CN212931314U - Measuring jig and measuring device - Google Patents

Abstract

The utility model provides a measure tool and have this measuring device who measures tool, measure the tool and be used for fixed work piece to the surface orientation measuring instrument that awaits measuring that makes the work piece, measure the tool and include support piece, connecting piece and mounting, the one end of mounting is connected in the connecting piece, the other end of mounting is used for fixed work piece, support piece is connected with the connecting piece, and the relative support piece of connecting piece is fixed after rotating preset angle, so that the relative support piece of mounting has a plurality of angles. Through setting up support piece and connecting, the connecting piece can rotate relative to support piece and predetermine circumference fixed after the angle, and the mounting can be fixed in a plurality of positions under the different angles of relative support piece to make the surface of awaiting measuring of the different sides of work piece on the mounting all can be towards measuring instrument, and measuring instrument is under the prerequisite that uses single measuring tool, but measuring instrument measuring tool multi-side's surface of awaiting measuring has reduced measuring tool's manufacturing cost.

Description

Measuring jig and measuring device

Technical Field

The utility model belongs to the tool field especially relates to a measure tool and have this measuring device who measures the tool.

Background

With the development of manufacturing industry, in order to reduce the quality requirement of workers, measuring jigs are more and more widely used, and the advantage of using measuring jigs is that if the same product is used, even though the workers do not have very sophisticated technology, the measuring jigs can be used for rapidly and accurately measuring the size of a workpiece.

At present, a single measuring tool in the industry can only measure the size of the same side of the workpiece, and if the size of the other side of the workpiece is measured, other measuring tools must be replaced. Therefore, if the sizes of multiple sides of the workpiece need to be measured, a plurality of corresponding measuring jigs need to be manufactured, which increases the cost of the measuring jigs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a measuring jig, the surface that awaits measuring of the different sides of work piece all can be towards the measuring instrument and the measurand, has lower cost of manufacture.

For realizing the purpose of the utility model, the utility model provides a following technical scheme:

in a first aspect, the utility model provides a measuring jig, measuring jig is used for fixed work piece, so that the surface orientation measuring instrument that awaits measuring of work piece, measuring jig includes support piece, connecting piece and mounting, the one end of mounting connect in the connecting piece, the other end of mounting is used for fixing the work piece, support piece with the connecting piece is connected, just the connecting piece is relative support piece is fixed circumferentially after rotating preset angle, so that the mounting is relative support piece has a plurality of angles. Through setting up support piece and connecting piece and rotating the connection, the connecting piece can rotate relative support piece and predetermine the angle after fixed, and the mounting can be fixed in a plurality of positions circumference under the different angles of relative support piece to make the surface that awaits measuring of the work piece difference side on the mounting all can be towards measuring instrument, measuring instrument is under the prerequisite that uses single measuring tool, but measuring instrument measuring tool multi-side surface that awaits measuring has reduced measuring tool's manufacturing cost.

In one embodiment, the support member is provided with a first mounting hole, the first mounting hole comprises a first accommodating space and a second accommodating space which are communicated with each other, the connecting member is arranged in the first mounting hole in a penetrating manner, the first accommodating space is clamped and cannot rotate, and the second accommodating space rotates. Through setting up the first mounting hole that has first accommodation space and second accommodation space, the connecting piece can rotate at second accommodation space and predetermine the angle to remove to first accommodation space and relative support piece is fixed, thereby be convenient for the mounting at a plurality of rigidity under relative support piece's the different angles, be favorable to the equal measuring instrument of can facing of the surface to be measured of the different sides of work piece.

In one embodiment, the cross section of the connecting member is polygonal in the extending direction of the connecting member, and the outer peripheral surface of the connecting member is circumferentially fixed in cooperation with a plurality of wall surfaces of the supporting member that surround the first accommodating space. The cross section of the connecting piece is polygonal, the connecting piece located in the first accommodating space is matched with the surface of the supporting piece to be fixed, the fixing mode of the connecting piece and the supporting piece is simple, and the surface to be measured of different sides of a workpiece can be conveniently replaced.

In one embodiment, the connecting piece is provided with a second mounting hole, the second mounting hole comprises a third accommodating space and a fourth accommodating space which are communicated, the supporting piece penetrates through the second mounting hole, the supporting piece is positioned in the third accommodating space and cannot rotate relatively due to clamping, and the fourth accommodating space rotates. Through the second mounting hole that sets up to have third accommodation space and fourth accommodation space, the connecting piece can rotate at third accommodation space and predetermine the angle to remove to fourth accommodation space and relative support piece circumference is fixed, thereby be convenient for the mounting at a plurality of rigidity under relative support piece's different angles, be favorable to the equal measuring instrument of can facing of the surface to be measured of the different sides of work piece.

In one embodiment, the connecting piece comprises a first connecting part, a mounting part and a second connecting part which are connected in sequence, and the mounting part is connected with the supporting piece; the mounting includes first clamping bar and the second clamping bar that sets up relatively, the one end of first clamping bar is located first connecting portion and with first connecting portion sliding connection, the one end of second clamping bar with second connecting portion are connected, first clamping bar with the second clamping bar is kept away from the one end of connecting piece is used for the centre gripping the work piece. The one end through setting up first clamping bar is connected in the first connecting portion of connecting piece, and the one end of second clamping bar is connected in the second connecting portion of connecting piece, and the one end centre gripping work piece of connecting piece is kept away from to first clamping bar and second clamping bar to fixed work piece makes the surface that awaits measuring of three sides of work piece all can be towards the measuring instrument, is favorable to improving the measurement efficiency of work piece, and the mode of fixed work piece is comparatively simple and easy, is convenient for change the work piece.

In one embodiment, the first connecting portion has a first engaging groove, and one end of the first clamping rod is received in the first engaging groove and moves relative to the first connecting portion along an extending direction of the first engaging groove; or one end of the first clamping rod is provided with a second clamping groove, and the first connecting part is accommodated in the second clamping groove and moves relative to the first clamping rod along the extension direction of the second clamping groove. Through setting up first draw-in groove or second draw-in groove to first clamping bar and first connecting portion relative motion.

In one embodiment, the measuring jig further comprises an elastic piece and a locking piece, the elastic piece and the locking piece are arranged on the first connecting portion, the first clamping rod and the elastic piece are sequentially connected with the locking piece, the first clamping rod is in sliding connection with the first connecting portion in the axial direction of the first connecting portion, when the measuring jig clamps the workpiece, the elastic piece is in a compression state, and the locking piece is used for changing the compression amount of the elastic piece, so that the first clamping rod and the second clamping rod clamp the workpiece. Through setting up elastic component and retaining member, the elasticity of elastic component is adjusted to the retaining member to control first clamping bar and the pressure of second clamping bar to the work piece, make the work piece receive suitable pressure, avoid the too big work piece of pressure to be crushed wounded or the too little work piece of pressure breaks away from, simultaneously, first clamping bar and first connecting portion are sliding connection in the axial of first connecting portion, the mounting of being convenient for adapts to not unidimensional work piece.

In one embodiment, the second connecting portion is also provided with the elastic member and the locking member, the second clamping bar, the elastic member and the locking member are sequentially connected, and the second clamping bar is slidably connected with the second connecting portion in the axial direction of the second connecting portion, or the second clamping bar is fixedly connected with the second connecting portion. The second connecting portion and the second clamping rod are arranged in a sliding connection mode, so that the fixing piece can be further suitable for workpieces of different sizes, or the second connecting portion is fixedly connected with the second clamping rod, and the cost of the measuring jig is saved.

In one embodiment, a connection through hole is formed at one end of the first clamping rod connected with the first connection portion, and the first connection portion penetrates through the connection through hole and is slidably connected with the first clamping rod. Through setting up connect the through hole, connect the first connecting portion of through hole holding, connect the axial direction of through hole and the extending direction coincidence of first connecting portion to first clamping bar moves in the extending direction of first connecting portion relatively first connecting portion.

In one embodiment, a first protrusion is disposed at an end of the first clamping bar, the end being away from the connecting member, the first protrusion is disposed on a first surface of the first clamping bar, the first surface being opposite to the second clamping bar, the first protrusion and an end surface of the first clamping bar, the end surface being away from the connecting member, have a distance therebetween, and the first protrusion is configured to limit the workpiece to move toward the connecting member along an extending direction of the first clamping bar. The workpiece is limited to move towards the connecting piece along the extending direction of the first clamping rod by the aid of the first protrusions, so that the workpiece is prevented from deviating from a station, the size of the surface to be detected of the workpiece is detected disadvantageously, and the virtuous condition of the workpiece is judged easily by mistake.

In one embodiment, the support member includes a body portion and a protruding portion connected to each other, the protruding portion protrudes from a second surface of the body portion facing the measuring instrument, and the first mounting hole is formed in the protruding portion. Through setting up the bellying, the bellying is located this somatic part protrudingly and is faced the second surface of measuring instrument, and the bellying is located to first mounting hole to guarantee that the connecting piece has sufficient rotation space, increase the connecting piece pivoted maximum preset angle.

In a second aspect, the present invention provides a measuring device comprising a measuring instrument and the measuring jig of any one of the embodiments of the first aspect, wherein the measuring jig is used for fixing a workpiece, and the measuring instrument is used for measuring the dimension of the surface to be measured of the workpiece. Through adding in measuring device the utility model provides a measuring tool, measuring device can measure the surface to be measured of the different sides of work piece under the condition of not changing measuring tool, are favorable to improving measurement of efficiency and reduce measuring tool's manufacturing cost.

Drawings

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

FIG. 1a is a schematic perspective view of a measuring tool according to an embodiment;

FIG. 1b is a schematic perspective view of another state of the measuring tool of FIG. 1 a;

FIG. 1c is a schematic perspective view of a measuring tool according to another embodiment;

FIG. 1d is a schematic perspective view of another state of the measuring tool of FIG. 1 c;

FIG. 2a is a schematic front view of the measuring tool of FIG. 1a in an operating state;

FIG. 2b is a schematic front view of the measuring tool of FIG. 1a in another working state;

FIG. 2c is a schematic front view of the measuring tool of FIG. 1a in another working state;

FIG. 3 is a schematic top view of the measuring tool of FIG. 2 a;

FIG. 4 is a left side view of the measuring tool of FIG. 2 a;

FIG. 5 is a schematic perspective view of a first clamping bar according to one embodiment;

FIG. 6 is a schematic perspective view of a connector according to one embodiment;

FIG. 7 is a schematic perspective view of a support member according to one embodiment;

FIG. 8a is a cross-sectional view of a support member and a connector in one embodiment;

FIG. 8b is a cross-sectional view of a support member and a connector member in another embodiment;

FIG. 8c is a cross-sectional view of a support member and a connector member in another embodiment;

FIG. 9a is a schematic view of a connector and fastener configuration according to one embodiment;

fig. 9b is a schematic view of the structure of a connecting member and a fixing member in another embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1a to fig. 2a, an embodiment of the present invention provides a measuring tool 100, wherein the measuring tool 100 is used for fixing a workpiece 200 such that a surface to be measured of the workpiece 200 faces a measuring instrument (not shown). The measuring tool 100 includes a supporting member 10, a connecting member 20 and a fixing member 30, wherein one end of the fixing member 30 is connected to the connecting member 20, the other end of the fixing member 30 is used for fixing the workpiece 200, the supporting member 10 is connected to the connecting member 20, and the connecting member 20 is circumferentially fixed after rotating a predetermined angle relative to the supporting member 10, so that the fixing member 30 has a plurality of angles relative to the supporting member 10.

Through setting up support piece 10 and connecting piece 20 and connecting, connecting piece 20 can rotate the circumference fixed after presetting the angle relative to support piece 10, and mounting 30 can be fixed at a plurality of positions circumference under the different angles of relative support piece 10 to make the surface that awaits measuring of the work piece 200 difference side on mounting 30 all can be towards the measuring instrument, and the measuring instrument is under the prerequisite that uses single measuring tool 100, can measure the surface that awaits measuring of the work piece 200 multilateral, has reduced the manufacturing cost of measuring tool 100.

Specifically, the workpiece 200 may be a fingerprint module, a lens module, a display module, a backlight module, or a part in each module, such as a conductive layer in the fingerprint module and a housing of the lens module. After the workpiece 200 is manufactured, the dimensions of the surfaces to be measured on multiple sides of the workpiece need to be measured, so that the workpiece 200 can meet the design requirements of assembly precision and the like. The measured dimensions include parallelism, flatness, straightness, distance, angle, and the like. The measuring instrument is preferably a two-dimensional image measuring instrument, and the supporting member 10 is fixed on the worktable such that the surface to be measured of the workpiece 200 is aligned with a CCD (Charge Coupled Device) of the two-dimensional image measuring instrument. The connecting member 20 is fixed in the circumferential direction after rotating a predetermined angle with respect to the supporting member 10, and is still movable in the axial direction with respect to the supporting member 10.

It is understood that the support member 10 is connected to the connecting member 20 in a rotatable manner, and is not limited to the rotatable connection formed by the hinge, and only means that the connecting member 20 can rotate relative to the connecting member 20, and is not limited to only rotate relative to each other and not move relative to each other. Since the supporting member 10 is fixed to the worktable, a surface of the worktable to which the supporting member 10 is fixed may be used as a reference surface, and the fixing member 30 corresponds to another plane having an included angle with the reference surface, which may vary as the connecting member 20 rotates, so that the fixing member 30 has a plurality of angles with respect to the supporting member 10. The workpiece 200 is fixed to the fixture 30 so that the surface to be measured on different sides of the workpiece 200 can be inspected toward the measuring instrument. Therefore, the utility model provides a measuring jig has not only reduced manufacturing cost, has also saved the time of changing the tool, has improved work efficiency.

In one embodiment, referring to fig. 1a, the supporting member 10 is provided with a first mounting hole 101, and the first mounting hole 101 includes a first receiving space 1011 and a second receiving space 1012 connected with each other. The connecting member 20 is inserted into the first mounting hole 101, and the connecting member 20 is locked in the first receiving space 1011 and cannot rotate, and rotates in the second receiving space 1012. Specifically, referring to fig. 1b, at this time, the connecting member 20 is located in the second receiving space 1012, the connecting member 20 has a circumferential degree of freedom, and the connecting member 20 can rotate relative to the supporting member 10 by a predetermined angle. Referring to fig. 1a, when the connecting member 20 is located in the first receiving space 1011, the connecting member 20 is fixed circumferentially and cannot rotate relative to the supporting member 10, but can move relative to the supporting member 10. By providing the first mounting hole 101 with the first receiving space 1011 and the second receiving space 1012, the connecting member 20 can rotate a predetermined angle in the second receiving space 1012 and move to the first receiving space 1011 to be fixed relative to the supporting member 10, thereby facilitating the fixing of the fixing member 30 at a plurality of positions at different angles relative to the supporting member 10, and facilitating the measurement instrument to be oriented on the surface to be measured on different sides of the workpiece 200.

In one embodiment, referring to fig. 1c and fig. 1d, the connecting member 20 is provided with a second mounting hole 102, the second mounting hole 102 includes a third accommodating space 1021 and a fourth accommodating space 1022 which are communicated, the supporting member 10 is inserted into the second mounting hole 102, the supporting member 10 is locked in the third accommodating space 1021 and cannot rotate relatively, and the supporting member rotates in the fourth accommodating space 1022. Specifically, referring to fig. 1d, at this time, the supporting member 10 has a circumferential degree of freedom in the fourth accommodating space 1022, and the connecting member 20 can rotate relative to the supporting member 10 by a predetermined angle. Referring to fig. 1c, at this time, the supporting member 10 is locked and circumferentially fixed on the third receiving space 1021, and the connecting member 20 cannot rotate relative to the supporting member 10, but can move relative to the supporting member 10. In this embodiment, the connecting member 20 can be circumferentially fixed to the supporting member 10 after rotating a predetermined angle through the second mounting hole 102, so that the fixing member 30 can have a plurality of different angles with respect to the supporting member 10, and the object of the present invention can also be achieved.

In one embodiment, referring to fig. 1a, the supporting member 10 includes a body portion 11 and a protrusion portion 12 connected to each other. The protrusion 12 protrudes from the second surface 110 of the body 11 facing the measuring instrument, and the first mounting hole 101 is formed in the protrusion 12. By providing the protrusion 12, the protrusion 12 protrudes from the second surface 110 of the body 11 facing the measuring instrument, and the first mounting hole 101 is formed in the protrusion 12, so as to ensure that the connecting member 20 has a sufficient rotating space and increase the maximum preset angle of rotation of the connecting member 20.

Specifically, the main body 11 and the protruding portion 12 may be an integral structure, or may be connected to form a detachable structure through a connection manner such as a screw thread or a snap. The wall surface of the first mounting hole 101 at the first receiving space 1011 may be coated with a lubricant to facilitate the entrance or exit of the connector 20 into or from the first receiving space 1011. Preferably, the second receiving space 1012 and the first receiving space 1011 of the first mounting hole 101 are arranged in the same vertical direction, and the first receiving space 1011 is located below the second receiving space 1012, so that the connecting member 20 can be stably fixed in the first receiving space 1011 under the action of gravity. The first mounting hole 101 is a through hole, and it is understood that a through groove formed by connecting the inner wall of the first mounting hole 101 to the edge of the support 10 also belongs to an example in the present embodiment, and similarly, the second mounting hole 102 may also be in the shape of a through groove. The connecting member 20 has a rotational degree of freedom in the second receiving space 1012 and no rotational degree of freedom in the first receiving space 1011, so that the connecting member 20 is rotated by a predetermined angle in the second receiving space 1012 and then enters the first receiving space 1011 for being fixed, thereby allowing the fixing member 30 to have a plurality of different angles with respect to the supporting member 10.

In one embodiment, referring to fig. 6 to 8c, in the extending direction 90 of the connecting member 20, the cross section of the connecting member 20 is polygonal, and the outer peripheral surface of the connecting member 20 is engaged with the plurality of wall surfaces of the supporting member 10 surrounding the first receiving space 1011 for circumferential fixation. The cross section of the connecting piece 20 is in a corresponding polygon shape, and the connecting piece 20 located in the first accommodating space 1011 is matched and fixed with the support piece 10, so that the surfaces to be measured on three sides of the workpiece 200 can all face towards the measuring instrument, the improvement of the measuring efficiency of the workpiece 200 is facilitated, meanwhile, the fixing mode of the connecting piece 20 and the support piece 10 is simple, and the surfaces to be measured on different sides of the workpiece 200 can be conveniently replaced.

Specifically, the connecting member 20 has a rod shape as a whole, and the extending direction 90 is the length direction thereof. The cross section of the connecting piece 20 is a regular polygon, which can be a square, a regular pentagon, a regular hexagon, etc. In particular, when applied to a two-dimensional measuring instrument, the cross section of the connecting member 20 is preferably a square, or a polygon such as a regular octagon having two sets of parallel planes perpendicular to each other. The size of the cross section of the connection member 20 is equal to or smaller than the size of the cross section of the first accommodation space 1011 so that the connection member 20 can protrude into the first accommodation space 1011. Referring to fig. 2a to 2c, the workpiece 200 includes a plurality of first surfaces to be measured 210, second surfaces to be measured 220, and third surfaces to be measured 230 on different sides, wherein the number of the first surfaces to be measured 210, the second surfaces to be measured 220, and the third surfaces to be measured 230 may be plural. Defining the relative angle of the fixed member 30 and the supporting member 10 in fig. 2a as 0 °, the relative angle of the fixed member 30 and the supporting member 10 in fig. 2b as 90 °, and the relative angle of the fixed member 30 and the supporting member 10 in fig. 2c as 180 °. It can be seen that, when the relative angle is 0 °, the first surface to be measured 210 of the workpiece 200 faces the measuring instrument, and the measuring instrument measures the size of the first surface to be measured 210; when the relative angle is 90 °, the second surface 220 to be measured of the workpiece 200 faces the measuring instrument, and the measuring instrument measures the size of the second surface 220 to be measured; when the relative angle is 180 °, the third surface-to-be-measured 230 of the workpiece 200 faces the measuring instrument, and the measuring instrument measures the dimension of the third surface-to-be-measured 230.

In one embodiment, referring to fig. 3 and 6, the connecting member 20 includes a first connecting portion 21, a mounting portion 22 and a second connecting portion 23 connected in sequence, and the mounting portion 22 is connected to the supporting member 10. The fixing member 30 includes a first clamping bar 31 and a second clamping bar 32 disposed opposite to each other, one end of the first clamping bar 31 is disposed at the first connecting portion 21 and slidably connected to the first connecting portion 21, one end of the second clamping bar 32 is disposed at the second connecting portion 23, and ends of the first clamping bar 31 and the second clamping bar 32 away from the connecting member 20 are used for clamping the workpiece 200. Through setting up the one end of first clamping bar 31 and connecting in the first connecting portion 21 of connecting piece 20, the one end of second clamping bar 32 is connected in the second connecting portion 23 of connecting piece 20, and the one end centre gripping work piece 200 that connecting piece 20 was kept away from to first clamping bar 31 and second clamping bar 32 to fixed work piece 200, the mode of fixed work piece 200 is comparatively simple and easy, is convenient for change work piece 200.

Specifically, the first connecting portion 21, the mounting portion 22 and the second connecting portion 23 are of an integral structure, and the mounting portion 22 is partially received in the first mounting hole 101. The first clamping bar 31 can be fixed to the first connecting portion 21, the second clamping bar 32 can be fixed to the second connecting portion 23, the first clamping bar 31 and the second clamping bar 32 are both made of elastic materials, and the first clamping bar 31 and the second clamping bar 32 have appropriate elastic moduli, so that the first clamping bar 31 and the second clamping bar 32 can clamp the workpiece 200 through deformation.

In one embodiment, referring to fig. 3, 4 and 6, the measuring tool 100 further includes an elastic member 40 and a locking member 50, and both the elastic member 40 and the locking member 50 are disposed on the first connecting portion 21. The first clamping bar 31, the elastic member 40 and the locking member 50 are connected in sequence, and the first clamping bar 31 is slidably connected with the first connecting portion 21 in the axial direction 91 of the first connecting portion 21. The axial direction 91 of the first connection portion 21 coincides with the extension direction 90 of the connection piece 20. When the measuring tool 100 clamps the workpiece 200, the elastic member 40 is in a compressed state, and the locking member 50 is used for changing the compression amount of the elastic member 40, so that the first clamping bar 31 and the second clamping bar 32 clamp the workpiece 200. Through the arrangement of the elastic member 40 and the locking member 50, the locking member 50 adjusts the elastic force of the elastic member 40, so as to control the pressure of the first clamping bar 31 and the second clamping bar 32 on the workpiece 200, so that the workpiece 200 is subjected to proper pressure, and the workpiece 200 with too large pressure is prevented from being crushed or the workpiece 200 with too small pressure is prevented from being separated, meanwhile, the first clamping bar 31 is movably connected with the first connecting portion 21 in the axial direction 91 of the first connecting portion 21, so that the fixing member 30 can be adapted to workpieces 200 with different sizes.

Specifically, the first clamping bar 31 and the second clamping bar 32 in this embodiment are preferably rigid materials, the elastic member 40 is preferably a spring, and the locking member 50 may be a nut. The locking member 50 is movably connected with the first connecting portion 21 by a screw connection, the elastic member 40 is sleeved on the first connecting portion 21, one end of the elastic member 40 abuts against the first clamping bar 31, and the other end abuts against the locking member 50. The second connecting portion 23 is also provided with an elastic member 40 and a locker 50, and the arrangement and connection manner of the elastic member 40 and the locker 50 on the second connecting portion 23 can be referred to the arrangement and connection manner of the elastic member 40 and the locker 50 on the first connecting portion 21.

In one embodiment, the second connecting portion 23 is also provided with an elastic member 40 and a locking member 50, the second clamping bar 32, the elastic member 40 and the locking member 50 are connected in sequence, and the second clamping bar 32 is slidably connected with the second connecting portion 23 in the axial direction of the second connecting portion 23, or the second clamping bar 32 is fixedly connected with the second connecting portion 23. Specifically, the axial direction of the second connection portion 23 is parallel to the axial direction 91 of the first connection portion 21. The second connecting portion 23 may fix the second clamping bar 32 by screw coupling. The second connecting portion 23 and the second clamping bar 32 are slidably connected, so that the fixing member 30 can be adapted to workpieces 200 with different sizes, or the second connecting portion 23 and the second clamping bar 32 are fixedly connected, and the cost of the measuring jig 100 is saved.

In one embodiment, referring to fig. 5 and fig. 6, a connecting through hole 301 is formed at one end of the first clamping bar 31 connected to the first connecting portion 21, the first connecting portion 21 is inserted into the connecting through hole 301 and slidably connected to the first clamping bar 31, and an axial direction 92 of the connecting through hole 301 coincides with an axial direction 91 of the first connecting portion 21. By providing the connecting through hole 301, the connecting through hole 301 accommodates the first connecting portion 21, and the axial direction 92 of the connecting through hole 301 coincides with the axial direction 91 of the first connecting portion 21, so that the first clamping bar 31 moves in the axial direction 91 of the first connecting portion 21 relative to the first connecting portion 21.

Specifically, the cross-sectional shape of the connection through-hole 301 in the axial direction 92 of the connection through-hole 301 corresponds to the cross-sectional shape of the portion of the first connection portion 21 received in the connection through-hole 301, and the former is equal to or greater than the latter, so that the connection member 20 can be sufficiently circumferentially constrained while being movable in the axial direction 91 of the first connection portion 21. It is understood that the connection through hole 301 may be implemented as a slot such as a dovetail groove, mainly for providing a circumferentially fixed environment for the first connection portion 21 and the first clamping bar 31 to move relatively in the axial direction 91 of the first connection portion 21.

In one embodiment, the first clamping bar 31 and the second clamping bar 32 are both rotatably connected to the connecting member 20, and the connecting member 20 is fixedly connected to the supporting member 10. Specifically, the first clamping bar 31 and the second clamping bar 32 are provided with first mounting holes 101 having a clamping function, so that the first clamping bar 31 and the second clamping bar 32 can rotate relative to the connecting member 20, and the workpiece has a plurality of suitable measuring angles.

In one embodiment, referring to fig. 1a and fig. 3, a first protrusion 311 is disposed on an end of the first clamping bar 31 away from the connecting member 20, and the first protrusion 311 is disposed on a first surface 310 of the first clamping bar 31 opposite to the second clamping bar 32. The first protrusion 311 is spaced apart from an end surface 320 of the first clamping bar 31 away from the connecting member 20 by a distance D, and the first protrusion 311 is used for limiting the movement of the workpiece 200 toward the connecting member 20 along the extending direction 93 of the first clamping bar 31. The first protrusion 311 is arranged to limit the workpiece 200 to move towards the connecting piece 20 along the extending direction 93 of the first clamping bar 31, so that the workpiece 200 is prevented from deviating from a station, the size detection of the surface to be detected of the workpiece 200 is not favorable, and the benignancy of the workpiece 200 is easily judged by mistake.

Specifically, the first protrusion 311 and the first clamping bar 31 are preferably of an integral structure. The second clamping bar 32 has the same structure as the first clamping bar 31, and the second clamping bar 32 is provided with a second protrusion 321 opposite to the first protrusion 311. The first projection 311 and the second projection 321 cooperate to restrict the movement of the workpiece 200 toward the connecting member 20 in the extending direction 93 of the first clamping bar 31 (the second clamping bar 32).

In one embodiment, referring to fig. 1a and 4, the axial direction 94 of the first mounting hole 101 is parallel to the second surface 110. By arranging the axial direction 94 of the first mounting hole 101 to be parallel to the second surface 110, the surface to be measured of the workpiece 200 can be ensured to be opposite to a measuring instrument, and the dimensional measurement precision is improved.

Specifically, the axial direction 94 of the first mounting hole 101, the axial direction 91 of the first connecting portion 21, and the axial direction 92 of the connecting through hole all coincide while being perpendicular to the extending direction 93 of the first clamping bar 31. When the measuring instrument is a two-dimensional image measuring instrument, the surface to be measured of the workpiece 200 is directly opposite to the CCD camera of the two-dimensional image measuring instrument, so that light can be perpendicular to the surface to be measured.

In one embodiment, referring to fig. 9a, the first connecting portion 21 is provided with a first slot 201, and one end of the first clamping rod 31 is received in the first slot 201 and moves relative to the first connecting portion 21 along the extending direction of the first slot 201.

In another embodiment, please refer to fig. 9b, or one end of the first clamping bar 31 is provided with a second engaging groove 202, and the first connecting portion 21 is partially received in the second engaging groove 202 and moves relative to the first clamping bar 31 along the extending direction of the second engaging groove 202. The first engaging groove 201 or the second engaging groove 202 is provided to facilitate the relative movement between the first clamping bar 31 and the first connecting portion 21.

Referring to fig. 1a, an embodiment of the present invention provides a measuring device, which includes a measuring instrument and the present invention provides a measuring tool 100, wherein the measuring tool 100 is used for fixing a workpiece 200, and the measuring instrument is used for measuring the size of the surface to be measured of the workpiece 200. Specifically, the measuring instrument is preferably a two-dimensional image measuring instrument. Specifically, the workpiece 200 may be a fingerprint module, a lens module, a display module, a backlight module, or a part in each module, such as a conductive layer in the fingerprint module and a housing of the lens module. Through adding in measuring device the utility model provides a measuring tool 100, measuring device can measure the surface to be measured of the different sides of work piece 200 under the condition of not changing measuring tool 100, are favorable to improving measurement of efficiency and reduce measuring tool 100's manufacturing cost.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a measuring jig, measuring jig is used for fixed work piece, so that the surface orientation measuring instrument that awaits measuring of work piece, its characterized in that, measuring jig includes support piece, connecting piece and mounting, the one end of mounting connect in the connecting piece, the other end of mounting is used for fixing the work piece, support piece with the connecting piece is connected, just the connecting piece is relative support piece circumferential direction is fixed after rotating preset angle, so that the mounting is relative support piece has a plurality of angles.

2. The measuring jig according to claim 1, wherein the support member has a first mounting hole, the first mounting hole includes a first receiving space and a second receiving space that are communicated with each other, the connecting member is inserted into the first mounting hole, and the connecting member is locked in the first receiving space and is prevented from rotating, and rotates in the second receiving space.

3. The measuring jig according to claim 2, wherein in the extending direction of the connecting member, the cross section of the connecting member is polygonal, and the outer peripheral surface of the connecting member is fitted with a plurality of wall surfaces of the supporting member that surround the first accommodating space and fixed circumferentially.

4. The measuring jig according to claim 1, wherein the connecting member has a second mounting hole, the second mounting hole includes a third receiving space and a fourth receiving space that are communicated with each other, the supporting member is inserted into the second mounting hole, the supporting member is locked in the third receiving space and cannot rotate relatively, and the supporting member rotates in the fourth receiving space.

5. The measuring jig according to any one of claims 1 to 4, wherein the connecting member includes a first connecting portion, a mounting portion and a second connecting portion connected in sequence, the mounting portion being connected to the supporting member; the mounting includes first clamping bar and the second clamping bar that sets up relatively, the one end of first clamping bar is located first connecting portion and with first connecting portion sliding connection, the one end of second clamping bar with second connecting portion are connected, first clamping bar with the second clamping bar is kept away from the one end of connecting piece is used for the centre gripping the work piece.

6. The measuring jig according to claim 5, wherein the first connecting portion is provided with a first engaging groove, and one end of the first clamping rod is accommodated in the first engaging groove and slidably connected to the first connecting portion along an extending direction of the first engaging groove;

or one end of the first clamping rod is provided with a second clamping groove, and the first connecting part is accommodated in the second clamping groove and is connected with the first clamping rod in a sliding manner along the extending direction of the second clamping groove.

7. The measuring fixture according to claim 5, wherein a connecting through hole is formed at one end of the first clamping rod connected with the first connecting portion, and the first connecting portion is inserted into the connecting through hole and slidably connected with the first clamping rod.

8. The measuring jig according to claim 5, further comprising an elastic member and a locking member, wherein the elastic member and the locking member are both disposed on the first connecting portion, the first clamping bar, the elastic member and the locking member are sequentially connected, the first clamping bar and the first connecting portion are slidably connected in an axial direction of the first connecting portion, when the measuring jig clamps the workpiece, the elastic member is in a compressed state, and the locking member is configured to change a compression amount of the elastic member, so that the first clamping bar and the second clamping bar clamp the workpiece.

9. The measuring jig according to claim 8, wherein the second connecting portion is also provided with the elastic member and the locking member, the second clamping bar, the elastic member and the locking member are connected in sequence, and the second clamping bar is slidably connected to the second connecting portion in an axial direction of the second connecting portion, or the second clamping bar is fixedly connected to the second connecting portion.

10. A measuring apparatus, characterized by comprising a measuring instrument for fixing a workpiece and a measuring jig according to any one of claims 1 to 9 for measuring the dimension of a surface to be measured of the workpiece.

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