparatus comprising a housing, a fastener moving in an x-direction, a driver moving in the x-direction, and a probe mount moving in the y-direction;
A device groove is formed in the y forward surface of the shell, and a measuring needle guide hole is formed in the bottom of the device groove;
The fastener is arranged in the negative direction of the device groove x and comprises a device fastening section and a fastener limiting section; the device fastening section faces the device groove and extends into the device groove along the positive direction x, the fastener limiting section extends along the negative direction y, and a fastener elastic piece in a compressed state is arranged between the negative direction x of the fastener limiting section and the inner side wall of the shell;
The driving piece is arranged in the negative direction of the fastener y and comprises a driving piece limiting section extending in the positive direction of y and a working section protruding in the positive direction of y, which are sequentially arranged in the positive direction of x; the driving piece limiting section is arranged in the positive direction of the fastener limiting section x, and the end surface of the driving piece limiting section is higher than the end surface of the fastener limiting section;
The probe seat is arranged between the device groove and the driving piece, and the bottom surface of the probe seat is contacted with the top surface of the driving piece; a probe extending into the probe guide hole is arranged on the top surface of the probe seat;
And in a contact state of the driving piece limiting section and the fastener limiting section, the minimum distance between the end face of the driving piece limiting section and the device groove is smaller than the minimum distance from the working section to the bottom surface of the probe seat.
In an alternative embodiment, the fastener is moved in the x-direction based on a fastener guide; the fastener guide device is a fastener guide groove arranged on the top surface of the shell; the fastener guide slot communicates with the device slot.
In an alternative embodiment, the driver moves in the x-direction based on a driver guide; the driving piece guiding device is a driving piece guiding groove arranged on the bottom surface of the inner cavity of the shell; the driver guide slot passes through the housing in the negative x-direction.
In an optional implementation manner, the shell extends out of a driving piece limiting top block along the x-direction at one side of the driving piece guiding groove; a rotary clamping piece is arranged at the negative x-direction end of the driving piece; the driving piece limiting top block limits the driving piece to move along the positive direction of x based on the rotary clamping piece.
In an alternative embodiment, the stylus holder moves along the y direction based on the stylus holder guide means; the probe seat guide device is a probe guide seat; the measuring needle guide seat is fixed in the inner cavity of the shell, and a measuring needle seat through groove matched with the measuring needle seat is formed in the middle of the measuring needle guide seat along the y direction.
In an alternative embodiment, the probe comprises a probe sleeve, a probe body, a probe connecting wire and a probe elastic piece; the measuring needle sleeve is embedded into the measuring needle seat along the y direction, the measuring needle body is arranged in the measuring needle sleeve based on the measuring needle elastic piece, the upper end of the measuring needle body stretches into the measuring needle guide hole, and the lower end of the measuring needle body is connected with the measuring needle connecting line.
In an alternative embodiment, the test device further comprises a bearing arranged at the bottom of the probe seat; the stylus holder is in contact with the driving piece based on the bearing.
In an alternative embodiment, the test apparatus further comprises a device holder; the device groove is arranged on the device seat, and the device seat is arranged on the top surface of the shell.
In an alternative embodiment, the test apparatus further comprises a driver spring; and two ends of the elastic piece of the driving piece are respectively connected with the positive end of the driving piece x and the inner wall of the shell.
In an alternative embodiment, the test apparatus further comprises a stylus holder elastic member in a compressed state; and two ends of the needle seat elastic piece are respectively connected with the top surface of the needle seat and the top surface of the inner cavity of the shell.
In an alternative embodiment, the test apparatus further comprises a driver spring; and two ends of the elastic piece of the driving piece are respectively connected with the positive end of the driving piece x and the inner wall of the shell.
An alternative embodiment is characterized in that the stylus is made of tungsten steel, and the wire diameter is between 0.15 mm and 0.3 mm.
The invention provides test equipment, which realizes the operation of positioning a device and the operation of connecting a probe with a pin of the device based on the movement of a single part of a driving part by the structural cooperation design of the device seat, a fastener, the probe seat and the driving part, and has the characteristics of simple structure, simple and convenient operation, high operation efficiency and the like.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic three-dimensional structure of a test apparatus according to an embodiment of the present invention;
FIG. 2 shows a cross-sectional view of a three-dimensional structure of a housing in accordance with an embodiment of the present invention;
FIG. 3 shows a schematic three-dimensional structure of a device mount according to an embodiment of the present invention;
FIG. 4 shows a schematic three-dimensional structure of a fastener according to an embodiment of the present invention;
FIG. 5 shows a partial cross-sectional view of the three-dimensional structure of a stylus holder and stylus guide holder according to an embodiment of the invention;
FIG. 6 shows a perspective schematic view of a stylus according to an embodiment of the invention;
FIG. 7 is a schematic view showing a three-dimensional structure of a driving member according to an embodiment of the present invention;
FIG. 8 shows a right side view, in full section, of a first motion state of a test apparatus according to an embodiment of the present invention;
FIG. 9 shows a right side view, in full section, of a second motion state of a test apparatus according to an embodiment of the present invention;
FIG. 10 shows a right side view, in full section, of a third motion state of a test apparatus according to an embodiment of the present invention;
Fig. 11 is a partially enlarged schematic illustration of a limiting top block of a second driving member according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
FIG. 1 is a schematic three-dimensional structure of a test apparatus according to an embodiment of the present invention, wherein a hidden part of a housing in FIG. 1 is a cross-section of a hatched part in order to show an internal structure of the test apparatus; in addition, in order to more clearly describe the structure and the movement principle of the test equipment, the movement direction of the fastening piece 6 is taken as the x direction, the direction of the fastening piece 6 facing the device seat 2 is taken as the x forward direction, the movement direction of the probe seat 3 is taken as the y direction, the movement direction of the probe seat 3 facing the device seat 2 is taken as the y forward direction, and an x-y plane coordinate system is established.
The embodiment of the invention provides test equipment, which comprises a shell 1, a device seat 2, a probe seat 3, a probe 4, a driving piece 5 and a fastening piece 6. Basically, the device seat 2 is arranged on the top surface of the shell 1, the fastener 6 is arranged on the negative direction of the device seat 2x and moves along the x direction based on a fastener guiding device; the probe seat 3 is arranged on the negative direction of the device seat 2y and moves along the y direction based on a probe seat guiding device; the driving piece 5 is arranged on the negative direction of the needle seat 3y and moves along the x direction based on a driving piece guiding device; the measuring needle 4 penetrates through the measuring needle seat 3 along the y direction, the middle part of the measuring needle 4 is arranged on the measuring needle seat 3, the lower end of the measuring needle extends out of the bottom of the shell 1 and is connected with external electrical equipment, and the upper end of the measuring needle penetrates through the shell 1 and extends into the device seat 2.
Since the test apparatus of the present invention has a plurality of implementation structures, one of the implementation structures will be described below, and the motion principle of the test apparatus will be described with reference to the implementation structure.
Fig. 2 shows a cross-sectional view of a three-dimensional structure of a housing of an embodiment of the present invention, with a hatched section in section. The shell 1 of the embodiment of the invention comprises a top cover 101, a sleeve 102 and a base 103, wherein the top cover 101 and the base 103 are respectively fixed at the top and the bottom of the sleeve 102; in the embodiment of the present invention, the top cover 101, the sleeve 102 and the base 103 are mutually fixed based on screws. At the top of the top cover 101, there is provided a device seat mounting groove 110; the device holder mounting groove 110 is used for mounting the device holder, and is adapted to the peripheral contour of the device holder.
In the negative x-direction of the device holder mounting slot 110, a fastener guide slot 104 is opened in the x-direction for guiding a fastener. To facilitate the installation of fasteners in the fastener guide slots 104, the top surface of the fastener guide slots 104 is open, and after the fasteners are installed in the fastener guide slots 104, the top surface of the fastener guide slots 104 is closed based on a fastener cover plate so that the fasteners can only move along the fastener guide slots 104 in the x-direction.
A wiring hole 107 is arranged in the middle of the base 103 and is used for wiring a measuring needle positioned in the shell 1, and the measuring needle wiring can enable the measuring needle 4 to be electrically connected with external equipment; a driving piece guiding groove 105 is formed on the top surface of the base 103 along the x direction, and one negative end of the driving piece guiding groove 105x passes through the sleeve 102; in addition, in order to realize the limit of the driving element in the x direction, the base 103 extends along the direction of the driving element guiding groove 105, and a driving element limiting top block 106 extends out of one side of the driving element guiding groove 105.
Fig. 3 shows a schematic three-dimensional structure of the device holder 2 according to an embodiment of the present invention. The top surface of the device seat 2 is provided with a device groove 201, and devices are arranged in the device groove 201 during testing; a probe guide hole 202 is arranged at the bottom of the device groove 201; the number and arrangement positions of the pin guide holes 202 correspond to the pin number and pin positions of the device to be tested; further, the device slot 201 passes out of the device seat 2 on the x-negative side, i.e., the side toward the fastener, forming a fastening notch 203 for the fastener to enter and exit; the fastening notch 203 is used for allowing a fastener to slide in and out, so that the fastener can limit a device positioned in the device groove 201, and the gesture of the device is prevented from being changed, and the testing effect is prevented from being influenced.
It should be noted that, basically, the test equipment provided by the invention can realize the function of fixing the device only by arranging the device groove on the top surface of the shell and arranging the fastening notch for the fastener to enter and exit on one side of the device groove facing the fastener. The embodiment of the invention is mainly used for increasing the application range of the test equipment by arranging the device groove in the device seat mode; in specific implementation, the external dimensions of different device seats can be designed to be the same, and are used for being matched with the device seat mounting grooves, and the dimensions of the device grooves arranged in the device seats, the number and the positions of the test guide holes are designed according to different types of devices; through changing different device seats, the test of different devices is realized to increase the applicable device scope of test equipment.
Therefore, when the device groove is arranged on the device seat, the bottom of the device seat can be arranged in a hollowed-out mode, so that the measuring needle guide hole of the device seat is communicated with the inner cavity of the shell, and the measuring needle guide hole is processed at the bottom of the device groove of the device seat; when different probe seats are replaced, the probe can be inserted into the corresponding probe guide hole; when the device slot is disposed directly on the top surface of the housing, the stylus guide hole is disposed on the top surface of the housing.
FIG. 4 shows a schematic three-dimensional structure of a fastener according to an embodiment of the present invention. The fastener 6 of the embodiment of the invention comprises a device fastening section 601 and a fastener limiting section 602 which are arranged in an orthogonal manner; referring to fig. 1 and 2, the device fastening section 601 of the fastener 6 according to the embodiment of the present invention is fitted in the fastener limiting groove of the housing, and can only move in the x direction, and the fastener limiting section 602 extends in the y direction in a negative direction, so as to form a limit with the driving member; wherein, for driving and resetting the fastener 6, a fastener elastic member 603 is provided in the x-direction of the fastener 6; the specific function of the fastener spring 603 will be described later in connection with the overall operation of the test apparatus.
Specifically, the fastener guiding device in the embodiment of the invention is the fastener limiting groove arranged on the top cover of the shell in the embodiment of the invention, and the fastener limiting groove (including the fastener cover plate) limits the fastener 6 and only allows the fastener 6 to move along the x direction; after the device seat is fixed in the device seat mounting groove, the fastener limiting groove is communicated with the device groove through the fastening notch, and the device fastening section 601 of the fastener 6 can extend into the device groove to clamp a device arranged in the device groove, so that the gesture of the device in the device groove is maintained, and the device is prevented from falling out of the device groove.
Fig. 5 shows a partial cross-sectional view of the three-dimensional structure of the stylus holder and stylus guide holder according to an embodiment of the invention, wherein the hatched portion is a cross-section. The stylus holder 3 according to the embodiment of the present invention moves in the y direction based on the stylus holder guide, which in the embodiment of the present invention is the stylus holder 300. Referring to FIG. 1 of the drawings, a stylus guide holder 300 is fixed on the inside wall of the sleeve; the middle part of the needle guide seat 300 is provided with a needle seat through groove which is adapted to the peripheral outline of the needle seat 3 along the y direction, and the needle seat 3 is matched in the needle seat through groove and slides along the needle seat through groove. The bottom surface of the needle measuring seat 3 keeps contact with the top surface of the driving piece under the action of gravity, and the movement height of the needle measuring seat 3 is controlled by the height change of the top surface at different positions of the driving piece; in order to reduce friction between the bottom of the probe seat 3 and the driving member, the embodiment of the invention is provided with a bearing 303 at the bottom of the probe seat 3, and the probe seat 3 is in contact with the driving member based on the bearing 303.
An auxiliary guide groove 304 is also formed in the negative direction of the needle guide seat 300 x; because the fastener limiting section 602y of the fastener 6 has a larger length, the auxiliary guide groove 304 can be matched with the fastener limiting section 602, so that the guide effect of the fastener 6 is further enhanced, and the movement direction of the fastener 6 is ensured to be a preset direction.
In addition, considering that the test equipment can incline and turn over during carrying, in order to avoid collision between the top surface of the probe seat and the top surface of the shell and breakage of the probe, the embodiment of the invention is provided with the probe seat elastic piece 302 on the top surface of the probe seat 3; the elastic piece 302 of the probe seat is in a compressed state, two ends of the elastic piece are respectively arranged between the top surface of the probe seat 3 and the inner wall of the top cover of the shell, and the bottom surface of the probe seat can be tightly attached to the top surface of the driving piece when the testing equipment is in any posture.
A plurality of measuring needle holes 301 are formed in the middle of the measuring needle seat 3 along the y direction; in general, the number of pins of the device is generally 8 or less than 8, and in order to adapt to different types of devices, the number of the needle measuring holes 301 can be set to 9, and the needle measuring holes are arranged on the needle measuring seat 3 in a shape of a Chinese character 'tian'; the number of the measuring needle holes 301 can be set to 8, and the measuring needle holes are uniformly and symmetrically distributed on the measuring needle seat 3 along the four sides of the rectangle. In specific implementations, the number and placement of the pin holes 301 may be set according to the device to be tested, and the embodiment of the present invention provides only one of them.
Fig. 6 shows a perspective schematic view of a stylus according to an embodiment of the invention. Because the measuring pin of the embodiment of the invention needs to move along the y direction, in order to ensure that the measuring pin can be stably connected with the pin of the device, an interaction force needs to exist between the measuring pin and the pin, so that the measuring pin can be tightly attached to the pin. In addition, considering that the measuring needle is made of tungsten steel, the wire diameter is between 0.15mm and 0.3mm, the stress in the axial direction can be balanced through certain bending, and the stress in the radial direction easily causes the breakage of the measuring needle, so that the measuring needle cannot be directly fixed on the measuring needle seat. Specifically, referring to fig. 6 of the drawings, the stylus 4 according to the embodiment of the present invention includes a stylus housing 403, a stylus body 401, a stylus connecting line 404, and a stylus elastic member 402. In the embodiment of the invention, the needle sleeve 403 is locked in the needle hole 301 of the needle seat 3, the needle body 401 is in sliding fit in the needle sleeve 403, and the limiting in the vertical direction is performed based on the needle elastic piece 402; the upper end of the probe body 401 extends into the probe guide hole, and the lower end is connected with a probe connecting line 404 inside the probe sleeve 403; the lower end of the probe connecting wire 404 extends out of the wiring hole of the base and is connected with external equipment.
Referring to fig. 5 and 6 of the drawings, in the preparation stage of the test apparatus, the pin bodies 401 having the same number as the pins of the device need to be inserted into the corresponding pin guide holes; when the test equipment works, the probe guide seat 300 is fixed, the probe seat 3 slides along the probe seat through groove, and the probe body 401 is driven to synchronously move based on the probe sleeve 403; when the stylus holder 3 moves upwards, the top end of the stylus body 401 is contacted with a device in the device groove; at the moment that the top end of the probe body 401 is contacted with the device, no interaction force exists between the probe body 401 and the device; when the needle stand 3 continues to move upwards, the needle body 401 is limited by the device and cannot move upwards, the needle elastic piece 402 is compressed and corresponds to an upward reaction force given to the needle body 401, so that the top end of the needle body 401 is tightly attached to the device, and the contact effect of the needle body 401 and the pins of the device is guaranteed.
Fig. 7 shows a schematic three-dimensional structure of a driving member according to an embodiment of the present invention, and the three-dimensional structure of the base is also shown in fig. 7 because the driving member guiding device is provided on the base. The driving piece 5 of the embodiment of the invention is rod-shaped, and correspondingly, the driving piece guiding device is a driving piece guiding groove 105 arranged on the top surface of the base; under the limitation of the driving piece guide groove 105, the driving piece 5 only translates along the x positive direction, the x negative direction and the y positive direction for three degrees of freedom; on the one hand, the driving piece 5 only receives the external forces in the directions of x-negative direction, x-positive direction and y-negative direction during the movement process, so that the driving piece 5 can be kept in the driving piece guide groove 105 without separation; in addition, since the driving element 5 passes through the housing, the sleeve of the housing can limit the y direction of the driving element 5 to a certain extent, so that the driving element 5 can be ensured not to be separated from the driving element guide groove 105.
The two ends of the driving piece 5 are respectively an overhanging end and a limiting end, the overhanging end stretches out from the shell, and a rotary clamping piece 501 is arranged on the overhanging end; the limiting end is provided with a driving piece elastic piece 504, one end of the driving piece elastic piece 504 is connected with the driving piece, and the other end is connected with the sleeve. The driving member 5 has a plurality of different driving modes according to different arrangement modes of the driving member elastic member 504, and the following description will be made with reference to the overall operation principle of the test apparatus.
The driving piece 5 is also provided with a driving piece limiting section 502 and a working section 503; the driving piece limiting section 502 is formed by extending along the positive direction y; the driving piece limiting section 502 is arranged in the positive direction of the fastener limiting section x, and the end surface height of the driving piece limiting section 502 is higher than that of the fastener limiting section; the working section 503 protrudes along the y forward direction and is positioned in the x forward direction of the driving part limiting section 502; when the bottom of the stylus holder contacts the top surface of the working section 503, the top end of the stylus body contacts the device in the device groove. It should be noted that in order to ensure a smooth movement of the driving member 5, the top surface of the working section 503 should be in a smooth transition with the top surface of the rest of the driving member 5.
Fig. 8 shows a full-section right view of a first movement state of the test device according to an embodiment of the present invention, fig. 9 shows a full-section right view of a second movement state of the test device according to an embodiment of the present invention, and fig. 10 shows a full-section right view of a third movement state of the test device according to an embodiment of the present invention.
In combination with the above description of the parts, in a specific implementation, the parts of the test device participating in the operation of the embodiment of the invention comprise a driving piece 5, a fastening piece 6, a probe seat 3 and a probe 4; under the limit of the corresponding guiding device, the driving piece 5 and the fastening piece 6 can only move along the x direction, and the probe seat 3 and the probe 4 can only move along the y direction; in any state of motion, the stylus holder 3 is in contact with the top surface of the driving member 5 based on bearings 303.
When the test equipment is in the first motion state, the device 10 is arranged in the device seat 2, and the device seat 2 is arranged on the shell; the rotary clamping piece 501 arranged on the driving piece 5 rotates to one side of the driving piece limiting top block 106 and is clamped on the driving piece limiting top block 106; at this time, under the driving of the driving piece limiting section 502, the fastener 6 is limited to the negative side of the fastener travel x based on the driving of the fastener limiting section 602, and at this time, the distance from the end face of the device fastening section 601 to the device 10 is a; the elastic fastener 603 is in a compressed state, and two ends of the elastic fastener are respectively connected between the inner wall of the sleeve 102 and the fastener limiting section 602 of the fastener 6; the needle measuring seat 3 is pressed on the top surface of the non-working section of the driving piece 5 under the action of gravity and the needle measuring seat elastic piece 302, at this time, the distance between the working section and the bottom surface of the bearing is b, and the top end of the needle measuring 4 is positioned in the needle measuring guide hole and separated from the bottom surface of the device 10.
The rotary clamping piece 501 is rotated, so that the rotary clamping piece 501 is separated from the driving piece limiting top block 106, the driving piece 5 is driven to move along the x positive direction by a distance a, and the testing equipment is changed from the first motion state to the second motion state. When the testing equipment is in the second motion state, the end face of the device fastening section 601 of the fastener 6 is in contact with the device 10, and the device 10 is pressed into the device groove under the action of the fastener elastic piece 603 in the compressed state; the driving piece limiting section 502 and the fastening piece limiting section 602 are separated from each other, and no interaction force exists between the driving piece limiting section and the fastening piece limiting section; the needle stand 3 is gradually transited from the non-working section to the working section based on the bearing 303, and the tip of the needle 4 is gradually moved upward.
The drive 5 continues to move in the x-direction and the test setting switches from the second to the third movement when the stylus holder 3 is in contact with the work section 503 based on the bearing 303. When the test equipment is in the third motion state, the probe seat 3 is at the highest point, the probe 4 is in contact with the pins on the bottom surface of the device 10, the interaction force is maximum, and a stable connection relationship is formed between the probe 4 and the pins of the device 10.
The operation principle of the testing equipment is combined, so that the testing equipment needs to be subjected to two operation processes of device fixing operation and needle positioning operation in sequence to realize the detection of the devices; in the embodiment of the invention, in order to ensure that the device fixing operation is finished before the needle positioning operation, in the state that the fastener limiting section of the fastener is contacted with the driving piece limiting section of the driving piece, the minimum distance between the end surface of the fastener limiting section and the device groove (namely, the distance between the end surface of the fastener limiting section and the device) is smaller than the minimum distance between the working section and the bottom surface of the needle seat (namely, the distance between the working section and the negative normal line of the bearing y), so that the device is clamped by the end surface of the fastener limiting section before the needle moves to the highest point.
It should be noted that, in fig. 6, fig. 7 and fig. 8 of the accompanying drawings, the driving member elastic member 504 is also labeled, and in the embodiment of the present invention, the driving member elastic member 504 is not necessary, and by setting the driving member elastic member 504, the driving manner of the test apparatus can be simplified, so that the operation difficulty and the operation time of the apparatus can be saved. Specifically, with respect to the direction and magnitude of the elastic force of the driving member elastic member 504, two arrangements of the driving member elastic member 504 are provided for reference in the embodiments of the present invention.
Embodiment one:
the first way to arrange the driving member elastic member 504 is that the driving member elastic member 504 is always in a stretched state during the whole movement of the driving member.
Referring to fig. 8 of the drawings, in the first state, the test apparatus remains in a stationary state as a whole due to the limitation of the rotary stopper 501; when the rotation blocking piece 501 is separated from the limit, the driving piece 5 can move forward along x under the driving of the elastic piece 504 under the condition of non-manual driving; the test equipment automatically goes through the second state and finally changes to the third state.
Embodiment two:
The second arrangement of the driving member elastic member 504 is that the driving member elastic member 504 is always in a compressed state during the whole movement of the driving member, and in the first state, the elastic force F1 of the driving member elastic member 504 is equal to the elastic force F2 of the fastener elastic member 603.
Fig. 11 is a schematic diagram showing a partial enlarged view of a driving member limiting top block according to an embodiment of the present invention, in which the driving elastic member 504 is disposed in a manner that the driving member limiting top block 106 needs to be changed correspondingly, specifically, on the basis of the test apparatus structure shown in fig. 10 of the accompanying drawings, a clamping groove is opened on a position of the driving member limiting top block 106 corresponding to the rotating clamping member 501, so that the rotating clamping member 501 can clamp.
When the test equipment is in the first state and the second state, the test equipment needs to be switched to the third state by manually driving the driving piece 5; when the test apparatus is in the third state, the rotary latch 501 is rotationally latched into the latch slot, so that the driving of the driving member 5 can be stopped, and the driving member 5 is kept in the third state under the action of the rotary latch 501. When the device 10 needs to be taken out, the rotary clamping piece 501 is separated from the clamping groove, and the driving piece 5 is automatically reset to the first state under the driving of the driving piece elastic piece 504.
The embodiment of the invention provides test equipment, which realizes the operation of positioning a device and the operation of connecting a probe with a pin of the device based on the movement of a single part of a driving part by the structural cooperation design of the device seat, a fastener, the probe seat and the driving part, and has the characteristics of simple structure, simple and convenient operation, high operation efficiency and the like.
The foregoing has described in detail a testing device provided by embodiments of the present invention, and specific examples have been set forth herein to illustrate the principles and embodiments of the present invention, the above examples being provided only to assist in understanding the methods of the present invention and their core ideas; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (11)
1. The testing equipment is characterized by comprising a shell, a fastener moving along an x direction, a driving piece moving along the x direction and a needle measuring seat moving along a y direction, wherein the direction of the fastener facing the device seat is x positive direction, the direction of the needle measuring seat is y positive direction, and the direction of the needle measuring seat facing the device seat is y positive direction;
A device groove is formed in the y forward surface of the shell, and a measuring needle guide hole is formed in the bottom of the device groove;
The fastener is arranged in the negative direction of the device groove x and comprises a device fastening section and a fastener limiting section; the device fastening section faces the device groove and extends into the device groove along the positive direction x, the fastener limiting section extends along the negative direction y, and a fastener elastic piece in a compressed state is arranged between the negative direction x of the fastener limiting section and the inner side wall of the shell;
The driving piece is arranged in the negative direction of the fastener y and comprises a driving piece limiting section extending in the positive direction of y and a working section protruding in the positive direction of y, which are sequentially arranged in the positive direction of x; the driving piece limiting section is arranged in the positive direction of the fastener limiting section x, and the end surface of the driving piece limiting section is higher than the end surface of the fastener limiting section;
The probe seat is arranged between the device groove and the driving piece, and the bottom surface of the probe seat is contacted with the top surface of the driving piece; a probe extending into the probe guide hole is arranged on the top surface of the probe seat;
The testing equipment is required to sequentially pass through two operation processes of device fixing operation and measuring needle positioning operation, and in the contact state of the driving piece limiting section and the fastener limiting section, the minimum distance between the end surface of the driving piece limiting section and a device groove is smaller than the minimum distance from the operation section to the bottom surface of the measuring needle seat;
the fastener moves along the x direction based on the fastener guiding device, the driving piece moves along the x direction based on the driving piece guiding device, the probe seat moves along the y direction based on the probe seat guiding device, and the probe moves along the y direction along with the probe seat.
2. The test apparatus of claim 1, wherein the fastener guide is a fastener guide slot provided on the top surface of the housing; the fastener guide slot communicates with the device slot.
3. The test apparatus of claim 1, wherein the driver guide means is a driver guide slot provided on a bottom surface of the housing interior cavity; the driver guide slot passes through the housing in the negative x-direction.
4. The test apparatus of claim 3, wherein said housing extends in the x-direction beyond a drive limiting top block on one side of said drive guide slot; a rotary clamping piece is arranged at the negative x-direction end of the driving piece; the driving piece limiting top block limits the driving piece to move along the positive direction of x based on the rotary clamping piece.
5. The test apparatus of claim 1, wherein the stylus holder guide means is a stylus holder; the measuring needle guide seat is fixed in the inner cavity of the shell, and a measuring needle seat through groove matched with the measuring needle seat is formed in the middle of the measuring needle guide seat along the y direction.
6. The test apparatus of claim 1, wherein the stylus comprises a stylus housing, a stylus body, a stylus connection line, and a stylus elastic member; the measuring needle sleeve is embedded into the measuring needle seat along the y direction, the measuring needle body is arranged in the measuring needle sleeve based on the measuring needle elastic piece, the upper end of the measuring needle body stretches into the measuring needle guide hole, and the lower end of the measuring needle body is connected with the measuring needle connecting line.
7. The test apparatus of claim 1, further comprising a bearing disposed at the bottom of the stylus holder; the stylus holder is in contact with the driving piece based on the bearing.
8. The test apparatus of claim 1, wherein the test apparatus further comprises a device mount; the device groove is arranged on the device seat, and the device seat is arranged on the top surface of the shell.
9. The test apparatus of claim 1, wherein the test apparatus further comprises a driver spring; and two ends of the elastic piece of the driving piece are respectively connected with the positive end of the driving piece x and the inner wall of the shell.
10. The test apparatus of claim 1, further comprising a stylus holder spring in a compressed state; and two ends of the needle seat elastic piece are respectively connected with the top surface of the needle seat and the top surface of the inner cavity of the shell.
11. The test apparatus of claim 1, wherein the stylus is tungsten steel and has a wire diameter between 0.15 mm and 0.3 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910143315.4A CN109738675B (en) | 2019-02-26 | 2019-02-26 | Test equipment |
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| CN201910143315.4A CN109738675B (en) | 2019-02-26 | 2019-02-26 | Test equipment |
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| CN109738675B true CN109738675B (en) | 2024-05-14 |
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| CN107647796B (en) * | 2016-07-25 | 2021-01-05 | 漳州灿坤实业有限公司 | Frying and roasting equipment with probe |
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| US4352061A (en) * | 1979-05-24 | 1982-09-28 | Fairchild Camera & Instrument Corp. | Universal test fixture employing interchangeable wired personalizers |
| US4774462A (en) * | 1984-06-11 | 1988-09-27 | Black Thomas J | Automatic test system |
| KR20030072050A (en) * | 2002-03-05 | 2003-09-13 | 파츠닉(주) | Measuring prove device for making a condenser |
| CN206601468U (en) * | 2016-11-15 | 2017-10-31 | 广州视源电子科技股份有限公司 | Contact power supply testing device |
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