Positioning jig and detection conveying line

Abstract

The utility model provides a positioning jig and a detection conveying line. The positioning jig comprises a jig body, a fixed part, a movable part, a first connecting part and an elastic part. A mounting groove is formed in the top wall of the jig body, a first mounting hole communicated with the mounting groove is formed in one side of the jig body, and a first abutting part is arranged on the inner side wall of the first mounting hole. The fixing piece is installed on the top of the jig body. The movable part is located on one side of the fixed part. The first connecting piece comprises a connecting part and a second abutting part, the connecting part penetrates through the first mounting hole and extends into the mounting groove, and the connecting part is connected with the movable piece. The elastic piece is sleeved on the outer side wall of the connecting part, and two ends of the elastic piece are respectively abutted against and matched with the first abutting part and the second abutting part. The jig body can separate the elastic piece and the first connecting piece from the external object, so that the probability that the elastic piece and the first connecting piece are subjected to external force in the detection process is reduced, and the reliability of the positioning jig and the detection conveying line is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning detection, in particular to a positioning fixture and a detection conveyor line. Background Art

[0002] In the production process of pole columns, a detection conveyor line is usually used to convey pole pieces for appearance detection based on machine vision. In order to ensure the accuracy of the appearance detection of the pole pieces, the pole pieces need to be positioned on the conveyor belt through a positioning fixture. However, in the actual detection process, the positioning fixture is prone to accidentally open under the action of external force, resulting in low reliability. Summary of the Utility Model

[0003] Based on this, in view of the problem that the positioning fixture in the prior art is prone to accidentally open under the action of external force and has low reliability, it is necessary to provide a positioning fixture and a detection conveyor line.

[0004] The technical solution is as follows:

[0005] On the one hand, a positioning fixture is provided, including:

[0006] A fixture body, an installation groove is provided on the top wall of the fixture body, a first installation hole communicating with the installation groove is provided on one side of the fixture body, and a first abutting portion is provided on the inner side wall of the first installation hole;

[0007] A fixing member, which is installed on the top of the fixture body;

[0008] A movable member, which is located on one side of the fixing member;

[0009] A first connecting member, the first connecting member includes a connecting portion and a second abutting portion connected to one end of the connecting portion, the other end of the connecting portion passes through the first installation hole and extends into the installation groove, and the other end of the connecting portion is connected to the movable member;

[0010] An elastic member, which is sleeved on the outer side wall of the connecting portion, and both ends of the elastic member are in abutting cooperation with the first abutting portion and the second abutting portion respectively;

[0011] When the first connecting member is subjected to a thrust force along the axis of the first installation hole and towards the installation groove, the connecting portion drives the movable member to move away from the fixing member, so as to form a clamping and positioning space between the fixing member and the movable member, and the second abutting portion squeezes the elastic member; when the thrust force is withdrawn, the elastic member resets, and drives the movable member to move towards the fixing member through the second abutting portion and the connecting portion, so that the fixing member and the movable member cooperate to clamp and position the workpiece to be positioned in the clamping and positioning space.

[0012] The technical solution will be further described as follows:

[0013] In one embodiment, a groove is provided on one side of the fixture body, the first mounting hole is disposed on the bottom wall of the groove, and the second abutting portion is located within the groove.

[0014] In one embodiment, the positioning fixture further includes a first guiding sleeve, the connecting portion passes through the first guiding sleeve, and the first guiding sleeve is installed in the first mounting hole and is used for guiding the connecting portion.

[0015] In one embodiment, the first mounting hole includes a first hole section, a second hole section, and a third hole section that are sequentially communicated, the third hole section is communicated with the mounting groove, the inner diameter of the first hole section is greater than the inner diameter of the second hole section, the inner diameter of the second hole section is greater than the inner diameter of the third hole section, the end face of the second hole section close to the first hole section is set as the second abutting portion, the end face of the third hole section close to the second hole section is set as the third abutting portion, the first guiding sleeve is installed in the second hole section and is in abutting fit with the third abutting portion.

[0016] In one embodiment, at least one first positioning groove is provided on the side of the fixing member close to the movable member, each first positioning groove extends from the top wall of the fixing member to the bottom wall of the fixing member, at least one second positioning groove is provided on the side of the movable member close to the fixing member, each second positioning groove extends from the top wall of the movable member to the bottom wall of the movable member, each of the first positioning grooves and each of the second positioning grooves are correspondingly arranged, so that the inner side walls of each of the first positioning grooves and the inner side walls of each of the second positioning grooves correspondingly enclose to form the clamping and positioning space, and are all used for positioning and cooperating with the workpiece to be positioned within the clamping and positioning space.

[0017] In one embodiment, the positioning fixture further includes a mounting member, the mounting member is movably installed in the mounting groove and is correspondingly connected to the connecting portion, and the movable member is installed on the mounting member.

[0018] In one embodiment, the fixing member is detachably connected to the fixture body, and the movable member is detachably connected to the mounting member;

[0019] And / or, a positioning portion is provided on the mounting member, and the positioning portion is in positioning cooperation with the movable member.

[0020] In one embodiment, at least one second mounting hole is provided on a side of the fixture body away from the first mounting hole. Each of the second mounting holes extends along the axial direction of the first mounting hole and communicates with the mounting groove. The positioning fixture further includes a second connecting member and a second guiding sleeve. The number of the second connecting members and the number of the second guiding sleeves are the same as the number of the second mounting holes. Each of the second guiding sleeves is correspondingly installed in each of the second mounting holes. Each of the second connecting members correspondingly passes through each of the second guiding sleeves and is connected to the mounting member.

[0021] On the other hand, a detection conveyor line is provided, which includes a conveying mechanism and at least one of the positioning fixtures. Each positioning fixture is installed on the conveying mechanism.

[0022] In one embodiment, the conveying mechanism includes a driving member, a driving wheel, a driven wheel and a conveyor belt. The driving member is in transmission connection with the driving wheel. The conveyor belt is sleeved on the outer side walls of the driving wheel and the driven wheel. Each of the positioning fixtures is installed on the outer side wall of the conveyor belt along the circumferential direction of the conveyor belt.

[0023] For the positioning fixture and the detection conveyor line in the above embodiments, when it is necessary to place the to-be-positioned part in the clamping and positioning space or take out the to-be-positioned part in the clamping and positioning space, a thrust is applied to the first connecting member, so that the connecting part drives the movable part to move in a direction away from the fixed part, so as to form a clamping and positioning space between the fixed part and the movable part. At the same time, the second abutting part presses the elastic member, and the elastic member is in a compressed state. When the thrust is withdrawn, the elastic member resets and drives the movable part to move in a direction close to the fixed part through the second abutting part and the connecting part, so that the fixed part and the movable part cooperate to clamp and position the to-be-positioned part in the clamping and positioning space. Compared with the positioning fixture in the prior art, the elastic member and the first connecting member in the present application are at least partially hidden in the fixture body, so that the fixture body can separate the elastic member and the first connecting member from external objects, thereby reducing the probability that the elastic member and the first connecting member are affected by external forces during the detection process, ensuring that the position of the movable part relative to the fixed part remains fixed, so as to be able to cooperate to stably and reliably position the to-be-positioned part at a specified position on the fixture body, and improving the reliability of the positioning fixture and the detection conveyor line. Description of the Drawings

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of a positioning jig for a clamping and positioning of a to-be-positioned part in an embodiment.

[0027] Figure 2 For Figure 1 it is a cross-sectional view of the positioning jig.

[0028] Figure 3 For Figure 1 it is a top view of the positioning device.

[0029] Figure 4 For Figure 1 it is a schematic structural diagram of the positioning device after removing the to-be-positioned part.

[0030] Figure 5 For Figure 1 it is a schematic structural diagram of the jig body in

[0031] Figure 6 It is a schematic structural diagram of a detection conveyor line in an embodiment.

[0032] Explanation of reference numerals:

[0033] 10, positioning jig; 100, jig body; 110, installation groove; 120, first installation hole; 121, first hole section; 122, second hole section; 123, third hole section; 130, first abutting part; 140, groove; 150, third abutting part; 160, second installation hole; 200, fixing part; 210, first positioning groove; 300, movable part; 310, second positioning groove; 400, first connecting part; 410, connecting part; 420, second abutting part; 500, elastic part; 600, first guiding sleeve; 700, installation part; 710, positioning part; 800, second connecting part; 900, second guiding sleeve; 20, to-be-positioned part; 30, conveying mechanism. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0035] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, in one embodiment, a positioning jig 10 is provided, which includes a jig body 100, a fixing member 200, a movable member 300, a first connecting member 400 and an elastic member 500. Among them, an installation groove 110 is provided on the top wall of the jig body 100, a first installation hole 120 communicating with the installation groove 110 is provided on one side of the jig body 100, and a first abutting portion 130 is provided on the inner side wall of the first installation hole 120. The fixing member 200 is installed on the top of the jig body 100. The movable member 300 is located on one side of the fixing member 200. The first connecting member 400 includes a connecting portion 410 and a second abutting portion 420 connected to one end of the connecting portion 410. The other end of the connecting portion 410 passes through the first installation hole 120 and extends into the installation groove 110, and the other end of the connecting portion 410 is connected to the movable member 300. The elastic member 500 is sleeved on the outer side wall of the connecting portion 410, and both ends of the elastic member 500 are in abutting cooperation with the first abutting portion 130 and the second abutting portion 420 respectively. When the first connecting member 400 is subjected to a thrust force along the axis of the first installation hole 120 and in the direction towards the installation groove 110 (such as Figure 2 the direction shown by A in

[0036] ), the connecting portion 410 drives the movable member 300 to move in a direction away from the fixing member 200, so as to form a clamping and positioning space between the fixing member 200 and the movable member 300, and the second abutting portion 420 compresses the elastic member 500; when the thrust force is withdrawn, the elastic member 500 resets, and drives the movable member 300 to move in a direction close to the fixing member 200 through the second abutting portion 420 and the connecting portion 410, so that the fixing member 200 and the movable member 300 cooperate to clamp and position the workpiece to be positioned 20 in the clamping and positioning space.In the positioning fixture 10 in the above embodiments, when it is necessary to place the workpiece to be positioned 20 in the clamping and positioning space or take out the workpiece to be positioned 20 in the clamping and positioning space, a thrust is applied to the first connecting member 400, so that the connecting portion 410 drives the movable member 300 to move away from the fixed member 200, so as to form a clamping and positioning space between the fixed member 200 and the movable member 300. At the same time, the second abutting portion 420 presses the elastic member 500, and the elastic member 500 is in a compressed state. When the thrust is withdrawn, the elastic member 500 resets, and drives the movable member 300 to move towards the fixed member 200 through the second abutting portion 420 and the connecting portion 410, so that the fixed member 200 and the movable member 300 cooperate to clamp and position the workpiece to be positioned 20 in the clamping and positioning space. Compared with the positioning fixture in the prior art, the elastic member 500 and the first connecting member 400 in the present application are at least partially hidden in the fixture body 100, so that the fixture body 100 can separate the elastic member 500 and the first connecting member 400 from external objects, thereby reducing the probability that the elastic member 500 and the first connecting member 400 are affected by external forces during the detection process, ensuring that the position of the movable member 300 relative to the fixed member 200 remains fixed, so as to be able to cooperate to stably and reliably position the workpiece to be positioned 20 at a specified position on the fixture body 100, and improving the reliability of the positioning fixture 10.

[0037] Among them, the movable member 300 can be set as a movable plate, a movable block, a movable seat or other movable structures. The first connecting member 400 can be set as a connecting rod, a connecting pipe or other connecting structures. The elastic member 500 can be set as a spring, an elastic sleeve or other elastic structures. The fixed member 200 can be set as a fixing plate, a fixing block, a fixing seat or other fixed structures. The fixed member 200 can be installed on the top of the fixture body 100 by screwing, clamping, plugging or other detachable connection methods. Specifically in this embodiment, the fixed member 200 is located on one side of the installation groove 110 close to the first installation hole 120. The projection of the fixed member 200 in the vertical direction is located outside the installation groove 110. The workpiece to be positioned 20 can be set as a pole.

[0038] Specifically in the present embodiment, driving mechanisms (such as telescopic motors, telescopic cylinders or telescopic hydraulic cylinders, etc.) are provided at both the feeding station and the discharging station of the workpiece to be positioned 20, and the driving mechanisms are correspondingly arranged with the second abutting portion 420, so as to be able to apply a thrust along the axis of the first installation hole 120 and towards the installation groove 110 direction to the second abutting portion 420.

[0039] Such as Figure 1 、 Figure 2 and Figure 5As shown, optionally, a groove 140 is provided on one side of the fixture body 100. The first mounting hole 120 is provided on the bottom wall of the groove 140, and the second abutting portion 420 is located within the groove 140. In this way, the entire elastic member 500 and the entire first connecting member 400 can be hidden within the fixture body 100, ensuring that the elastic member 500 and the first connecting member 400 are not affected by external forces during the detection process, and improving the reliability of the positioning fixture 10.

[0040] Specifically in this embodiment, the groove 140 extends from the top wall of the fixture body 100 to the bottom wall of the fixture body 100. The outer diameter of the first abutting portion 130 is greater than the inner diameter of the first mounting hole 120.

[0041] As Figure 1 and Figure 2 As shown, in one embodiment, the positioning fixture 10 further includes a first guiding sleeve 600. The connecting portion 410 passes through the first guiding sleeve 600. The first guiding sleeve 600 is installed in the first mounting hole 120 and is used to guide the connecting portion 410. In this way, the first guiding sleeve 600 can play a guiding role for the connecting portion 410, ensuring that the first connecting member 400 can drive the movable member 300 to reciprocate in a direction close to or away from the fixed member 200, and improving the reliability of the positioning fixture 10.

[0042] Specifically in this embodiment, the inner side wall of the first guiding sleeve 600 is smooth, reducing the friction between the first guiding sleeve 600 and the connecting portion 410 and ensuring the smooth movement of the first connecting member 400.

[0043] As Figure 1 and Figure 2 As shown, optionally, the first mounting hole 120 includes a first hole section 121, a second hole section 122, and a third hole section 123 that are sequentially connected. The third hole section 123 communicates with the mounting groove 110. The inner diameter of the first hole section 121 is greater than the inner diameter of the second hole section 122, and the inner diameter of the second hole section 122 is greater than the inner diameter of the third hole section 123. The end face of the second hole section 122 close to the first hole section 121 is provided as the second abutting portion 420, and the end face of the third hole section 123 close to the second hole section 122 is provided as the third abutting portion 150. The first guiding sleeve 600 is installed in the second hole section 122 and is in abutting cooperation with the third abutting portion 150. In this way, the convenience of assembling the positioning fixture 10 is improved.

[0044] As Figure 1 and Figure 4As shown, optionally, at least one first positioning groove 210 is provided on one side of the fixing member 200 close to the moving member 300. Each first positioning groove 210 extends from the top wall of the fixing member 200 to the bottom wall of the fixing member 200. At least one second positioning groove 310 is provided on one side of the moving member 300 close to the fixing member 200. Each second positioning groove 310 extends from the top wall of the moving member 300 to the bottom wall of the moving member 300. Each first positioning groove 210 and each second positioning groove 310 are correspondingly arranged, so that the inner side walls of each first positioning groove 210 and the inner side walls of each second positioning groove 310 correspondingly enclose a clamping and positioning space, and are all used for positioning and cooperating with the workpiece 20 to be positioned in the clamping and positioning space. In this way, the positioning fixture 10 can simultaneously clamp and position multiple workpieces 20 to be positioned, improving the positioning efficiency of the positioning fixture 10.

[0045] Among them, the numbers of the first positioning grooves 210 and the second positioning grooves 310 can both be flexibly adjusted according to actual usage needs. Specifically in this embodiment, the numbers of both the first positioning grooves 210 and the second positioning grooves 310 are two. The first positioning grooves 210 and the second positioning grooves 310 are both arranged in a trapezoidal shape, so that the two inner side walls of the first positioning groove 210 and the two inner side walls of the second positioning groove 310 can cooperate to perform four-point clamping and positioning on the workpiece 20 to be positioned.

[0046] As Figure 1 , Figure 2 and Figure 5 shown, in one embodiment, the positioning fixture 10 further includes a mounting member 700. The mounting member 700 is movably mounted in the mounting groove 110 and is correspondingly connected to the connecting portion 410. The moving member 300 is mounted on the mounting member 700. In this way, the first connecting member 400 can drive the moving member 300 to move through the mounting member 700, improving the convenience of assembling the positioning fixture 10.

[0047] Specifically in this embodiment, the mounting member 700 can be set as a mounting seat or a mounting block. The mounting member 700 can reciprocally move in the mounting groove 110 along the axial direction of the first mounting hole 120. The moving member 300 can be mounted on the mounting member 700 by means of screwing, clamping, plugging or other detachable connection methods. Both the moving member 300 and the fixing member 200 are set in a detachable manner, so that the shapes and sizes of the moving member 300 and the fixing member 200 can be flexibly adjusted according to the shape and size of the workpiece 20 to be positioned, that is, the positioning fixture 10 can be applicable to workpieces 20 to be positioned with different shapes and sizes, improving the practicality of the positioning fixture 10.

[0048] As Figure 1 and Figure 2As shown, optionally, the mounting member 700 is provided with a positioning portion 710, and the positioning portion 710 is in positioning cooperation with the movable member 300. In this way, the positioning portion 710 can play a role in positioning the movable member 300, ensuring that the movable member 300 can be quickly and accurately moved to the installation position on the mounting member 700, and improving the convenience of assembling the positioning jig 10.

[0049] As Figure 1 , Figure 2 and Figure 3 shown, optionally, at least one second mounting hole 160 is provided on the side of the jig body 100 away from the first mounting hole 120. Each second mounting hole 160 extends along the axial direction of the first mounting hole 120 and is communicated with the mounting groove 110. The positioning jig 10 further includes a second connecting member 800 and a second guide sleeve 900. The number of the second connecting members 800 and the number of the second guide sleeves 900 are the same as the number of the second mounting holes 160. Each second guide sleeve 900 is correspondingly installed in each second mounting hole 160. Each second connecting member 800 correspondingly passes through each second guide sleeve 900 and is connected to the mounting member 700. In this way, the second mounting hole 160 can be used to install the second guide sleeve 900, so that the second guide sleeve 900 can guide the second connecting member 800, ensuring that the mounting member 700 connected to the second connecting member 800 can drive the movable member 300 to reciprocate in the direction of approaching or departing from the fixed member 200, and improving the reliability of the positioning jig 10.

[0050] Specifically in this embodiment, the first guide sleeve 600 is in interference fit with the second hole section 122. The second mounting hole 160 is provided as a stepped hole. The inner diameter of the end of the second mounting hole 160 close to the mounting groove 110 is smaller than the inner diameter of the end of the second mounting hole 160 away from the mounting groove 110. The second guide sleeve 900 is in interference fit with the end of the second mounting hole 160 away from the mounting groove 110. The number of the second mounting holes 160 is two, and the first mounting hole 120 is located between the two second mounting holes 160.

[0051] As Figure 6 shown, in one embodiment, a detection conveyor line is provided, including a conveying mechanism 30 and at least one positioning jig 10 as described in any of the above embodiments. Each positioning jig 10 is installed on the conveying mechanism 30. In this way, the conveying mechanism 30 can drive the positioning jig 10 to move, so as to facilitate the appearance inspection of the workpiece to be positioned 20 on the positioning jig 10.

[0052] Among them, the conveying mechanism 30 can be set as a belt conveying mechanism or a chain conveying mechanism. The positioning jig 10 can be installed on the conveying mechanism 30 by means of screwing, clamping, plugging or other fixed connection methods.

[0053] Optionally, the conveying mechanism 30 includes a driving member, a driving wheel, a driven wheel and a conveyor belt. The driving member is in transmission connection with the driving wheel. The conveyor belt is sleeved on the outer side walls of the driving wheel and the driven wheel. Each positioning jig 10 is installed on the outer side wall of the conveyor belt along the circumferential direction of the conveyor belt.

[0054] Specifically in this embodiment, internal teeth are provided on the entire inner side wall of the conveyor belt, external teeth are provided on the entire outer side wall of the driving wheel and the entire outer side wall of the driven wheel, and the internal teeth and the external teeth are meshed correspondingly to drive the positioning jig 10 to move circularly along the circumferential direction of the conveyor belt.

[0055] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0056] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present application, unless otherwise clearly specified and limited, if there are terms such as "install", "connect", "connect", "fix", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0058] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0060] It should also be understood that when interpreting the connection relationship or position relationship of elements, although not explicitly described, the connection relationship and position relationship are interpreted to include an error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximate" or "substantially" can mean within one or more standard deviations, which is not limited herein.

[0061] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0062] The above embodiments only represent several implementation manners of this application, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application should be subject to the appended claims.

Claims

1. A positioning fixture, characterized in that: include: A fixture body, wherein a mounting groove is provided on the top wall of the fixture body, a first mounting hole communicating with the mounting groove is provided on one side of the fixture body, and a first abutment portion is provided on the inner side wall of the first mounting hole; A fixing member, the fixing member is installed on the top of the fixture body; A movable part, the movable part is located on one side of the fixed part; A first connecting member, the first connecting member comprises a connecting portion and a second abutting portion connected to one end of the connecting portion, the other end of the connecting portion passes through the first mounting hole and extends into the mounting groove, and the other end of the connecting portion is connected to the movable member; An elastic member, wherein the elastic member is sleeved on the outer side wall of the connecting portion, and two ends of the elastic member are respectively in contact with the first contact portion and the second contact portion; When the first connecting member is subjected to a thrust along the axis of the first mounting hole and in the direction of the mounting groove, the connecting portion drives the movable member to move in a direction away from the fixed member, so that a clamping and positioning space is formed between the fixed member and the movable member, and the second abutting portion squeezes the elastic member; when the thrust is removed, the elastic member is reset, and the movable member is driven to move in a direction close to the fixed member through the second abutting portion and the connecting portion, so that the fixed member and the movable member cooperate to clamp and position the member to be positioned in the clamping and positioning space.

2. The positioning fixture according to claim 1, characterized in that: A groove is provided on one side of the fixture body, the first mounting hole is arranged on the bottom wall of the groove, and the second abutting portion is located in the groove.

3. The positioning fixture according to claim 1, characterized in that: The positioning fixture also includes a first guide sleeve, the connecting portion is inserted through the first guide sleeve, the first guide sleeve is installed in the first installation hole, and is used to guide the connecting portion.

4. The positioning fixture according to claim 3, characterized in that: The first mounting hole includes a first hole section, a second hole section and a third hole section which are connected in sequence, the third hole section is connected to the mounting groove, the inner diameter of the first hole section is greater than the inner diameter of the second hole section, the inner diameter of the second hole section is greater than the inner diameter of the third hole section, the end surface of the second hole section close to the first hole section is set as the second interference portion, the end surface of the third hole section close to the second hole section is set as the third interference portion, the first guide sleeve is installed in the second hole section and interferes with the third interference portion.

5. The positioning fixture according to claim 1, characterized in that: The fixed part is provided with at least one first positioning groove on a side close to the movable part, and each first positioning groove extends from the top wall of the fixed part to the bottom wall of the fixed part. The movable part is provided with at least one second positioning groove on a side close to the fixed part, and each second positioning groove extends from the top wall of the movable part to the bottom wall of the movable part. Each first positioning groove is corresponding to each second positioning groove, so that the inner side wall of each first positioning groove and the inner side wall of each second positioning groove are correspondingly arranged to form the clamping positioning space, and are both used for positioning and cooperating with the part to be positioned in the clamping positioning space.

6. The positioning jig according to any one of claims 1 to 5, characterized in that: The positioning fixture also includes a mounting piece, which is movably mounted in the mounting groove and correspondingly connected to the connecting portion, and the movable piece is mounted on the mounting piece.

7. The positioning fixture according to claim 6, characterized in that: The fixing member is detachably connected to the fixture body, and the movable member is detachably connected to the mounting member; And / or, a positioning portion is provided on the mounting member, and the positioning portion is positioned and matched with the movable member.

8. The positioning fixture according to claim 6, characterized in that: At least one second mounting hole is provided on a side of the fixture body away from the first mounting hole, each of the second mounting holes extends along the axial direction of the first mounting hole and is connected to the mounting groove, the positioning fixture also includes a second connecting member and a second guide sleeve, the number of the second connecting members and the number of the second guide sleeves are the same as the number of the second mounting holes, each of the second guide sleeves is correspondingly installed in each of the second mounting holes, each of the second connecting members passes through each of the second guide sleeves and is connected to the mounting member.

9. A detection conveyor line, characterized in that: It comprises a conveying mechanism and at least one positioning fixture as claimed in any one of claims 1 to 8, and each positioning fixture is installed on the conveying mechanism.

10. The detection conveyor line according to claim 9, characterized in that: The conveying mechanism includes a driving member, a driving wheel, a driven wheel and a conveyor belt. The driving member is connected to the driving wheel in a transmission manner. The conveyor belt is sleeved on the outer side wall of the driving wheel and the outer side wall of the driven wheel. Each of the positioning fixtures is installed on the outer side wall of the conveyor belt along the circumference of the conveyor belt.

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