SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multilayer location test fixture solves above technical problem.
To achieve the purpose, the utility model adopts the following technical proposal: a multi-layer positioning test fixture comprises:
a work table;
the lower detection mechanism comprises a base arranged on the workbench and a first conductor assembly arranged in the base; the upper end part of the first conductor assembly is exposed out of the base;
the upper detection mechanism is arranged above the lower detection mechanism and comprises a detection supporting plate and a second conductor assembly arranged in the detection supporting plate; the lower end face of the detection supporting plate is provided with a containing groove for containing a workpiece, and the lower end part of the second conductor assembly extends into the containing groove;
and one end of the lifting mechanism is abutted against the detection supporting plate and is used for pressing the detection supporting plate to move downwards along the vertical direction so as to enable two end faces of the workpiece to be abutted against the first conductor assembly and the second conductor assembly respectively.
Optionally, the lifting mechanism comprises:
the guide assembly is arranged on the workbench;
the connecting plate is connected to the guide assembly in a sliding mode in the vertical direction;
the driving end of the first driving piece is connected with the connecting plate and used for driving the connecting plate to linearly move along the vertical direction;
the compression column is arranged on the lower end surface of the connecting plate, the lower end surface of the compression column is abutted with the detection supporting plate,
optionally, the positioning device further comprises a positioning mechanism mounted on the connecting plate, wherein the positioning mechanism comprises a positioning mounting plate and a first positioning assembly mounted on the positioning mounting plate;
the first positioning assembly comprises a fixed block, a plurality of positioning lugs are arranged on the lower end face of the fixed block, positioning holes are formed in the positions, corresponding to the positioning lugs, of the detection supporting plate, and the positioning lugs are inserted into the positioning holes.
Optionally, the positioning mechanism further comprises a second positioning assembly;
the second positioning assembly comprises a second driving piece and a pressing block connected to the fixed block in a sliding mode along the vertical direction, and the driving end of the second driving piece is connected with the pressing block and used for driving the pressing block to move along the vertical direction;
the pressing block is provided with a first connector, the lower end part of the first connector is exposed out of the lower end face of the pressing block, the upper end face of the supporting plate is provided with a second connector connected with the second conductor assembly, and the first connector is connected with the second connector in an inserted mode.
Optionally, a sliding groove is formed in the middle of the fixing block in the vertical direction, and the pressing block is connected in the sliding groove in a sliding manner;
the upper end of briquetting is provided with the spacing platform that extends to its both sides portion, is provided with the first buffer spring of a plurality of between spacing platform and the fixed block.
Optionally, the positioning mechanism further comprises a jacking assembly;
the jacking assembly comprises a shaft sleeve, a jacking spring and a pin column, the shaft sleeve is arranged on the positioning mounting plate, a shaft hole is formed in the shaft sleeve along the vertical direction, and the pin column is connected in the shaft hole in a sliding manner; the lower end parts of the pin columns are exposed out of the shaft holes and are abutted with the detection supporting plate;
the jacking spring is arranged in the shaft hole, and two end parts of the jacking spring are respectively connected with the pin column and the positioning mounting plate.
Optionally, the upper detection mechanism further includes a first PCB; the second conductor assembly is arranged on the lower end face of the first PCB;
the detection supporting plate comprises a first supporting plate and a second supporting plate, a positioning pin is arranged on the upper end face of the first supporting plate, and the second supporting plate is detachably connected to the first supporting plate through the positioning pin;
a first groove body is formed in the second supporting plate, and the first PCB is arranged in the first groove body;
the first supporting plate is provided with a second groove body corresponding to the first groove body in a penetrating mode, and the first groove body is communicated with the second groove body to form an accommodating groove.
Optionally, the device further comprises a pushing-out mechanism;
the push-out mechanism comprises a sliding block connected to the workbench in a sliding mode along a first direction, and the middle of the sliding block is provided with a clearance groove used for the clearance lower detection mechanism; the first direction is the length direction of the workbench;
the upper end face of the sliding block is provided with a guide pillar along the vertical direction, and the detection supporting plate is connected to the guide pillar along the vertical direction in a sliding mode.
Optionally, a pin is arranged between the detection supporting plate and the sliding block, and the detection supporting plate is in sliding connection with the pin;
the pin is sleeved with a return spring, and two ends of the return spring are respectively connected with the detection supporting plate and the sliding block.
Optionally, the pushing mechanism further comprises a handle, and the handle is connected with one end of the sliding block.
Compared with the prior art, the utility model discloses following beneficial effect has: when the device works, a carrier plate with a workpiece is placed in the accommodating groove, the lifting mechanism runs to press the detection carrier plate to move downwards along the vertical direction, the carrier plate and the workpiece are driven to move downwards to the two end faces of the workpiece to be respectively abutted against the first conductor assembly and the second conductor assembly, and the workpiece is clamped and positioned; meanwhile, the first conductor assembly, the workpiece and the second conductor assembly are electrically conducted, so that the workpiece is detected; this test fixture can be through the tight work piece of conductor subassembly clamp that sets up from top to bottom, and the work piece is fully positioned, and the work piece takes place to rock when avoiding the test, improves and detects the precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 the drawings without inventive exercise.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
FIG. 1 is a schematic structural view of a multi-layer positioning test fixture with an open lifting mechanism;
FIG. 2 is a schematic structural view of a multi-layer positioning test fixture with a lifting mechanism closed;
FIG. 3 is a schematic structural view of the pushing mechanism of the multi-layer positioning test fixture;
FIG. 4 is a schematic structural diagram of a detection portion of the multi-layer positioning test fixture;
FIG. 5 is a schematic top view of a connecting plate of the multi-layer positioning test fixture;
FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic structural view of an upper detector and a push-out mechanism of the multi-layer positioning test fixture;
FIG. 8 is a schematic structural view of a lower detection mechanism of the multi-layer positioning test fixture;
FIG. 9 is a schematic bottom view of the upper detecting mechanism of the multi-layer positioning testing fixture;
FIG. 10 is a schematic structural diagram of a positioning mechanism of a multi-layer positioning test fixture;
FIG. 11 is a schematic bottom view of a positioning mechanism of the multi-layer positioning test fixture;
fig. 12 is a schematic cross-sectional view of a tightening assembly of the multi-layer positioning test fixture.
Illustration of the drawings: a work table 1;
the lower detection mechanism 2, the base 21 and the first conductor assembly 22;
the upper detection mechanism 3, the detection supporting plate 31, the second conductor assembly 32, the accommodating groove 33, the positioning hole 311, the second connector 34, the first PCB 35, the first supporting plate 312, the second supporting plate 313, the positioning pin 314, the lifting mechanism 4, the guide assembly 41, the connecting plate 42, the first driving member 43 and the pressing column 44;
the positioning mechanism 5, the positioning mounting plate 51, the first positioning component 52, the fixed block 521, the positioning lug 522, the second positioning component 53, the pressing block 532, the second driving component 531, the first connector 533, the sliding chute 523, the limiting table 534, the first buffer spring 54, the jacking component 55, the shaft sleeve 551, the jacking spring 552, the pin 553 and the second PCB 56;
the pushing mechanism 6, the slide block 61, the clearance groove 62, the guide post 63, the handle 64, the pin 65 and the return spring 66.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment of the utility model provides a multilayer positioning test fixture, include:
a work table 1;
the lower detection mechanism 2 comprises a base 21 arranged on the workbench 1 and a first conductor assembly 22 arranged in the base 21; the upper end of the first conductor assembly 22 is exposed out of the base 21;
the upper detection mechanism 3 is arranged above the lower detection mechanism 2 and comprises a detection supporting plate 31 and a second conductor assembly 32 arranged in the detection supporting plate 31; the lower end surface of the detection supporting plate 31 is provided with a containing groove 33 for containing a workpiece, and the lower end part of the second conductor assembly 32 extends into the containing groove 33; the detection supporting plate 31 plays a role of bearing a workpiece;
and one end of the lifting mechanism 4 is abutted against the detection supporting plate 31 and is used for pressing the detection supporting plate 31 to move downwards along the vertical direction so that two end faces of the workpiece are abutted against the first conductor component 22 and the second conductor component 32 respectively.
Referring to fig. 10, the second conductor element 32 is a ring-shaped conductive ring;
the workpiece in the scheme comprises a support plate and an electronic watch (to be detected), wherein the electronic watch is arranged on the support plate; during detection, the upper detection mechanism 3 moves downwards, the first conductor assembly 22 and the second conductor assembly 32 are pressed and fixed on a workpiece respectively, and the workpiece is conducted with the electronic watch to perform test operation.
The working principle of the invention is as follows: during work, a carrier plate with a workpiece is placed in the accommodating groove 33, the lifting mechanism 4 operates to press the detection supporting plate 31 to move downwards along the vertical direction, the carrier plate and the workpiece are driven to move downwards to two end faces of the workpiece to be respectively abutted against the first conductor assembly 22 and the second conductor assembly 32, and clamping and positioning of the workpiece are achieved; meanwhile, the first conductor assembly 22 and the workpiece are electrically conducted to the second conductor assembly 32, so that the workpiece is detected; compared with the testing device in the prior art, the testing jig can clamp the workpiece through the upper and lower conductor assemblies, fully position the workpiece, avoid the workpiece from shaking during testing, and improve the detection precision.
In the present embodiment, the lifting mechanism 4 includes:
a guide assembly 41 mounted on the table 1;
the connecting plate 42 is connected to the guide assembly 41 in a sliding mode along the vertical direction;
the first driving piece 43 is arranged on the workbench 1, and the driving end of the first driving piece 43 is connected with the connecting plate 42 and used for driving the connecting plate 42 to linearly move along the vertical direction;
the pressing column 4 and the pressing column 44 are arranged on the lower end face of the connecting plate 42, and the lower end face of the pressing column 44 is in contact with the detection supporting plate 31.
As shown in fig. 1, the first driving member 43 is a lifting cylinder, and a piston rod of the lifting cylinder is connected to the connecting plate 42; in operation, the first driving member 43 operates to drive the connecting plate 42 and the pressing column 44 to move in the vertical direction, and the pressing column 44 drives the upper detection mechanism 3 to move downward in the vertical direction.
Wherein. The guiding component 41 includes a plurality of guiding posts, which are respectively disposed at four corners of the outer side of the upper detecting mechanism 3.
Further, the multilayer positioning test fixture further comprises a positioning mechanism 5 mounted on the connecting plate 42, the positioning mechanism 5 comprises a positioning mounting plate 51, and a first positioning assembly 52 mounted on the positioning mounting plate 51;
the first positioning assembly 52 includes a fixing block 521, a plurality of positioning protrusions 522 are disposed on a lower end surface of the fixing block 521, a positioning hole 311 is disposed on the detection supporting plate 31 corresponding to the positioning protrusions 522, and the positioning protrusions 522 are inserted into the positioning hole 311.
Further illustrated, the positioning mechanism 5 further includes a second positioning assembly 53;
the second positioning assembly 53 comprises a second driving piece 531 and a pressing block 532 connected to the fixed block 521 in a sliding manner along the vertical direction, and the driving end of the second driving piece 531 is connected with the pressing block 532 and is used for driving the pressing block 532 to move along the vertical direction;
the pressing block 532 is provided with a first connector 533, the lower end of the first connector 533 is exposed out of the lower end surface of the pressing block 532, the upper end surface of the detection supporting plate 31 is provided with a second connector 34 connected with the second conductor assembly 32, and the first connector 533 is inserted into the second connector 34.
Referring to fig. 3, the positioning mechanism 5 is used for positioning the upper detecting mechanism 3, the lifting mechanism 4 moves downward to drive the positioning mechanism 5 to synchronously press down, the positioning protrusion 522 is firstly abutted against the detecting supporting plate 31, and the positioning protrusion 522 is inserted into the positioning hole 311; the first positioning component 52 functions as a preliminary positioning (rough positioning) of the upper detection mechanism 3;
after the primary positioning, the second positioning assembly 53 works, that is, the second driving element 531 is started to drive the pressing block 532 to move downwards, the first connector 533 is inserted into the second connector 34, and the secondary positioning (fine positioning) of the upper detection mechanism 3 is realized;
in the scheme, the first positioning assembly 52 and the second positioning assembly 53 are matched to realize accurate positioning of the upper detection mechanism 3.
Further, a sliding groove 523 is formed in the middle of the fixed block 521 along the vertical direction, and the pressing block 532 is slidably connected in the sliding groove 523;
the upper end of the pressing block 532 is provided with a limiting table 534 extending to two sides of the pressing block, and a plurality of first buffer springs 54 are arranged between the limiting table 534 and the fixing block 521.
As shown in fig. 6, when the pressing block 532 slides downward along the sliding groove 523, the first buffer spring 54 plays a role of elastic buffering, so as to prevent the pressing block 532 from damaging the upper detection mechanism 3.
As a preferable solution of this embodiment, the positioning mechanism 5 further includes a tightening assembly 55;
the jacking assembly 55 comprises a shaft sleeve 551, a jacking spring 552 and a pin 553, wherein the shaft sleeve 551 is installed on the positioning installation plate 51, the shaft sleeve 551 is provided with a shaft hole along the vertical direction, and the pin 553 is connected in the shaft hole in a sliding way; the lower end of the pin 553 is exposed out of the shaft hole and abuts against the detection support plate 31;
a jacking spring 552 is installed in the shaft hole, and both ends of the jacking spring 552 are connected to the pin 553 and the positioning mounting plate 51, respectively.
Wherein, the tightening component 55 plays a role of pre-pressing the detecting supporting plate 31, and the tightening spring 552 provides a downward elastic force to act on the detecting supporting plate 31 to tighten the detecting supporting plate 31, so as to facilitate the positioning of the first positioning component 52 and the second positioning component 53.
In the present embodiment, the upper detection mechanism 3 further includes a first PCB board 35; the second conductor assembly 32 is disposed on the lower end surface of the first PCB board 35;
the detection supporting plate 31 comprises a first supporting plate 312 and a second supporting plate 313, wherein the upper end surface of the first supporting plate 312 is provided with a positioning pin 314, and the second supporting plate 313 is detachably connected to the first supporting plate 312 through the positioning pin 314; namely, the second support plate 313 is connected to the positioning pin 314 in a sliding manner in the vertical direction;
a first groove body is formed on the second supporting plate 313, and the first PCB 35 is arranged in the first groove body;
a second slot is formed in the first supporting plate 312 at a position corresponding to the first slot, and the first slot and the second slot are through to form the accommodating slot 33.
Optionally, a magnetic part is disposed on the first supporting plate 312, and the magnetic part is magnetically connected to the second supporting plate 313.
As shown in fig. 7, the first and second support plates 312 and 313 are spaced apart from each other in the up-down direction; when the workpiece is mounted, the second pallet 313 is slid vertically upward to make the detection pallet 31 in an open state, and the workpiece is placed between the first pallet 312 and the second pallet 313; the first supporting plate 312 is magnetically connected to the second supporting plate 313, and the workpiece is pressed by the second supporting plate 313, so that the workpiece is accommodated in the accommodating groove 33.
It should be noted that, a second PCB 56 is further installed in the positioning mechanism 5, and the first connector 533 is connected to the second connector 34 to achieve conduction between the first PCB 35 and the second PCB 56, so as to transmit information detected by the first conductor assembly 22 and the second conductor assembly 32 to the second PCB 56, so as to derive data.
In this embodiment, the multi-layer positioning test fixture further includes a pushing mechanism 6;
the pushing mechanism 6 comprises a sliding block 61 connected to the workbench 1 in a sliding manner along a first direction, and the middle part of the sliding block 61 is provided with a clearance groove 62 for avoiding the lower detection mechanism 2; the first direction is the length direction of the workbench 1;
the upper end surface of the slide block 61 is provided with a guide post 63 along the vertical direction, and the detection supporting plate 31 is connected on the guide post 63 along the vertical direction in a sliding manner.
Preferably, the push-out mechanism 6 further includes a handle 64, and the handle 64 is connected to one end portion of the slider 61.
A detection space is arranged between the lifting mechanism 4 and the lower detection mechanism 2, and the upper detection mechanism 3 is arranged in the detection space in a sliding manner;
fig. 3 is a schematic structural view of the pushing mechanism 6 in the pushing state; when the device works, the handle 64 is pulled to enable the sliding block 61 to slide out along the first direction, so that the upper detection mechanism 3 is driven to slide out of the detection space;
the upper detection mechanism 3 is pushed out to facilitate replacement and attachment of the workpiece, and the upper detection mechanism 3 is pushed in to detect the workpiece.
In this embodiment, a pin 65 is disposed between the detection supporting plate 31 and the slider 61, and the detection supporting plate 31 is slidably connected to the pin 65;
the pin 65 is sleeved with a return spring 66, and two end parts of the return spring 66 are respectively connected with the detection supporting plate 31 and the sliding block 61.
As shown in fig. 7, when the lifting mechanism 4 drives the upper detection mechanism 3 to move downward along the vertical direction, the return spring 66 is compressed, and the return spring 66 has upward elastic potential energy; when the lifting mechanism 4 stops operating, the return spring 66 can push the upper detection mechanism 3 to return for the next workpiece cycle.
With reference to fig. 1 to 12, the specific working flow of the present solution is as follows:
firstly, the pushing mechanism 6 pushes out, the second supporting plate 313 slides upwards along the vertical direction, the detection supporting plate 31 is in an open state, the workpiece is placed between the first supporting plate 312 and the second supporting plate 313, the first supporting plate 312 and the second supporting plate 313 are connected in a magnetic attraction mode, the workpiece is pressed through the second supporting plate 313, and the workpiece is accommodated in the accommodating groove 33;
then, the pushing mechanism 6 is pushed to be placed on the lifting mechanism 4 and the lower detection mechanism 2 for positioning; the positioning steps are as follows:
in the first layer positioning, the lifting mechanism 4 operates to drive the connecting plate 42 to descend, so that the lower end surface of the pressure column 44 is abutted against the detection supporting plate 31, and the detection supporting plate 31 is initially positioned; the lifting mechanism continues to operate, so that the jacking component 55 is abutted against the detection supporting plate 31 to jack the detection supporting plate 31 tightly; thereby realizing the pressing of the detection supporting plate 31;
positioning the second layer, wherein the lifting mechanism 4 continues to operate, the pressing column 44 presses the detection supporting plate 31 to move downwards along the vertical direction, and drives the supporting plate and the workpiece to move downwards until the two end faces of the workpiece are respectively abutted against the first conductor assembly 22 and the second conductor assembly 32, so that the workpiece is clamped and positioned;
in the third layer of positioning, the lifting mechanism 4 moves downwards to drive the positioning mechanism 5 to synchronously press downwards, and the positioning bump 522 is firstly abutted against the detection supporting plate 31 until the positioning bump 522 is inserted into the positioning hole 311; the first positioning component 52 functions as a preliminary positioning (rough positioning) of the upper detection mechanism 3; after the primary positioning, the second positioning assembly 53 works, that is, the second driving element 531 is started to drive the pressing block 532 to move downwards, the first connector 533 is inserted into the second connector 34, and the secondary positioning (fine positioning) of the upper detection mechanism 3 is realized; the upper detection mechanism 3 is accurately positioned through the matching of the first positioning component 52 and the second positioning component 53; and because the workpiece is positioned on the upper detection mechanism 3, the accurate positioning of the workpiece is realized.
In conclusion, the workpiece is gradually positioned in a multilayer positioning mode in the scheme, and multiple positioning modes are combined, so that the positioning precision is effectively improved, and the problem of poor precision of a single positioning mode is solved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.