CN215065720U - Clamping mechanism and detection equipment - Google Patents

Abstract

The application discloses a clamping mechanism which is used for clamping a workpiece to be tested and comprises a pull rod, a positioning piece and a slide block, wherein the pull rod is provided with a containing part; the positioning piece is arranged at one end of the pull rod and used for positioning a workpiece to be measured; one end of the sliding block is movably connected with the accommodating part, so that the other end of the sliding block and the positioning part cooperatively act to clamp the workpiece to be tested between the pull rod and the sliding block, the structure is compact, the size is small, the device can be flexibly applied to testing the connection strength between different structures, and the use is convenient; the vertical tension test and the horizontal tension test of the workpiece to be tested can be completed, and the tension test efficiency is improved. The application also discloses a detection device comprising the clamping mechanism.

Description

Clamping mechanism and detection equipment

Technical Field

The application relates to the technical field of testing, concretely relates to fixture and detection equipment comprising fixture.

Background

The connection strength of the structure of a product produced by welding, injection molding, bonding and other modes is often required to be tested to judge whether the product quality is qualified. For the welding quality test of the elastic sheet welded to the bottom plate, a pressing mechanism with a left half clamp and a right half clamp is generally adopted to clamp the elastic sheet, and preset pressure is applied to test the connection strength. However, since the operation space between the plurality of welded elastic sheets and the bottom plate is narrow, the left half clamp or the right half clamp is difficult to be inserted into the gap between the elastic sheet and the bottom plate, and the testing efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a clamping mechanism and a detection apparatus to solve the above problems.

An embodiment of the application provides a clamping mechanism for clamping a workpiece to be tested, which comprises a pull rod, a positioning piece and a slide block, wherein the pull rod is provided with a containing part; the positioning piece is arranged at one end of the pull rod and used for positioning a workpiece to be measured; one end of the sliding block is movably connected with the accommodating part, so that the other end of the sliding block and the positioning part cooperatively act to clamp the workpiece to be tested between the pull rod and the sliding block.

In an embodiment of the present application, the pull rod includes a body and a connecting portion, and the receiving portion is disposed on the body; the connecting part is arranged in the accommodating part; the sliding block comprises a substrate, a movable part and a clamping part, wherein the movable part is arranged in the accommodating part, is connected with the substrate and is movably connected with the connecting part; the clamping part is arranged at one end of the substrate, a clamping groove is formed in the clamping part, and the clamping groove is clamped in the positioning piece so as to clamp the workpiece to be tested between the body and the clamping part.

In an embodiment of the application, the clamping mechanism further comprises a shifting assembly, the shifting assembly comprises a shifting block and a connecting piece, and the shifting block is movably connected with the accommodating part; the connecting piece connects gradually shifting block, base plate to with the shifting block with the base plate is fixed.

In an embodiment of the application, the shifting block comprises a shifting part, a fixing part and a protruding part, the fixing part is vertically connected with the shifting part, and the protruding part is arranged on the fixing part and passes through the connecting piece and the substrate.

In an embodiment of the present application, the movable portion includes two clamping plates, two clamping plate intervals are located the base plate is in order to form the open slot, the bellying is located the open slot, connecting portion with open slot swing joint.

In an embodiment of the application, the elastic member further includes an end of the elastic member is sleeved on the connecting portion, and the other end of the elastic member is disposed on the open slot and abutted to the protruding portion.

In an embodiment of the application, the pull rod further includes a pull block, the pull block is disposed at one end of the pull rod, and the pull block is provided with a pull groove.

In an embodiment of the present application, the pull block includes an extension portion, a vertical portion and a parallel portion, the extension portion is connected to one end of the body, the vertical portion is perpendicular to the extension portion, the parallel portion and the extension portion are respectively perpendicularly connected to two ends of the vertical portion, and are arranged in parallel with the extension portion at an interval to form the pull groove with the extension portion.

In an embodiment of the present application, the pull groove is T-shaped.

The application provides a detection equipment, detection equipment include above-mentioned embodiment fixture, detection equipment further includes force application device and pulling force piece, the one end card of pulling force piece is held in the kerve, the other end of pulling force piece with force application device is connected, so that force application device drives the pull rod removes.

In this application, fixture's application of force main part is the pull rod, and width and thickness in the pull rod unit volume are less, and the flexibility is strong, and the tip of pull rod is located to the setting element, and the portion of acceping that pull rod one end was seted up is acceptd to slider one end, and the slider other end and setting element actuate in coordination, make fixture does not increase too much extra usage space on the basis of pull rod.

During testing, the workpiece to be tested is clamped between the pull rod and the sliding block, upward pulling force is applied to the pull rod, the pull rod drives the positioning piece to apply upward preset pulling force to the workpiece to be tested, if the workpiece to be tested is not pulled by the applied preset pressure, the upward pulling force borne by the workpiece to be tested is qualified, and if the workpiece to be tested is pulled by the applied preset pressure, the upward pulling force borne by the workpiece to be tested is unqualified, so that the test of the vertical pulling force of the workpiece to be tested is completed; meanwhile, by utilizing the characteristics of small overall size and strong flexibility of the clamping mechanism, the pull rod drives the positioning piece to apply horizontal preset tension to the workpiece to be tested, if the workpiece to be tested is not pulled open by the applied preset pressure, the horizontal tension born by the workpiece to be tested is qualified, and if the workpiece to be tested is pulled open by the applied preset pressure, the horizontal tension born by the workpiece to be tested is unqualified, so that the horizontal tension test of the workpiece to be tested is completed.

Therefore, the clamping mechanism has a compact structure and a small volume, can be flexibly applied to the connection strength test among different structures, and is convenient to use; the horizontal tension test and the vertical tension test of the workpiece to be tested can be completed simultaneously, and the test efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a clamping mechanism and a workpiece to be tested in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an embodiment of the present application in which the elastic sheet and the body are perpendicular to each other.

Fig. 3 is a schematic structural view illustrating a state in which the elastic sheet and the body are parallel to each other according to an embodiment of the present application.

Fig. 4 is a schematic view of an assembly structure of a clamping mechanism according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of the slider in fig. 4.

Fig. 6 is a schematic structural diagram illustrating a closed state of the clamping mechanism according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram illustrating an open state of a clamping mechanism according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a detection apparatus in an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a detection device for detecting a vertical pulling force in an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a detection device for detecting a horizontal pulling force according to an embodiment of the present application.

Description of the main elements

Clamping mechanism 10

Workpiece 20 to be measured

Pull rod 12

Positioning piece 14

Slider 16

Housing 120

Camera support 22

Spring plate 24

Solder joint 26

Test section 242

Weld 244

Spring plate through hole 240

Horizontal portion 220

Vertical portion 222

Body 122

Connecting part 124

Substrate 160

Movable part 162

Splint 1620

Clamping portion 164

Open slot 166

Holding groove 1640

Pull pin 140

Elastic member 18

Toggle assembly 110

Shifting block 1110

Connecting piece 1120

Convex portion 1111

Fixed part 1112

Striking part 1114

Base plate screw hole 1600

Fixing threaded hole 1113

Pulling block 130

Drawing groove 150

Extension 132

Vertical portion 134

Parallel portion 136

Detection apparatus 100

Tension member 30

Force application axis 40

Force axis 50

Force application surface 60

Detailed Description

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

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, an embodiment of the present application provides a clamping mechanism 10 for clamping a workpiece to be tested, which may be a part formed by welding, injection molding, casting, bonding, or fusing two components, such as a part in an electronic device, such as a mobile phone, a computer, a display, and the like.

As shown in fig. 1, in the present application, the workpiece 20 to be tested is illustrated by taking a similar camera bracket as an example, that is, the clamping mechanism 10 in the present application can be used for clamping and positioning the workpiece 20 to be tested, and the clamping mechanism 10 is used for applying a tensile force by using manpower or mechanical equipment, so as to complete the test of the connection strength of the welded workpiece 20 to be tested, wherein the test of the connection strength can include a vertical tensile force test and a horizontal tensile force test, and whether the connection strength of the product structure is qualified or not is judged by measuring the tensile force value.

Specifically, referring to fig. 2, in the present embodiment, the workpiece 20 to be measured includes a camera support 22, a spring plate 24 and a plurality of welding points 26.

Specifically, the spring plate 24 includes a testing portion 242 and a welding portion 244, the testing portion 242 is connected with the welding portion 244 to form a "T" shape, the testing portion 242 is provided with at least two spaced spring plate through holes 240, and the joint of the testing portion 242 and the welding portion 244 is provided with notches, so as to separate the testing portion 242 and the welding portion 244 after the test is completed; the camera bracket 22 includes a horizontal portion 220 and two vertical portions 222 vertically connected to the horizontal portion 220, a welding portion 244 is welded to the vertical portions 222 to form a plurality of welding spots 26 having a small volume, and the clamping mechanism 10 applies a pulling force through a testing portion 242 to determine the welding strength of the welding spots 26.

The vertical pulling force and the horizontal pulling force of the test are directed to the tensile force value test performed on the welding strength between the welding portion 244 and the camera holder 22 in the workpiece 20 to be tested, that is, the test portion 242 welded to the camera holder 22 does not cause the falling of the welding point 26 or the fracture of the welding portion 244 under the action of the preset pulling force applied in the vertical direction and the horizontal direction, and the welding quality between the elastic sheet 24 and the camera holder 22 is considered to be qualified, and if the falling of the welding point 26 or the fracture of the welding portion 244 is caused under the preset pulling force, the welding quality between the welding portion 244 and the camera holder 22 is considered to be unqualified. Specifically, as shown in fig. 2, the testing portion 242 is perpendicular to the camera holder 22, so that the workpiece 20 to be tested can be subjected to a vertical tensile test, and as shown in fig. 3, the testing portion 242 is parallel to the camera holder 22, so that the workpiece 20 to be tested can be subjected to a horizontal tensile test.

Further, the testing portion 242 is determined to be in good quality with respect to the welding portion 244 when the testing portion 242 is under the predetermined pulling force, regardless of whether the testing portion 242 is separated from the welding portion 244 or not, as long as the testing portion 242 does not cause the separation of the welding point 26 or the fracture of the welding portion 244 under the predetermined pulling force. After the test is completed, the test portion 242 as a test auxiliary material may be broken along the notch at the joint of the test portion 242 and the soldering portion 244, and the test portion 242 may be removed.

Referring to fig. 1 and 4 together, in an embodiment of the present application, the clamping mechanism 10 includes a pull rod 12, a positioning member 14 and a sliding block 16, wherein the pull rod 12 is provided with a receiving portion 120; the positioning piece 14 is arranged at one end of the pull rod 12 and used for positioning a workpiece 20 to be measured; one end of the sliding block 16 is movably connected with the accommodating portion 120, so that the other end of the sliding block 16 cooperates with the positioning member 14 to clamp the workpiece 20 to be measured between the pull rod 12 and the sliding block 16.

During operation, the force application main body of the clamping mechanism 10 is the pull rod 12, the pull rod 12 has a small width and thickness in unit volume and high flexibility, the positioning piece 14 is arranged at the end part of the pull rod 12, one end of the sliding block 16 is accommodated in the accommodating part 120 arranged at one end of the pull rod 12, and the other end of the sliding block 16 cooperates with the positioning piece 14, so that excessive extra use space is not added on the basis of the pull rod 12 by the clamping mechanism 10.

In the vertical pull test, the workpiece 20 to be tested is shown in fig. 2, and the test portion 242 is perpendicular to the camera holder 22. Clamping the workpiece 20 to be tested by using a jig (not shown), wherein the positioning element 14 penetrates through the elastic sheet through hole 240 from the outer side surface or the inner side surface of the elastic sheet 24, and the slider 16 is reset, so that the elastic sheet 24 of the workpiece 20 to be tested is clamped between the pull rod 12 and the slider 16, an upward pulling force is applied to the pull rod 12 at the moment, the positioning element 14 is driven by the pull rod 12 to apply an upward preset pulling force to the workpiece 20 to be tested, if the welding point 26 is not subjected to the preset pulling force, such as fracture, crack, and drop, the upward pulling force which can be borne by the workpiece 20 to be tested is qualified, and if the welding point 26 is subjected to the preset pulling force, such as fracture, crack, drop, and the like, the upward pulling force which can be borne by the workpiece 20 to be tested is unqualified, so as to complete the test on the vertical pulling force of the workpiece 20 to be tested; during the horizontal tension test, the workpiece 20 to be tested is bent to be parallel to the camera head bracket 22 as shown in fig. 3, by utilizing the characteristics of small overall volume and strong flexibility of the clamping mechanism 10, the positioning member 14 penetrates through the elastic sheet through hole 240 from the outer side surface of the elastic sheet 24, the slider 16 is reset, and part of the slider 16 is arranged in the gap between the testing portion 242 and the camera head bracket 22, so that the elastic sheet 24 of the workpiece 20 to be tested is clamped between the pull rod 12 and the slider 16, the positioning member 14 is driven by the pull rod 12 to apply horizontal preset tension to the workpiece 20 to be tested, if the welding spot 26 is not applied with the preset tension, the phenomena of fracture, crack, falling and the like are caused, the horizontal tension which can be borne by the workpiece 20 to be tested is indicated to be unqualified, and if the welding spot 26 is applied with the preset tension, the phenomena of fracture, crack, falling and the like are caused, thereby completing the horizontal tension test of the workpiece 20 to be tested.

Therefore, the clamping mechanism 10 is compact in structure and small in size, can be flexibly applied to connection strength tests among different structures, and is convenient to use; the horizontal tension and the vertical tension of the workpiece 20 to be tested can be tested simultaneously, and the testing efficiency is improved.

Referring to fig. 4, in an embodiment of the present application, the pull rod 12 includes a body 122 and a connecting portion 124, the receiving portion 120 is disposed in the body 122, and the connecting portion 124 is disposed in the receiving portion 120.

In this way, a movable space is formed at one end of the pull rod 12 to be engaged with the slider 16, and it is understood that in other embodiments, the receiving portion 120 may be a through hole as long as it can be movably connected with the slider 16 to provide a sufficient movable space for the slider 16.

Referring to fig. 5, the slider 16 includes a base plate 160, a movable portion 162 and a clamping portion 164, the movable portion 162 is disposed in the receiving portion 120, and the movable portion 162 is movably connected to the connecting portion 124; the movable portion 162 includes two clamping plates 1620 arranged at intervals, and the two clamping plates 1620 are arranged in parallel to the base plate 160 and form an opening groove 166. The clamping portion 164 is disposed at one end of the substrate 160, the clamping portion 164 is disposed with a clamping groove 1640, and the clamping groove 1640 is inserted into the positioning member 14 to clamp the elastic sheet 24 in the workpiece 20 to be tested between the body 122 and the clamping portion 164.

In one embodiment, the height H of the two clamping plates 1620 perpendicular to the base plate 160 is greater than the groove depth of the receiving portion 120, so that a certain gap is formed between the two clamping plates and the body 122, and the slider 16 can move up and down.

In one embodiment, the clamping plates 1620 are integrally formed with the base plate 160 to facilitate machining of the slider 16. It is understood that in other embodiments, the two clamping plates 1620 and the base plate 160 are separately formed and then welded together, as long as the opening grooves 166 in the above embodiments can be formed. In one embodiment, there may be several clamping slots 1640, and adjacent clamping slots 1640 are equally spaced. It will be appreciated that in other embodiments, one or more of the retaining grooves 1640 may be provided.

Referring to fig. 4, in an embodiment of the present application, the positioning element 14 is a cylindrical body such as a pull pin 140, one end of the pull pin 140 is connected to the body 122, and the other end of the pull pin 140 sequentially penetrates through the elastic sheet through hole 240 and the clamping groove 1640, so as to clamp the testing portion 242 of the workpiece 20 to be tested between the body 122 and the clamping portion 164.

It will be appreciated that in other embodiments, the pull pin 140 may be removably connected to the body 122, such as: one end of the pull pin 140 is connected with the thread, so long as the positioning and clamping effects on the elastic sheet 24 can be realized.

Referring to fig. 4, in an embodiment of the present application, the clamping mechanism 10 further includes a toggle assembly 110, the toggle assembly 110 includes a toggle block 1110 and a connecting member 1120, the toggle block 1110 is movably connected to the receiving portion 120; the connecting member 1120, in turn, connects the dial 1110 and the base 160 to fix the dial 1110 and the base 160.

In an embodiment of the present application, the dial 1110 includes a protrusion 1111, a fixing portion 1112 and a dial 1114, the fixing portion 1112 is perpendicularly connected to the dial 1114, and the protrusion 1111 is disposed on the fixing portion 1112 and connected to the substrate 160. The protrusion 1111 is engaged with the opening groove 166 to prevent the rotation of the dial 1110.

In one embodiment of the present invention, the connecting member 1120 is a bolt, the base plate 160 is provided with a base plate threaded hole 1600, the fixing portion 1112 is provided with a fixing threaded hole 1113, when connecting, the movable portion 162 of the sliding block 16 and the fixing portion 1112 of the shifting block 1110 are respectively placed in the receiving portion 120, and the connecting member 1120 is sequentially screwed into the fixing threaded hole 1113, the base plate threaded hole 1600, and thereby the shifting block 1110 and the sliding block 16 are connected and fixed.

It is understood that in other embodiments, the connecting member 1120 may be provided as another component, and the substrate threaded hole 1600 and the fixing threaded hole 1113 may be provided as another structure cooperating with the connecting member 1120, as long as the effect of connecting and fixing the dial 1110 and the slider 16 can be achieved.

In an embodiment of the present application, the clamping mechanism 10 further includes an elastic element 18, one end of the elastic element 18 is sleeved on the connecting portion 124, the other end of the elastic element 18 is disposed in the opening groove 166 and abuts against the protrusion portion 1111, and the connecting portion 124 cooperates with the movable portion 162 to form a movable area of the elastic element 18, so as to prevent the elastic element 18 from excessively swinging in the horizontal direction.

Thus, in the opening groove 166, the elastic member 18 acts on the projection 1111 to form an elastic pressure on the slider 16. Meanwhile, the connecting part 124 and the movable part 162 limit the movement space of the elastic element 18, so that the convenience of elastic adjustment of the elastic element 18 is improved.

In one embodiment of the present invention, the elastic member 18 is configured as a return spring, and it is understood that in other embodiments, the elastic member 18 may be configured as other components having a return function.

In one embodiment of the present application, the pull rod 12 further includes a pull block 130, the pull block 130 is disposed at one end of the pull rod 12, and the pull block 130 is provided with a pull groove 150.

In one embodiment of the present application, the pull groove 150 is a "T" shaped groove to cooperate with the force applying device to accomplish the pulling force on the pull rod 12. It is understood that in other embodiments, the pull groove 150 may be provided in other shapes as long as the force application effect on the pull rod 12 can be achieved in cooperation with the tensile force application device.

In an embodiment of the present application, the pulling block 130 includes an extending portion 132, a vertical portion 134 and a parallel portion 136, the extending portion 132 is connected to one end of the pulling rod 12, and optionally, extends horizontally from one end of the pulling rod 12, and the parallel portion 136 and the extending portion 132 are respectively connected to two ends of the vertical portion 134 vertically and are spaced from the extending portion 132 to form a pulling groove 150 with the extending portion 132. Optionally, the pull groove is T-shaped.

Referring to fig. 6, fig. 6 is a close state diagram of the clamping mechanism, at this time, the elastic element 18 is in a reset state, the elastic element 18 acts on the slider 16, and the clamping slot 1640 of the slider 16 is clamped in the positioning element 14 so as to clamp the elastic sheet 24 between the slider 16 and the pull rod 12.

Referring to fig. 7, fig. 7 is a diagram of an open state of the clamping mechanism, a manual or mechanical device is used to push the toggle portion 1114 of the toggle block 1110 to move away from the positioning element 14, the toggle portion 1114 drives the fixing portion 1112 to move away from the positioning element 14, and the clamping slot 1640 is separated from the positioning element 14, so as to implement the conversion from the state shown in fig. 6 to the state shown in fig. 7.

Referring to fig. 8, in an embodiment, the present application provides a detection apparatus 100 for testing a connection strength of a part formed by connecting two components through welding, injection molding, casting, bonding, or welding, the detection apparatus 100 includes the clamping mechanism 10 in the above embodiment, the detection apparatus 100 further includes a force applying device (not shown) and a pulling member 30, one end of the pulling member 30 is clamped in the pull groove 150, and the other end of the pulling member 30 is connected to the force applying device, so that the force applying device drives the pull rod 12 to move. Optionally, one end of the pulling element 30 is T-shaped to be fastened with a T-shaped pulling groove.

In this embodiment, the tension member 30 is a tension rod, and it can be understood that in other embodiments, the tension member 30 may include a plurality of tension rods, or may be a component whose end portion can be clamped in the pull groove 150, as long as the tension device can apply force to the tension member 30, so as to achieve the effect that the tension member 30 drives the pull rod 12 to move.

Referring to fig. 9, fig. 9 is a schematic structural diagram illustrating the clamping mechanism 10 and the workpiece 20 to be tested when performing a vertical tension test on the workpiece 20 to be tested, in which the testing portion 242 of the present embodiment is perpendicular to the camera bracket 22, a fixture (not shown) is horizontally disposed, and the fixture is used to clamp the workpiece 20 to be tested, so as to test the vertical tension of the solder joints 26. The symmetry axis of the pull groove 150 and the force application surface 60 of the positioning part 14 connected with the pull rod 12 are in the same plane, so that the force application axis 40 acting on the pull groove 150 is overlapped with the force application axis 50 of the positioning part 14, and the accuracy of detecting the vertical pulling force is improved.

Referring to fig. 10, fig. 10 illustrates a schematic structural view of the clamping mechanism 10 and the workpiece 20 to be tested when performing a horizontal tension test on the workpiece 20 to be tested, the testing portion 242 of the above embodiment is bent to be parallel to the camera bracket 22, the fixture is rotated by 90 degrees, an upward tension is applied to the testing portion 242 through the clamping mechanism 10, so as to test the horizontal tension of the welding spot 26, and at this time, the force application axis 40 acting on the pull groove 150 coincides with the force application axis 50 of the positioning element 14, so that the accuracy of detecting the horizontal tension is improved.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims (10)

1. A fixture for holding a workpiece to be tested, comprising:

a pull rod provided with a containing part;

the positioning piece is arranged at one end of the pull rod and used for positioning a workpiece to be measured;

and one end of the sliding block is movably connected with the accommodating part so that the other end of the sliding block and the positioning part cooperatively act to clamp the workpiece to be tested between the pull rod and the sliding block.

2. The clamping mechanism of claim 1,

the draw bar includes:

the accommodating part is arranged on the body;

a connecting part arranged in the accommodating part;

the slider includes:

a substrate;

the movable part is arranged in the accommodating part, is connected with the substrate and is movably connected with the connecting part;

the clamping part is arranged at one end of the substrate, a clamping groove is formed in the clamping part, and the clamping groove is clamped in the positioning piece so as to clamp the workpiece to be tested between the body and the clamping part.

3. The fixture of claim 2, further comprising a toggle assembly, the toggle assembly comprising:

the shifting block is movably connected with the accommodating part;

and the connecting piece is sequentially connected with the shifting block and the substrate so as to fix the shifting block and the substrate.

4. The clamping mechanism of claim 3, wherein said paddle comprises:

a toggle part;

the fixing part is vertically connected with the shifting part;

and the bulge part is arranged on the fixing part and is connected with the substrate through the connecting piece.

5. The clamping mechanism of claim 4, wherein said movable portion comprises:

two splint, two the splint interval is located the base plate is in order to form the open slot, the bellying is located the open slot, connecting portion with open slot swing joint.

6. The clamping mechanism of claim 5, further comprising:

the elastic piece, the one end cover of elastic piece is located connecting portion, the other end of elastic piece is located in the open slot and butt extremely the bellying.

7. The clamping mechanism as recited in claim 1, wherein said tie bar further comprises a pull block, said pull block being disposed at one end of said tie bar, said pull block being provided with a pull groove.

8. The clamping mechanism of claim 7, wherein said pull block comprises:

an extension part connected with one end of the pull rod;

a vertical part vertically connected with the extension part;

the parallel part and the extending part are respectively and vertically connected to two ends of the vertical part and are arranged in parallel with the extending part at intervals to form the pull groove with the extending part.

9. The clamping mechanism of claim 8 wherein said pull channel is T-shaped.

10. A detection apparatus, comprising the clamping mechanism of any one of claims 7 to 9, further comprising:

a force application device;

one end of the tension piece is clamped in the pull groove, and the other end of the tension piece is connected with the force application device, so that the force application device drives the pull rod to move.

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