Clamp and roller line

Abstract

The utility model provides a clamp and a roller line. The clamp comprises a clamping jaw and a limiting device. The clamping jaw is connected to the roller line and moves directionally. The clamping jaw comprises a starting position and a stopping position in the moving process. The limiting device comprises a base and a limiting structure. The base is used for fixing the limiting device. The limiting structure is connected with the base and located between the starting position and the ending position. The limiting structure is provided with a guide face and a limiting face. And the clamping jaw moves along the guide surface. When the clamping jaw moves to the ending position, the limiting face is located on the side, close to the starting position, of the clamping jaw, the limiting face abuts against one side of the clamping jaw, the clamping jaw is prevented from moving towards the starting position, in other words, the clamp is prevented from rebounding after reaching the final position, and therefore the working efficiency of the roller line is improved. The base is connected with the limiting structure so as to ensure the accuracy of the position of the limiting structure, and therefore it is ensured that the limiting structure can accurately limit the clamping jaw when the clamping jaw moves to the stop position.

Description

Technical Field

[0001] This application relates to the field of clamping technology, and more particularly to a clamping device and a roller conveyor. Background Technology

[0002] The battery production line includes an electrolyte filling process. The electrolyte filling process for lithium batteries can be completed using a roller conveyor. Specifically, the clamps move from a starting position to a final position along the roller conveyor, where the cells are loaded. The roller conveyor is also equipped with a lifting cylinder located at the final position. When the clamps reach this final position, the lifting cylinder lifts and positions the clamps, awaiting the loading robot to place the battery cells into the clamps for the electrolyte filling process.

[0003] In related technologies, when the fixture moves to its final position, it may spring back to its starting position, causing the lifting cylinder to fail to align with the fixture, resulting in abnormal fixture lifting and affecting the working efficiency of the roller conveyor. Utility Model Content

[0004] This application provides a clamp and a roller conveyor to prevent the clamp from springing back after reaching the final position, thereby improving the working efficiency of the roller conveyor.

[0005] In a first aspect, this application provides a clamp for use on a roller conveyor. The clamp includes a gripper and a limiting device. The gripper is connected to the roller conveyor and moves in a directional direction in a first direction. During movement, the gripper includes a starting position and an ending position. The first direction is the direction from the starting position to the ending position. The limiting device includes a base and a limiting structure. The base is used to fix the limiting device. The limiting structure is connected to the base and is located between the starting position and the ending position. When the gripper moves to the ending position, the limiting structure abuts against the side of the gripper closest to the starting position, preventing the gripper from moving in the direction of the starting position.

[0006] As provided in the first aspect, the grippers are connected to the roller conveyor and move in a first direction, allowing them to grip and transfer workpieces according to the established procedures of the roller conveyor. The grippers have a starting position and an ending position during their movement. When the grippers reach the ending position, a limiting structure within the limiting device abuts against the side of the grippers closest to the starting position, preventing the grippers from moving towards the starting position, i.e., preventing the grippers from springing back after reaching the final position, thereby improving the working efficiency of the roller conveyor. The base within the limiting device is connected to the limiting structure to fix the limiting device to the roller conveyor, ensuring the accuracy of the limiting structure's position, and thus ensuring that the limiting structure can precisely limit the grippers when they reach the ending position.

[0007] In one possible design, the limiting structure has a guide surface and a limiting surface. A first angle exists between the guide surface and a first direction. A spring is connected to the bottom of the limiting structure. When the gripper moves along the first direction, the gripper abuts against the guide surface and presses down on the limiting structure, compressing the spring to store energy. When the gripper moves to the termination position, the gripper leaves the guide surface, the spring releases energy, causing the limiting structure to reset and the limiting surface to abut against the side of the gripper closest to the starting position, preventing the gripper from moving towards the starting position.

[0008] Based on the description of the above embodiments, the gripper moves towards the termination position while abutting against the guide surface until it leaves the guide surface, indicating that the gripper is at the termination position. The first angle between the guide surface and the first direction, and the spring provided at the bottom of the limiting structure, ensure that the gripper abuts against the limiting surface after leaving the guide surface, thereby preventing the gripper from moving towards the starting position.

[0009] In one possible design, the angle of the first included angle can be greater than or equal to 15°. Furthermore, the angle of the first included angle can be less than or equal to 45°.

[0010] Based on the description of the above embodiments, when the angle of the first included angle is greater than or equal to 15° and the angle of the first included angle is less than or equal to 45°, the limiting effect of the limiting structure is guaranteed while the production cost is low.

[0011] In one possible design, the base includes two opposing side plates and a bottom plate. The bottom plate connects the two side plates, forming a receiving groove. A limiting structure is disposed within the receiving groove.

[0012] Based on the description of the above embodiments, when the base is a receiving groove composed of a base plate and two side plates, the limiting structure is set in the receiving groove, which reduces the volume of the limiting structure and the base as a whole, thereby reducing the production cost of the limiting device.

[0013] In one possible design, the limiting device also includes a connector. The connector allows the limiting structure to be rotatably connected to the base.

[0014] Based on the description of the above embodiments, the limiting structure is rotatably connected to the base through a connector, so that the limiting structure achieves relative position fixation through the limiting connector, and achieves downward pressure through rotation, thereby ensuring the limiting effect while achieving precise limiting.

[0015] In one possible design, the side plate has a first through hole along a second direction. The limiting structure has a second through hole along the second direction. The connector is fitted into both the first and second through holes, allowing the limiting structure to be rotatably connected to the base. The side plate has a third through hole along the first direction. The third through hole communicates with the first through hole. A locating pin is fitted into the third through hole, abutting against the connector to prevent the connector from dislodging along the second direction. The second direction refers to the direction in which the two side plates are positioned opposite each other.

[0016] Based on the description of the above embodiments, the connector is simultaneously fitted into the first through hole and the second through hole, allowing the limiting structure to be rotatably connected to the base. The positioning pin presses against the connector through the third through hole, preventing the connector from coming out of the second or first through hole, thereby preventing connector failure and further ensuring the limiting effect of the limiting structure.

[0017] In one possible design, a first countersunk hole is formed in the base plate. A second countersunk hole is formed in the bottom of the limiting structure. One end of the spring is fitted into the first countersunk hole. The other end of the spring is fitted into the second countersunk hole.

[0018] Based on the description of the above embodiments, one end of the spring is fitted into the first countersunk hole opened on the base plate, and the other end of the spring is fitted into the second countersunk hole opened at the bottom of the limiting structure, thereby realizing the limiting of the spring and ensuring that the limiting structure can smoothly limit the gripper.

[0019] In one possible design, the guide surface has a chamfer on the side closest to the starting position.

[0020] Based on the description of the above embodiments, the guide surface has a chamfer on the side near the starting position to allow the gripper to smoothly contact the guide wire surface, thereby enabling the gripper to smoothly reach the ending position to achieve the limit.

[0021] In one possible design, there is a second included angle between the bottom of the limiting structure and the base plate.

[0022] Based on the description of the above embodiments, there is a second included angle between the bottom of the limiting structure and the base plate, which can increase the contact area between the limiting surface and the gripper, thereby improving the limiting effect.

[0023] Secondly, this application provides a roller conveyor line including the clamps described in any of the above embodiments. Multiple clamps can move sequentially on the roller conveyor line.

[0024] The advantages of the roller line provided in the second aspect above can be found in the first aspect and the advantages of the various possible embodiments of the first aspect, and will not be repeated here. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a limiting structure in an embodiment of this application.

[0027] Figure 2 for Figure 1 The main view.

[0028] Figure 3 This is a schematic diagram of the structure of a base in an embodiment of this application.

[0029] Figure 4 for Figure 3 Top view.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Limiting structure; 11-Guide surface; 12-Limiting surface; 13-Second through hole; 14-Second countersunk hole; 15-Chamfer;

[0032] 2-Base; 21-Side plate; 22-Bottom plate; 23-Mounting hole; 24-First through hole; 25-Third through hole; 26-First countersunk hole;

[0033] X - First direction. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0036] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples.

[0037] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0039] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] Furthermore, the descriptions of directions such as the X direction, Y direction, and Z direction used to explain the operation and construction of the components in this embodiment are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change to correspond to the changes.

[0041] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0042] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0043] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. In circuit structures, "connection" or "linkage" can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected; it can also refer to the internal connection of two components. Signal connection can refer not only to signal connection through a circuit but also to signal connection through a media, such as radio waves. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] The battery production line includes an electrolyte filling process. The electrolyte filling process for lithium batteries can be completed using a roller conveyor. In this process, the fixture moves from the starting position to the final position via the roller conveyor, where the battery is loaded.

[0045] Specifically, the roller line is also equipped with a lifting cylinder. The lifting cylinder is located at the aforementioned final position. When the fixture reaches the aforementioned final position, the lifting cylinder drives the fixture to lift and position itself, waiting for the loading robot to place the battery cell into the fixture so as to carry out the aforementioned liquid injection process.

[0046] In related technologies, when the fixture moves to its final position, it may spring back to its starting position, causing the lifting cylinder to fail to align with the fixture, resulting in abnormal lifting of the fixture and affecting the working efficiency of the roller conveyor.

[0047] Based on this, this application provides a clamp that, by setting a limiting device in the clamp, prevents the clamp from springing back after reaching the final position, thereby improving the working efficiency of the roller conveyor. The following is in conjunction with... Figure 1-4 Please provide a detailed explanation.

[0048] In a first aspect, this application provides a clamp for use on a roller conveyor. The clamp includes a gripper (not shown in the figure) and a limiting device. The gripper is connected to the roller conveyor and moves in a first direction X. The gripper has a starting position and an ending position during its movement. The first direction X is the direction from the starting position to the ending position. The limiting device includes a base 2 and a limiting structure 1. The base 2 is used to fix the limiting device. The limiting structure 1 is connected to the base 2 and is located between the starting position and the ending position. When the gripper moves to the ending position, the limiting structure 1 abuts against the side of the gripper near the starting position to prevent the gripper from moving in the direction of the starting position.

[0049] A gripper is an end effector used to grasp and move various objects. For example, it moves and grips battery cells on a roller conveyor to facilitate the electrolyte filling process. Grippers can include, but are not limited to, pneumatic grippers, electric grippers, and hydraulic grippers.

[0050] Specifically, the grippers are connected to the roller conveyor and move in a directional direction X, allowing them to grip and transfer items to be processed according to the procedures set by the roller conveyor. For example, the grippers can grip and transfer battery cells that require liquid injection.

[0051] Furthermore, the movement of the gripper on the roller conveyor follows a fixed path. The starting point of this fixed path is the starting position of the gripper, and the ending point is the ending position. Therefore, the first direction X can be the direction from the starting position to the ending position. It should be noted that the fixed path, starting position, and ending position mentioned above are all design requirements to ensure smooth connection between various processes on the roller conveyor, thereby improving production efficiency. Therefore, the gripper requires high-precision position definition.

[0052] In related technologies, when the gripper moves to the end position, it may spring back to the starting position. That is, after the gripper stops moving, it will deviate from the final position, which reduces the accuracy of the gripper position setting, thereby affecting the connection of the next process in the roller conveyor and thus affecting the production efficiency of the roller conveyor.

[0053] For example, the roller conveyor may also be equipped with a lifting cylinder. The lifting cylinder is located at the aforementioned final position. When the fixture reaches the aforementioned final position, the lifting cylinder drives the fixture to lift and position itself, waiting for the loading robot to place the battery cell into the fixture for the battery cell electrolyte injection process. If the fixture deviates from the final position, the lifting cylinder will not be able to align with the fixture, resulting in abnormal fixture lifting and affecting the working efficiency of the roller conveyor.

[0054] Therefore, a limiting device is set between the starting position and the ending position, such as... Figure 1 and Figure 2As shown, the limiting device may include a limiting structure 1. When the gripper moves to the end position, the limiting structure 1 abuts against the side of the gripper near the starting position to prevent the gripper from moving in the direction of the starting position.

[0055] Furthermore, the limiting device may also include a base 2, with the limiting structure 1 connected to the base 2.

[0056] The base 2 is used to fix the limiting device on the roller line to ensure the accuracy of the position of the limiting structure 1.

[0057] Specifically, the limiting device is fixed by the base 2, ensuring that when the limiting structure 1 abuts against the side of the gripper near the starting position, the gripper moves to the ending position, so that the limiting structure 1 can limit the gripper when the gripper moves to the ending position.

[0058] Specifically, such as Figure 3 and Figure 4 As shown, the base 2 can be provided with multiple mounting holes 23, and bolts or other connecting parts can be fitted into the mounting holes 23 to fix the limiting device to the roller line.

[0059] In summary, the gripper is connected to the roller conveyor and moves in a first direction X, allowing it to grip and transfer workpieces according to the established procedures of the roller conveyor. The gripper has a starting position and an ending position during its movement. When the gripper reaches the ending position, the limiting structure 1 in the limiting device abuts against the side of the gripper closest to the starting position, preventing the gripper from moving towards the starting position, i.e., preventing the gripper from springing back after reaching the final position, thereby improving the working efficiency of the roller conveyor. The base 2 in the limiting device is connected to the limiting structure 1 and is used to fix the limiting device to the roller conveyor to ensure the accuracy of the position of the limiting structure 1, thus ensuring that the limiting structure 1 can accurately limit the gripper when it reaches the ending position.

[0060] In some embodiments, the limiting structure 1 is provided with a guide surface 11 and a limiting surface 12. A first angle exists between the guide surface 11 and the first direction X. A spring is connected to the bottom of the limiting structure 1. When the gripper moves along the first direction X, the gripper abuts against the guide surface 11 and presses down on the limiting structure 1, causing the spring to compress and store energy. When the gripper moves to the termination position, the gripper leaves the guide surface 11, the spring releases energy, causing the limiting structure 1 to reset, and the limiting surface 12 abuts against the side of the gripper near the starting position, preventing the gripper from moving towards the starting position.

[0061] by Figure 2 Taking the placement direction of the limiting device as an example, the first angle between the guide surface 11 and the first direction X causes the guide surface 11 to tilt upward. The limiting surface 12 is connected to the highest point of the guide surface 11 and extends vertically downward from the highest point.

[0062] Therefore, when the gripper moves along the first direction X, it can press down the limiting structure 1 when it comes into contact with the guide surface 11, and compress the spring connected to the bottom of the limiting structure 1 to store energy.

[0063] When the gripper moves to the end position, the gripper leaves the guide surface 11, and the spring releases energy to reset the limiting structure 1. That is, the guide surface 11 rises, preventing the gripper from returning to the guide surface 11 from its highest point.

[0064] Furthermore, when the gripper leaves the guide surface 11, the guide surface 11 rises, and the gripper relatively descends. Therefore, the gripper can be grounded with the limiting surface 12 that extends vertically downward along the highest point of the guide surface 11, so that the limiting surface 12 abuts against the side of the gripper near the starting position, preventing the gripper from moving in the direction of the starting position.

[0065] In summary, the gripper moves towards the termination position by abutting against the guide surface 11 until it leaves the guide surface 11, indicating that the gripper is at the termination position. The first angle between the guide surface 11 and the first direction X, along with the spring at the bottom of the limiting structure 1, allows the gripper to abut against the limiting surface 12 after leaving the guide surface 11, thereby preventing the gripper from moving towards the starting position.

[0066] Furthermore, in some embodiments, the angle of the first included angle may be greater than or equal to 15°. Also, the angle of the first included angle may be less than or equal to 45°.

[0067] by Figure 2 Taking the placement direction of the limiting device as an example, the larger the angle of the first included angle, the higher the height of the limiting surface 12, and the larger the contact area between the limiting surface 12 and the gripper, thus making the limiting effect better.

[0068] However, if the angle of the first included angle continues to increase and the height of the limiting surface 12 becomes too high, the volume of the limiting structure 1 will become too large, and the production cost of the limiting structure 1 will increase.

[0069] In summary, when the angle of the first included angle is greater than or equal to 15° and less than or equal to 45°, the limiting effect of the limiting structure 1 can be guaranteed while keeping production costs low.

[0070] Specifically, in some embodiments, the base 2 includes two opposing side plates 21 and a bottom plate 22. The bottom plate 22 is connected between the two side plates 21 to form a receiving groove. A limiting structure 1 is disposed within the receiving groove.

[0071] As can be seen from the above, the base plate 22 is used to connect the limiting structure 1 and to fix the position of the limiting structure 1 relatively.

[0072] Therefore, as Figure 3As shown, when the base 2 is a receiving groove consisting of a base plate 22 and two side plates 21, the limiting structure 1 is set in the receiving groove, which reduces the overall volume of the limiting structure 1 and the base 2, thereby reducing the production cost of the limiting device.

[0073] Furthermore, in some embodiments, the limiting device further includes a connector. The connector allows the limiting structure 1 to be rotatably connected to the base 2.

[0074] As can be seen from the above, the position of the limiting structure 1 needs to be relatively fixed to ensure the limiting accuracy. However, the limiting structure 1 needs to be pressed down with the gripper.

[0075] Therefore, a connector is provided between the base 2 and the limiting structure 1. The limiting structure 1 is rotatably connected to the base 2 through the connector, so that the limiting structure 1 achieves relative fixation of its position through the limiting component and achieves downward pressure through rotation.

[0076] For example, such as Figure 2 As shown, the limiting structure 1 may include a first end and a second end arranged opposite to each other. The first end is connected to the base 2 via a connector, and the bottom of the second end is connected to a spring, thus forming a hinge structure. This increases the travel of the first end, thereby increasing the contact area between the limiting surface 12 and the gripper, and thus improving the limiting effect.

[0077] According to the description of the above embodiment, the limiting structure 1 is rotatably connected to the base 2 through the connecting member, so that the limiting structure 1 achieves relative fixation of its position through the limiting member, and achieves downward pressure through rotation, thereby ensuring the limiting effect while achieving precise limiting.

[0078] Furthermore, with Figure 3 The base 2 shown and Figure 1 Taking the limiting structure 1 shown as an example, the specific connection method of the connector may include, but is not limited to:

[0079] In some embodiments, the side plate 21 has a first through hole 24 along the second direction. The limiting structure 1 has a second through hole 13 along the second direction. The connecting member is simultaneously fitted into the first through hole 24 and the second through hole 13, so that the limiting structure 1 is rotatably connected to the base 2. The side plate 21 has a third through hole 25 along the first direction X. The third through hole 25 communicates with the first through hole 24. A positioning pin is fitted into the third through hole 25, and the positioning pin abuts against the connecting member to prevent the connecting member from coming out along the second direction. The second direction is the direction in which the two side plates 21 are arranged opposite each other.

[0080] The connecting component can be a rotating shaft that is rotatably connected in the first through hole 24 and the second through hole 13, so that the limiting structure 1 can be rotatably connected to the base 2.

[0081] Furthermore, the rotating shaft will disengage from the first through hole 24 and the second through hole 13 along the second direction. Based on this, a third through hole 25 communicating with the second through hole 13 is formed on the side plate 21 along the first direction X. This allows the locating pin to abut against and press against the rotating shaft located in the second through hole 13 through the third through hole 25, thus pressing the rotating shaft into the second through hole 13 along the first direction X, thereby preventing it from falling out of the second through hole 13 or the first through hole 24 and preventing the connector from failing.

[0082] In summary, the connector is simultaneously fitted into the first through hole 24 and the second through hole 13, allowing the limiting structure 1 to be rotatably connected to the base 2. The positioning pin presses against the connector through the third through hole 25, preventing the connector from coming out of the second through hole 13 or the first through hole 24, thus preventing connector failure and further ensuring the limiting effect of the limiting structure 1.

[0083] Furthermore, in some embodiments, a first countersunk hole 26 is formed on the base plate 22. A second countersunk hole 14 is formed at the bottom of the limiting structure 1. One end of the spring is fitted into the first countersunk hole 26. The other end of the spring is fitted into the second countersunk hole 14.

[0084] like Figure 2 As shown, a first countersunk hole 26 is provided on the base plate 22 for placing one end of the spring. A second countersunk hole 14 is provided at the bottom of the limiting structure 1 for placing the other end of the spring. The two ends of the spring are respectively fitted into the two countersunk holes, so that the spring can only move in the compression direction. That is, the first countersunk hole 26 and the second countersunk hole 14 realize the limiting of the spring, thereby ensuring that the limiting structure 1 can smoothly limit the gripper.

[0085] According to the description of the above embodiment, one end of the spring is fitted into the first countersunk hole 26 opened on the base plate 22, and the other end of the spring is fitted into the second countersunk hole 14 opened at the bottom of the limiting structure 1, thereby realizing the limiting of the spring and ensuring that the limiting structure 1 can smoothly limit the gripper.

[0086] In some embodiments, the guide surface 11 has a chamfer 15 on the side near the starting position.

[0087] The clamp is wobbling on the roller conveyor. Figure 2 Taking the placement direction of the limiting device as an example, the clamp will sway up and down when it comes into contact with the guide surface 11.

[0088] Based on this, such as Figure 1 and Figure 2 As shown, a chamfer 15 is provided on the side of the guide surface 11 near the starting position, so that the gripper can smoothly contact the guide surface 11 even if it shakes up and down.

[0089] In summary, the guide surface 11 has a chamfer 15 on the side near the starting position to allow the gripper to smoothly contact the guide surface 11, thereby enabling the gripper to smoothly reach the ending position to achieve the limit.

[0090] In some embodiments, there is a second included angle between the bottom of the limiting structure 1 and the base plate 22.

[0091] Specifically, when there is a second included angle between the bottom of the limiting structure 1 and the base plate 22, the first end of the limiting structure 1 can be moved away from the base plate 22, thereby increasing the travel of the first end, increasing the contact area between the limiting surface 12 and the gripper, and thus improving the limiting effect.

[0092] According to the description of the above embodiments, there is a second included angle between the bottom of the limiting structure 1 and the base plate 22, which can increase the contact area between the limiting surface 12 and the gripper, thereby improving the limiting effect.

[0093] Secondly, this application provides a roller conveyor line including the clamps described in any of the above embodiments. Multiple clamps can move sequentially on the roller conveyor line.

[0094] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0095] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A clamp for use on a roller conveyor, characterized in that, include: Grippers and limiting devices; The gripper is connected to the roller line and moves in a directional direction; The gripper has a starting position and an ending position during its movement; The first direction is the direction from the starting position to the ending position; The limiting device includes a base and a limiting structure; The base is used to fix the limiting device; The limiting structure is connected to the base, and the limiting structure is located between the starting position and the ending position; When the gripper moves to the termination position, the limiting structure abuts against the side of the gripper near the starting position to prevent the gripper from moving towards the starting position.

2. The clamp according to claim 1, characterized in that, The limiting structure is provided with a guide surface and a limiting surface; There is a first angle between the guide surface and the first direction; A spring is connected to the bottom of the limiting structure; When the gripper moves along the first direction, the gripper abuts against the guide surface and presses down the limiting structure, causing the spring to compress and store energy. When the gripper moves to the termination position, the gripper leaves the guide surface, the spring releases energy to reset the limiting structure, and the limiting surface abuts against the side of the gripper near the starting position to prevent the gripper from moving towards the starting position.

3. The clamp according to claim 2, characterized in that, The angle of the first included angle is greater than or equal to 15°; Furthermore, the angle of the first included angle is less than or equal to 45°.

4. The clamp according to claim 2, characterized in that, The base includes two oppositely arranged side plates and a bottom plate; The base plate is connected between the two side plates to form a receiving groove; The limiting structure is disposed within the receiving groove.

5. The clamp according to claim 4, characterized in that, The limiting device also includes a connector; The connector allows the limiting structure to be rotatably connected to the base.

6. The clamp according to claim 5, characterized in that, The side plate is provided with a first through hole along the second direction; The limiting structure is provided with a second through hole along the second direction; The connector is simultaneously fitted into the first through hole and the second through hole, so that the limiting structure is rotatably connected to the base. The side plate is provided with a third through hole along the first direction; The third through hole is connected to the first through hole; A positioning pin is sleeved in the third through hole, and the positioning pin abuts against the connector to prevent the connector from coming out along the second direction; The second direction is the direction in which the two side plates are arranged opposite each other.

7. The clamp according to claim 4, characterized in that, A first countersunk hole is formed on the base plate; A second countersunk hole is provided at the bottom of the limiting structure; One end of the spring is fitted into the first countersunk hole; The other end of the spring is fitted inside the second countersunk hole.

8. The clamp according to claim 4, characterized in that, The guide surface has a chamfer on the side near the starting position.

9. The clamp according to any one of claims 4-8, characterized in that, There is a second included angle between the bottom of the limiting structure and the base plate.

10. A roller conveyor, characterized in that, Includes the clamps described in any one of claims 1-9; The multiple clamps move sequentially on the roller line.

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