Positioning mechanism

Abstract

The invention discloses a positioning mechanism. The positioning mechanism comprises a first support, a supporting assembly, two second supports and two positioning assemblies. After the target object is located on the supporting assembly, the two positioning assemblies can conduct contact positioning on the two ends, in the first direction, of the target object. A positioning part and a supporting shaft are arranged in the positioning assembly, and the positioning part is connected to the end of the supporting shaft in a sleeving mode and rotationally connected with the supporting shaft. Therefore, in the rotating process of the target object, the positioning parts in the two positioning assemblies can be driven by the rotating target object, so that the two positioning assemblies and the target object are relatively static, and the risk that the contact surface of the target object and the positioning mechanism is damaged can be reduced; and the situation that the target object cannot rotate due to the fact that the target object is limited too tightly in a mechanical limiting mode is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of positioning equipment, and in particular to a positioning mechanism. Background Art

[0002] Currently, the positioning mechanism directly fixes and restricts the target object by means of mechanical limiting. Therefore, for the target object that needs to be rotated, the positioning mechanism does not follow the target object during the rotation of the target object.

[0003] However, during the rotation of the target object, the contact surface between the positioning mechanism and the target object is easily damaged. It is also possible that the positioning mechanism limits the target object too tightly, making it impossible for the target object to rotate. Summary of the invention

[0004] The embodiment of the present application provides a positioning mechanism. The technical solution is as follows:

[0005] The positioning mechanism comprises: a first bracket, a supporting assembly, two second brackets and two positioning assemblies;

[0006] The support assembly is located on the first bracket, and the support assembly is used to support a cylindrical target object;

[0007] The two second brackets are respectively located on both sides of the first bracket in a first direction, and the first direction is parallel to the axial direction of the target object;

[0008] The two positioning assemblies are respectively located on the two second brackets, and each of the positioning assemblies comprises: a support shaft and a positioning portion, the support shaft is connected to the second bracket, and the positioning portion is sleeved on the end of the support shaft and is rotatably connected to the support shaft;

[0009] Among them, at least one of the positioning components is configured to: after the target object is located on the supporting component, move in a direction toward the target object, so that the two positioning parts of the two positioning components respectively abut against the two ends of the target object and rotate synchronously with the target object.

[0010] Optionally, the two positioning components are: a first positioning component and a second positioning component;

[0011] The second bracket corresponding to the first positioning assembly comprises: a bracket body and a mounting plate, the mounting plate is connected to the bracket body, and the mounting plate can move relative to the bracket body along the first direction, and the support shaft in the first positioning assembly is fixed on the mounting plate;

[0012] The supporting shaft in the second positioning assembly is fixed on the corresponding second bracket.

[0013] Optionally, the second bracket corresponding to the first positioning assembly further includes: at least one buffer elastic portion, and two ends of the at least one buffer elastic portion in the first direction are elastically connected to the bracket body and the mounting plate respectively.

[0014] Optionally, the bracket body has a fixing plate on one side facing the mounting plate, and the fixing plate has a mounting through hole; the buffer elastic part includes: a floating rod, and an elastic element sleeved on the floating rod;

[0015] One end of the floating rod is fixedly connected to the mounting plate, and the other end of the floating rod has a limit piece. The fixing plate is sleeved on the floating rod through a mounting through hole, and the limit piece is located on the side of the fixing plate away from the mounting plate; the elastic element is located between the mounting plate and the fixing plate, and the two ends of the elastic element are respectively abutted against the mounting plate and the fixing plate.

[0016] Optionally, the positioning mechanism further includes: a first driving assembly, the first driving assembly is fixed to the bracket body, and the first driving assembly is connected to the first positioning assembly;

[0017] The first driving assembly is configured to: after the target object is located on the supporting assembly, drive the first positioning assembly to move in a direction toward the target object until a side of the target object facing away from the first positioning assembly contacts a positioning portion in the second positioning assembly.

[0018] Optionally, the positioning assembly further includes: a rotating bearing, the rotating bearing is mounted on the end of the supporting shaft, and the positioning portion is sleeved outside the rotating bearing.

[0019] Optionally, a side of the positioning portion facing away from the supporting shaft is a supporting plane; a side of the positioning portion facing away from the supporting plane has a mounting groove, and at least a portion of the rotary bearing is located in the mounting groove.

[0020] Optionally, the support assembly comprises: a plurality of rolling support parts, the plurality of rolling support parts can be divided into two groups of rolling support parts, and one group of rolling support parts includes at least one rolling support part;

[0021] Wherein, the two groups of rolling support parts are distributed in a second direction, and the target object can be distributed between the two groups of rolling support parts in the second direction; and the second direction intersects with the first direction.

[0022] Optionally, the first bracket includes: a first sub-bracket and a second sub-bracket spaced apart in the first direction;

[0023] A group of the rolling support parts includes two rolling support parts distributed in the first direction; and in the same group of the rolling support parts, one rolling support part is connected to the first sub-bracket, and the other rolling support part is connected to the second sub-bracket.

[0024] Optionally, the positioning mechanism further comprises: a second driving assembly, the second driving assembly is fixed on the first bracket, and the second driving assembly is connected to the supporting assembly;

[0025] The second driving assembly is configured to: after the target object is located on the supporting assembly, drive the supporting assembly to move in a direction approaching the two positioning assemblies until the target object is located between the two positioning assemblies in the first direction.

[0026] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0027] After the target object is located on the support assembly, the two positioning assemblies can contact and position the two ends of the target object in the first direction. The positioning assembly is provided with a positioning portion and a support shaft, and the positioning portion is sleeved on the end of the support shaft and is rotatably connected to the support shaft. Therefore, during the rotation of the target object, the positioning portions in the two positioning assemblies can be driven by the rotating target object, so that the two positioning assemblies and the target object are relatively still, thereby reducing the risk of damage to the contact surface between the target object and the positioning mechanism, and avoiding the situation where the mechanical limit method is too tight on the target object, resulting in the target object being unable to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of a positioning mechanism provided in an embodiment of the present application;

[0030] Figure 2 yes Figure 1 A partial top view of the positioning mechanism at Q1 is provided;

[0031] Figure 3 is an exploded schematic diagram of a positioning component provided in an embodiment of the present application;

[0032] Figure 4 yes Figure 3 A structural schematic diagram of a positioning part in a provided positioning assembly;

[0033] Figure 5 is a schematic diagram of the three-dimensional structure of another positioning mechanism provided in an embodiment of the present application;

[0034] Figure 6 is a schematic diagram of the three-dimensional structure of another positioning mechanism provided in an embodiment of the present application;

[0035] Figure 7 yes Figure 6 A partial enlarged view of the positioning mechanism at Q2 is provided.

[0036] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0038] In the related art, instantaneous positioning or hard limit positioning is usually used for positioning the target object. Among them, instantaneous positioning means that the positioning mechanism and the target object are in contact and positioned for only a very short time, and the positioning mechanism will withdraw immediately after the positioning is completed. Therefore, for the target object that needs to be rotated, this positioning method has the risk of displacement of the target object during the rotation process, resulting in poor final process effect. In addition, instantaneous positioning is difficult to implement for the calibration of the positioning mechanism, and it is difficult to ensure the consistency of the stop position of the positioning mechanism each time. Hard limit positioning means that the positioning mechanism directly fixes and restricts the target object through a mechanical limit method, and the positioning component does not follow the target object during the rotation process. Therefore, for the target object that needs to be rotated, this positioning method has the problem of damage to the contact surface of the target object during the rotation process, which will lead to other defects. In addition, hard limit positioning may result in a situation where the limit is too tight and the target object cannot be rotated.

[0039] The present application embodiment provides a positioning mechanism, please refer to Figure 1 and Figure 2 , Figure 1 is a three-dimensional structural diagram of a positioning mechanism provided in an embodiment of the present application, Figure 2 yes Figure 1 A partial top view of the positioning mechanism at Q1 is provided. The positioning mechanism 000 comprises: a first bracket 100, a supporting assembly 200, two second brackets 300 and two positioning assemblies 400.

[0040] In the embodiment of the present application, the positioning mechanism 000 can be used to center the target object A that needs to be rotated. For example, the target object A can be a cylindrical battery. In the gluing process of the cylindrical battery, the cylindrical battery needs to be rotated to ensure that its surface can be covered by the adhesive layer. For this reason, the positioning mechanism 000 can be used to rotate and position the cylindrical battery in the gluing process. However, the present application is not limited to this.

[0041] The support assembly 200 is located on the first bracket 100, and the support assembly 200 is used to support a cylindrical target object A. Here, the first bracket 100 is used to install the support assembly 200, and the present application does not limit the specific structure of the first bracket 100. The support assembly 200 can carry the target object A that needs to be rotated. For example, the contact surface between the support assembly 200 and the target object A can be a curved surface, and the support assembly 200 can be a cylindrical structure, so that the support assembly 200 can be prevented from hindering the rotation of the target object A.

[0042] It should be noted that the embodiment of the present application does not strictly limit the shape of the target object A. For target objects A of other shapes, the positioning mechanism 000 can also position the target object A during its rotation.

[0043] The two second brackets 300 are respectively located on both sides of the first bracket 100 in the first direction X, and the first direction X is parallel to the axial direction of the target object A. Here, the second bracket 300 can be used to install the positioning assembly 400, and the present application does not limit the specific structure of the second bracket 300.

[0044] The two positioning components 400 are respectively located on the two second brackets 300, and each positioning component 400 includes: a support shaft 410 and a positioning portion 420, the support shaft 410 is connected to the second bracket 300, and the positioning portion 420 is sleeved on the end of the support shaft 410 and is rotatably connected to the support shaft 410. Here. The positioning portion 420 can rotate with the support shaft 410 as the rotation axis, so that during the rotation of the target object A, based on the friction between the positioning portion 420 and the target object A, the positioning portion 420 contacts the target object A and can rotate synchronously with the target object A. Exemplarily, the material of the positioning portion 420 may include: polyetheretherketone, or ceramic.

[0045] Among them, at least one positioning component 400 is configured to: after the target object A is located on the support component 200, move in the direction toward the target object A, so that the two positioning parts 420 in the two positioning components 400 respectively abut against the two ends of the target object A and rotate synchronously with the target object A.

[0046] Figure 1The positioning mechanism 000 may be in a state before positioning. Before positioning, the distance between the two positioning components 400 is relatively large, and there is a certain distance between the two positioning components 400 and the target object A. Figure 2 The positioning mechanism 000 can be in a state after positioning. During the positioning process, at least one of the two positioning components 400 can move in a direction toward the target object A to ensure that the two positioning parts 420 are respectively abutted against the two ends of the target object A, thereby limiting the displacement of the target object A in the first direction X, and the two positioning parts 420 can rotate synchronously with the target object A, thereby ensuring the stability of the target object A during rotation and reducing the risk of damage to the contact surface between the target object A and the positioning mechanism 000.

[0047] It should be noted that at least one of the two positioning assemblies 400 can move in the direction toward the target object A. That is, if both positioning assemblies 400 can move in the direction toward the target object A, then both positioning assemblies 400 are movably connected to the corresponding two second brackets 300. Alternatively, if the position of one positioning assembly 400 is fixed and the other positioning assembly 400 can move in the direction toward the target object A, then one of the two positioning assemblies 400 is movably connected to the corresponding second bracket 300. In both cases, both positioning assemblies 400 can position the target object A.

[0048] In summary, an embodiment of the present application provides a support mechanism, wherein, after the target object is located on the support assembly, two positioning assemblies can contact and position the two ends of the target object in a first direction. A positioning portion and a support shaft are provided in the positioning assembly, and the positioning portion is sleeved on the end of the support shaft and is rotatably connected to the support shaft. Therefore, during the rotation of the target object, the positioning portions in the two positioning assemblies can be driven by the rotating target object, so that the two positioning assemblies and the target object are relatively still, thereby reducing the risk of damage to the contact surface between the target object and the positioning mechanism, and avoiding the situation where the mechanical limiting method is too tight on the target object, resulting in the target object being unable to rotate.

[0049] The structure of the positioning component is described below:

[0050] Please refer to Figure 3 , Figure 3 The exploded schematic diagram of a positioning assembly provided in an embodiment of the present application. The positioning assembly 400 further includes: a rotating bearing 430 , which is mounted on the end of the support shaft 410 , and the positioning portion 420 is sleeved outside the rotating bearing 430 .

[0051] The rotating bearing 430 can reduce the friction and resistance of the positioning part 420 during the rotation process, making the rotation movement of the positioning part 420 smoother, thereby ensuring the rotation accuracy and stability of the positioning part 420. The rotating bearing 430 can also effectively prevent the support shaft 410 from being damaged due to bearing a large load, so that the support shaft 410 is kept in a correct position, thereby extending the service life of the positioning mechanism 000. Exemplarily, the rotating bearing 430 can be a one-way rotating bearing, and the direction in which the rotating bearing 430 can rotate is consistent with the rotation direction of the target object A, so that the rotating bearing 430 can be prevented from hindering the rotation of the target object A. However, the present application is not limited to this, and the rotating bearing 430 can also be a two-way rotating bearing.

[0052] The connection method between the positioning portion 420 and the rotating bearing 430 can be selected according to the actual working conditions. For example, the connection method between the positioning portion 420 and the rotating bearing 430 can include: at least one of bolt connection, interference fit, riveting and adhesive bonding.

[0053] Optionally, refer to Figure 3 and Figure 4 , Figure 4 yes Figure 3 A schematic diagram of the structure of a positioning portion in a positioning assembly is provided. The side of the positioning portion 420 that faces away from the support shaft 410 is a support plane 421. In the process of rotationally positioning the target object A, the support plane 421 is the contact surface with the target object A. The contact surface is the support plane 421, which can prevent the positioning assembly 400 from affecting the rotation of the target object A. The shape of the support plane 421 of the positioning portion 420 shown in the above embodiment is circular, so that it can be adapted to the cylindrical target object A. In addition, the shape of the support plane 421 can also include but is not limited to square, rhombus, triangle, polygon, etc.

[0054] The positioning portion 420 has a mounting groove 422 on one side away from the supporting plane 421, and at least a portion of the rotating bearing 430 is located in the mounting groove 422. The shape and structure of the mounting groove 422 match the rotating bearing 430, so as to facilitate the positioning portion 420 to be mounted on the rotating bearing 430. Exemplarily, if the rotating bearing 430 has a boss, the mounting groove 422 can be a stepped groove matching the boss structure.

[0055] To this end, based on the structure of the positioning assembly 400, the positioning portion 420 can be made to rotate synchronously with the target object A. On the one hand, compared with the instantaneous positioning in the related art, the positioning mechanism 000 provided in the present application can ensure the consistency and continuity of positioning, and improve the accuracy of rotational positioning, thereby improving the product yield of the process using the positioning mechanism 000. On the other hand, compared with the hard limit positioning in the related art, the positioning mechanism 000 provided in the present application can not only reduce the risk of damaging the contact surface of the target object A, so as to improve the product yield. It can also reduce the risk of hindering the rotation of the target object A, so as to reduce the alarm frequency and the number of failures, thereby improving the production capacity of the equipment using the positioning mechanism 000.

[0056] The structure of the support assembly is described below:

[0057] Optionally, refer to Figure 1 and Figure 2 The support assembly 200 includes: a plurality of rolling support parts 210. The rolling support part 210 may include: a rotating shaft and a roller sleeve, the rotating shaft is connected to the first bracket 110, and the roller sleeve is sleeved on the end outside the rotating shaft, so that when the target object A rotates, the rolling support part 210 can not only be used to support the target object A, but the roller sleeve can also rotate synchronously with the target object A, so as to avoid the rolling support part 210 hindering the rotation of the target object A, thereby reducing the alarm frequency and the number of faults, and improving the production capacity of the equipment using the positioning mechanism 000.

[0058] The plurality of rolling support parts 210 can be divided into two groups of rolling support parts 210, and one group of rolling support parts 210 includes at least one rolling support part 210. The two groups of rolling support parts 210 are distributed in the second direction Y, and the target object A can be distributed between the two groups of rolling support parts 210 in the second direction Y. The second direction Y intersects with the first direction X. That is, the two groups of rolling support parts 210 can support the target object A on both sides thereof in the second direction Y, respectively. In the second direction Y, the distance between the two groups of rolling support parts 210 is smaller than the diameter of the target object A, so as to ensure stability when the target object A is rotationally positioned.

[0059] Optionally, the first bracket 100 includes: a first sub-bracket 110 and a second sub-bracket 120 which are spaced apart in the first direction X.

[0060] A group of rolling support parts 210 includes two rolling support parts 210 distributed in the first direction X. In the same group of rolling support parts 210, one rolling support part 210 is connected to the first sub-bracket 110, and the other rolling support part 210 is connected to the second sub-bracket 120. That is, the two rolling support parts 210 in a group of rolling support parts 210 are separately arranged, and the two rolling support parts 210 are respectively in contact with the two ends of the target object A in the first direction, so that the contact area with the target object A can be reduced on the basis of ensuring that the support assembly 200 has sufficient support for the target object A.

[0061] For example, when the positioning mechanism 000 is applied to the gluing process of a cylindrical battery or the coating process, two rolling support parts 210 in a group of rolling support parts 210 are separately arranged, which can reduce the scratching between the support component 200 and the colloid or coating, thereby improving the product yield.

[0062] In an exemplary embodiment, please refer to Figure 5 , Figure 5 2 is a schematic diagram of a three-dimensional structure of another positioning mechanism provided in an embodiment of the present application. The two positioning components 400 are respectively: a first positioning component 400a and a second positioning component 400b.

[0063] The second bracket 300 corresponding to the first positioning assembly 400a includes: a bracket body 310 and a mounting plate 320, wherein the mounting plate 320 is connected to the bracket body 310 and can move relative to the bracket body 310 along the first direction X, and the support shaft 410 in the first positioning assembly 400a is fixed on the mounting plate 320. Here, the mounting plate 320 can make the first positioning assembly 400a float relative to the bracket body 310, so that during the rotation of the target object A, there can be a certain floating gap between the positioning portion 420 in the first positioning assembly 400a and the target object A, thereby preventing the positioning assembly 400 from limiting the target object A too tightly in the first direction X, thereby avoiding the risk of the target object A being unable to rotate.

[0064] The support shaft 410 in the second positioning assembly 400b is fixed on the corresponding second bracket 300. In this way, the positioning portion 420 in the second positioning assembly 400b will not float in the first direction X, and the end surface of the positioning portion 420 in the second positioning assembly 400b facing the target object A can be used as a fixed reference surface, thereby ensuring the stability of the target object A during the rotation process, and the position floating of the target object A in the first direction X will not be too large, thereby improving the accuracy of positioning the target object A.

[0065] In the present application, a variety of implementations can be used to fix the support shaft 410 in the first positioning assembly 400a and the second positioning assembly 400b on the second bracket 300. Exemplarily, the second bracket 300 has a mounting hole, and the end of the support shaft 410 away from the mounting portion 420 can pass through the mounting hole and be connected to the stopper to prevent the support shaft 410 from being separated from the second bracket 300. Here, in the second bracket 300 corresponding to the first positioning assembly 400a, the mounting holes are distributed on the mounting plate 320.

[0066] Optionally, the second bracket 300 corresponding to the first positioning assembly 400a further includes: at least one buffer elastic portion 330, and the two ends of the at least one buffer elastic portion 330 in the first direction X are elastically connected to the bracket body 310 and the mounting plate 320 respectively. Here, the buffer elastic portion 330 can be an elastic component, and the direction in which the buffer elastic portion 330 undergoes elastic deformation can be parallel to the first direction X. In this way, when the first positioning assembly 400a abuts against the target object A, the buffer elastic portion 330 still has a margin for elastic deformation to avoid excessively tight limits on the two ends of the target object A, thereby ensuring that the target object A can rotate.

[0067] Optionally, refer to Figure 6 and Figure 7 , Figure 6 is a schematic diagram of a three-dimensional structure of another positioning mechanism provided in an embodiment of the present application, Figure 7 yes Figure 6 A partial enlarged view of the positioning mechanism at Q2 is provided. The side of the bracket body 310 facing the mounting plate 320 has a fixing plate 311, and the fixing plate 311 has a mounting through hole K1. The fixing plate 311 is used to fix the buffer elastic part 330. Exemplarily, the plane where the fixing plate 311 is located can be perpendicular to the first direction X, so as to facilitate the setting of the mounting through hole K1.

[0068] The buffer elastic part 330 includes: a floating rod 331, and an elastic element 332 sleeved on the floating rod 331. One end of the floating rod 331 is fixedly connected to the mounting plate 320, and the other end of the floating rod 331 has a stopper 333. The fixing plate 311 is sleeved on the floating rod 331 through the mounting through hole K1, and the stopper 333 is located on the side of the fixing plate 311 away from the mounting plate 320. The elastic element 332 is located between the mounting plate 320 and the fixing plate 311, and the two ends of the elastic element 332 are respectively in contact with the mounting plate 320 and the fixing plate 311.

[0069] Among them, the elastic element 332 can enable the mounting plate 320 to move relative to the bracket body 310 along the first direction X, so that the first limiting assembly 400a and the second limiting assembly 400b can cooperate to achieve floating limiting. The elastic element 332 can be in a compressed state, and the elastic element 332 can apply elastic force to the mounting plate 320 to ensure that the positioning portion 420 in the first positioning assembly 400a abuts against one end of the target object A. In addition, the elastic element 332 also has a certain compression margin to deform to achieve floating, so as to ensure that the target assembly A can rotate. Exemplarily, the elastic element 332 can be a spring.

[0070] The floating rod 331 is used to support the elastic element 332 and limit the direction of elastic deformation of the elastic element 332, thereby improving the stability of the mounting plate 320 when floating relative to the second bracket 300. Exemplarily, the extension direction of the floating rod 331 can be parallel to the first direction X.

[0071] The stopper 331 can limit the end of the floating rod 331 close to the fixing plate 311 to prevent the floating rod 331 from being separated from the fixing plate 311, thereby improving the structural stability of the buffer elastic part 330. The stopper 331 can also adjust the length of the portion of the floating rod 331 distributed between the fixing plate 311 and the mounting plate 320, thereby adjusting the compression amount of the elastic element 332.

[0072] In the second bracket 300 corresponding to the first positioning assembly 400a, another buffer elastic part 330 may be provided between the bracket body 310 and the mounting plate 320. Exemplarily, the buffer elastic part 330 provided in the embodiment of the present application may include: at least one of a spring, a buffer cylinder and a rubber pad.

[0073] The buffer cylinder can convert the energy of compressed air into the reciprocating linear motion of the piston. For example, the motion direction of the piston in the buffer cylinder can be parallel to the first direction X. When the first positioning component 400a is too tight on the target object A, the buffer cylinder can make the first positioning component 400a float in the first direction X, thereby ensuring that the target component A can rotate. The rubber pad has a certain elasticity, and can avoid the problem of the first positioning component 400a being too tight on the target object A by elastic deformation, thereby ensuring that the target component A can rotate.

[0074] Optionally, the positioning mechanism 000 further includes: a first driving assembly 500, the first driving assembly 500 is fixed on the bracket body 310, and the first driving assembly 500 is connected to the first positioning assembly 400a.

[0075] The first driving assembly 500 is configured to: after the target object A is located on the supporting assembly 200, drive the first positioning assembly 400a to move in a direction toward the target object A until the side of the target object A away from the first positioning assembly 400a contacts the positioning portion 420 in the second positioning assembly 400b.

[0076] Since the end surface of the positioning portion 420 in the second positioning component 400b facing the target object A can be used as a fixed reference surface, the position of the second positioning component 400b can remain unchanged, and the positioning of the target object A can be achieved only by driving the first positioning component 400a to move through the first driving component 500.

[0077] The first driving assembly 500 may adopt a cam groove assembly, which may include: a cam and a follower, wherein the cam avoids a groove with a curved track, one end of the follower moves along the curved track, and the other end is connected to the first positioning assembly 400a, which can drive the first positioning assembly 400a to move in the direction toward the target object A, thereby ensuring that the two positioning assemblies 400 can abut against the target object A to achieve the positioning function. It should be noted that Figure 6 The specific structure of the first driving assembly 500 is not shown, but this embodiment of the present application is not limited to this.

[0078] The first drive assembly 500 may also include other transmission structures. For example, the first drive assembly 500 may also include a screw nut, which converts rotational motion into linear motion through the meshing of the screw and the nut. When the screw is rotated, the nut will move along the axial direction of the screw to achieve linear motion. Therefore, the first positioning assembly 400a can also be driven to move in the direction toward the target object A through the screw nut.

[0079] In another exemplary embodiment, a corresponding first driving assembly 500 may also be provided for the second positioning assembly 400b so that the second positioning assembly 400b can move along the first direction X, thereby adjusting the position of the second positioning assembly 400b to adapt to the actual usage scenarios of various devices, thereby increasing the applicability and flexibility of the positioning mechanism 000.

[0080] Optionally, the positioning mechanism 000 further includes: a second driving assembly 600 , the second driving assembly 600 is fixed on the first bracket 100 , and the second driving assembly 600 is connected to the supporting assembly 200 .

[0081] The second driving assembly 600 is configured to: after the target object A is located on the supporting assembly 200 , drive the supporting assembly 200 to move in a direction close to the two positioning assemblies 400 until the target object A is located between the two positioning assemblies 400 in the first direction X.

[0082] The second driving assembly 600 can use a slide cylinder, which controls the movement of the piston in the cylinder through compressed air provided by the air source, thereby pushing the slide. The slide is connected to the support assembly 200, which can drive the support assembly 200 to move in the height direction. It should be noted that Figure 6 The specific structure of the second drive assembly 600 is not shown, but the embodiment of the present application does not limit this. The second drive assembly 600 may also include other transmission structures. For example, the second drive assembly 600 may also include a lead screw nut, which will not be described in detail here.

[0083] In the present application, the positioning mechanism 000 can be used in various devices that require rotational positioning of the target object A. By setting a second drive component 600 to drive the support component 200 to move in the height direction, it can adapt to the actual usage scenarios of various devices, thereby increasing the applicability and flexibility of the positioning mechanism 000.

[0084] Exemplarily, the device using the positioning mechanism 000 may include: a clamping assembly for clamping the target object A, and the clamping assembly and the positioning assembly 400 may not be at the same height. After the clamping assembly places the target object A on the support assembly 200, the second driving assembly 600 can lift the target object A placed on the support assembly 200 upward, so that the target object A is located between the two positioning assemblies 400 in the first direction X, and the two end faces of the target object A in the first direction X are respectively opposite to the two positioning assemblies 400, so as to ensure that the two positioning assemblies 400 can abut against the target object A to achieve the positioning function.

[0085] Optionally, the device using the positioning mechanism 000 may further include: a third driving component for driving the target object A to rotate. The following is an exemplary embodiment to illustrate the action steps of the positioning mechanism 000:

[0086] The target object A is placed on the support assembly 200 by the clamping assembly, and the support assembly 200 is driven to move in the direction close to the two positioning assemblies 400 until the target object A is located between the two positioning assemblies 400 in the first direction X. The first driving assembly 500 drives the first positioning assembly 400a to move in the direction toward the target object A until the side of the target object A away from the first positioning assembly 400a contacts the positioning portion 420 in the second positioning assembly 400b. According to the size of the target object A, the compression amount of the elastic element 332 is adjusted by the limiter 331 to ensure that the first positioning assembly 400a limits the position of the target object A. The target object A starts to rotate under the drive of the third driving assembly, and drives the positioning portions 420 in the two positioning assemblies 400 to rotate synchronously, so that the positioning mechanism 000 can realize real-time positioning of the target object A during the rotation process.

[0087] In summary, an embodiment of the present application provides a support mechanism, wherein, after the target object is located on the support assembly, two positioning assemblies can contact and position the two ends of the target object in a first direction. A positioning portion and a support shaft are provided in the positioning assembly, and the positioning portion is sleeved on the end of the support shaft and is rotatably connected to the support shaft. Therefore, during the rotation of the target object, the positioning portions in the two positioning assemblies can be driven by the rotating target object, so that the two positioning assemblies and the target object are relatively still, thereby reducing the risk of damage to the contact surface between the target object and the positioning mechanism, and avoiding the situation where the mechanical limiting method is too tight on the target object, resulting in the target object being unable to rotate.

[0088] In this application, the term "at least one of A and B" is only a description of the association relationship of the associated objects, indicating that there can be three kinds of relationships. For example, at least one of A and B can be represented by: A exists alone, A and B exist at the same time, and B exists alone. Similarly, "at least one of A, B, and C" means that there can be seven kinds of relationships, which can be represented by: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, C and B exist at the same time, and A, B, and C exist at the same time. Similarly, "at least one of A, B, C, and D" means that there can be fifteen kinds of relationships, which can be represented by: A exists alone, B exists alone, C exists alone, D exists alone, A and B exist at the same time, A and C exist at the same time, A and D exist at the same time, C and B exist at the same time, D and B exist at the same time, C and D exist at the same time, A, B, and C exist at the same time, A, B, and D exist at the same time, A, C, and D exist at the same time, B, C, and D exist at the same time, and A, B, C, and D exist at the same time.

[0089] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0090] In the present application, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0091] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning mechanism, characterized in that: The positioning mechanism comprises: a first bracket, a supporting assembly, two second brackets and two positioning assemblies; The support assembly is located on the first bracket, and the support assembly is used to support a cylindrical target object; The two second brackets are respectively located on both sides of the first bracket in a first direction, and the first direction is parallel to the axial direction of the target object; The two positioning assemblies are respectively located on the two second brackets, and each of the positioning assemblies comprises: a support shaft and a positioning portion, the support shaft is connected to the second bracket, and the positioning portion is sleeved on the end of the support shaft and is rotatably connected to the support shaft; Among them, at least one of the positioning components is configured to: after the target object is located on the supporting component, move in a direction toward the target object, so that the two positioning parts of the two positioning components respectively abut against the two ends of the target object and rotate synchronously with the target object.

2. The positioning mechanism according to claim 1, characterized in that: The two positioning components are respectively: a first positioning component and a second positioning component; The second bracket corresponding to the first positioning assembly comprises: a bracket body and a mounting plate, the mounting plate is connected to the bracket body, and the mounting plate can move relative to the bracket body along the first direction, and the support shaft in the first positioning assembly is fixed on the mounting plate; The supporting shaft in the second positioning assembly is fixed on the corresponding second bracket.

3. The positioning mechanism according to claim 2, characterized in that: The second bracket corresponding to the first positioning assembly further includes: at least one buffer elastic portion, and two ends of the at least one buffer elastic portion in the first direction are elastically connected to the bracket body and the mounting plate respectively.

4. The positioning mechanism according to claim 3, characterized in that: The bracket body has a fixing plate on one side facing the mounting plate, and the fixing plate has a mounting through hole; the buffer elastic part includes: a floating rod, and an elastic element sleeved on the floating rod; One end of the floating rod is fixedly connected to the mounting plate, and the other end of the floating rod has a limit piece. The fixing plate is sleeved on the floating rod through a mounting through hole, and the limit piece is located on the side of the fixing plate away from the mounting plate; the elastic element is located between the mounting plate and the fixing plate, and the two ends of the elastic element are respectively abutted against the mounting plate and the fixing plate.

5. The positioning mechanism according to any one of claims 2 to 4, characterized in that: The positioning mechanism further includes: a first driving assembly, the first driving assembly is fixed to the bracket body, and the first driving assembly is connected to the first positioning assembly; The first driving assembly is configured to: after the target object is located on the supporting assembly, drive the first positioning assembly to move in a direction toward the target object until a side of the target object facing away from the first positioning assembly contacts a positioning portion in the second positioning assembly.

6. The positioning mechanism according to any one of claims 1 to 4, characterized in that: The positioning assembly further comprises: a rotating bearing, the rotating bearing is mounted on the end of the supporting shaft, and the positioning portion is sleeved outside the rotating bearing.

7. The positioning mechanism according to claim 6, characterized in that: A side of the positioning portion facing away from the supporting shaft is a supporting plane; a side of the positioning portion facing away from the supporting plane is provided with a mounting groove, and at least a part of the rotary bearing is located in the mounting groove.

8. The positioning mechanism according to any one of claims 1 to 4 and 7, characterized in that: The support assembly comprises: a plurality of rolling support parts, the plurality of rolling support parts can be divided into two groups of rolling support parts, and one group of rolling support parts includes at least one rolling support part; Wherein, the two groups of rolling support parts are distributed in a second direction, and the target object can be distributed between the two groups of rolling support parts in the second direction; and the second direction intersects with the first direction.

9. The positioning mechanism according to claim 8, characterized in that: The first bracket comprises: a first sub-bracket and a second sub-bracket spaced apart in the first direction; A group of the rolling support parts includes two rolling support parts distributed in the first direction; and in the same group of the rolling support parts, one rolling support part is connected to the first sub-bracket, and the other rolling support part is connected to the second sub-bracket.

10. The positioning mechanism according to any one of claims 1-4, 7 and 9, characterized in that: The positioning mechanism further includes: a second driving assembly, the second driving assembly is fixed to the first bracket, and the second driving assembly is connected to the supporting assembly; The second driving assembly is configured to: after the target object is located on the supporting assembly, drive the supporting assembly to move in a direction approaching the two positioning assemblies until the target object is located between the two positioning assemblies in the first direction.

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