Clamping tool

Abstract

The utility model relates to the field of workpiece transfer tools, in particular to a clamping tool which comprises a robot, a connecting piece and at least one clamping assembly, the clamping assembly is arranged on the connecting piece, the clamping assembly comprises a driving piece and two clamping pieces, and the two clamping pieces are configured to be capable of getting close to or getting away from each other under the driving of the driving piece; a clamping part is formed on each clamping piece, a buffer piece is formed on the inner side of each clamping part, and a clamping position is formed between the two clamping parts; the clamping assembly is connected with the robot through a connecting piece, two clamping pieces on the clamping assembly are opened and closed through a driving piece so that a workpiece can be clamped in a clamping position, a buffering piece is arranged on the inner side of the clamping part, and the buffering piece has one function of improving the clamping degree between the clamping part and the workpiece and improving the workpiece clamping stability; and the other function of the buffer piece is to protect the surface of the workpiece, so that the surface abrasion of the workpiece caused by the connection between the workpiece and the clamping part is avoided, and the quality of the workpiece is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece transfer tooling, and specifically relates to a clamping tooling. Background Art

[0002] During the production, processing or testing process, it is often necessary to load and unload the workpiece to ensure the continuous processing or testing.

[0003] In the traditional processing or testing process, manual loading and unloading requires a lot of manpower and time. During manual operation, the accuracy of workpiece placement is low, and there are processing or testing deviations. In addition, the safety is also low, and there are major safety hazards.

[0004] In addition to manual loading and unloading, there is also mechanized loading and unloading of workpieces by robots. During the loading and unloading process, some clamped workpieces are prone to surface wear or scratches, and when the clamped workpiece fails, there is also a risk of the workpiece falling. Summary of the invention

[0005] The utility model aims to provide a clamping tool to solve the problems existing in the prior art of low loading and unloading efficiency, easy wear of the workpiece surface by clamping the workpiece, workpiece falling when the clamping workpiece fails, poor safety, etc. during the processing or detection of the existing workpiece.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] The utility model proposes a clamping tool, which comprises:

[0008] robot;

[0009] A connecting piece connected to the operating end of the robot;

[0010] At least one clamping assembly is arranged on the connecting member, and the clamping assembly includes: a driving member and two clamping members, and the two clamping members are configured to be able to approach or move away from each other under the drive of the driving member; a clamping part is formed on each of the clamping members, a buffer part is formed on the inner side of the clamping part, and a clamping position is formed between the two clamping parts for clamping a workpiece.

[0011] In some embodiments of the present application, the clamping portion is a clamping recess formed on each of the clamping members, and the buffer member is a rubber strip disposed in the clamping recess.

[0012] In some embodiments of the present application, an installation groove is formed on the upper surface and / or the lower surface of the clamping member, and the buffer member is arranged in the installation groove.

[0013] In some embodiments of the present application, the upper surface and the lower surface of the clamping member are detachably connected to an upper cover plate and a lower cover plate, respectively, and the buffer member is fixed in the installation groove portion by the upper cover plate and / or the lower cover plate.

[0014] In some embodiments of the present application, the clamping portion is an arc-shaped clamping recess, and a circular clamping position is formed between two clamping portions.

[0015] In some embodiments of the present application, the driving member is a bidirectional cylinder, which includes a first telescopic end and a second telescopic end that telescope in opposite directions, and the two clamping members are respectively connected to the first telescopic end and the second telescopic end.

[0016] In some embodiments of the present application, a guide member is further provided on the connecting member, and a guide portion is formed on the guide member in the same direction as the moving direction of the clamping member. A guide rail portion is formed on each of the clamping members, and the guide rail portion is configured to be movably connected to the guide portion.

[0017] In some embodiments of the present application, an elastic member is further provided between the two clamping members, two ends of the elastic member are respectively fixed on the two clamping members, and the elastic member is configured to gradually extend as the two clamping members move away from each other.

[0018] In some embodiments of the present application, the connecting member includes an adapter portion and a connecting plate, the connecting plate is connected to the robot via the adapter portion, and a group of clamping components are respectively connected to both ends of the connecting plate.

[0019] In some embodiments of the present application, a detection member is installed on the connecting plate, and the detection member is used to detect whether there is a workpiece on the corresponding clamping assembly.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] The clamping workpiece involved in the present application has a clamping assembly connected to the robot through a connecting piece, and the two clamping members on the clamping assembly are opened and closed by a driving member to clamp the workpiece in the clamping position. A buffer member is provided on the inner side of the clamping portion. One function of the buffer member is to increase the clamping degree between the clamping portion and the workpiece and to improve the stability of the workpiece clamping. Another function of the buffer member is to protect the surface of the workpiece to avoid wear on the workpiece surface caused by the connection between the workpiece and the clamping portion, thereby ensuring the quality of the workpiece.

[0022] After the clamping component clamps the workpiece, it is transferred by the robot, which has accurate positioning, high degree of intelligence, reduced labor costs and higher safety.

[0023] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the clamping tooling proposed by the utility model;

[0026] Figure 2 yes Figure 1 A is an enlarged schematic diagram;

[0027] Figure 3 It is a schematic diagram of the connection of the supporting component on the connecting piece;

[0028] Figure 4 It is a schematic diagram of the structure of the support component;

[0029] Figure 5 It is a schematic diagram of the installation position of the buffer;

[0030] In the figure,

[0031] 100. Robots;

[0032] 200, connector;

[0033] 210, adapter; 220, connecting plate; 230, guide member; 231, guide portion;

[0034] 300, clamping assembly; 301, clamping position;

[0035] 310, driving member; 320, first clamping member; 330, second clamping member; 340, elastic member; 350, guide rail portion; 360, buffer member; 370, upper cover plate; 380, lower cover plate;

[0036] 400, workpiece;

[0037] 500. Inspection pieces. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0044] refer to Figure 1 , Figure 2 The present application proposes a clamping tool, which includes a robot 100, a connecting piece 200 and at least one clamping assembly 300.

[0045] The connecting member 200 is connected to the operating end of the robot 100 to achieve the connection between the clamping assembly 300 and the robot 100 .

[0046] The connecting member 200 includes at least one clamping assembly 300 . In some embodiments of the present application, the robot 100 is connected to only one clamping assembly 300 via the connecting member 200 . The single clamping assembly 300 independently realizes the loading and unloading operations of the workpiece 400 .

[0047] Taking the inspection of workpiece 400 as an example, in the actual working process, the robot 100 drives the clamping assembly 300 to move the workpiece 400 from the storage table to the inspection position for inspection. After the inspection is completed, the robot 100 drives the clamping assembly 300 to move the workpiece 400 from the inspection position to the unloading table.

[0048] refer to Figure 3 The clamping assembly 300 specifically includes a driving member 310 and two clamping members. The driving member 310 drives the two clamping members to open and close to clamp or release the workpiece 400.

[0049] The driving member 310 may specifically be a first driving part and a second driving part that respectively control the opening and closing of the two clamping members. The first driving part and the second driving part are configured as two cylinder parts that can work independently without affecting each other.

[0050] refer to Figure 4 For the convenience of understanding, the two clamping members are defined as a first clamping member 320 and a second clamping member 330, respectively. The first clamping member 320 and the second clamping member 330 are connected to the first driving part and the second driving part respectively.

[0051] That is, the first driving unit controls the movement of the first clamping member 320 , and the second driving unit controls the movement of the second clamping member 330 .

[0052] In order to ensure the uniformity of the movements of the first clamping member 320 and the second clamping member 330 , the specific actions of the first driving unit and the second driving unit are controlled by a control system to achieve the first clamping member 320 and the second clamping member 330 to move closer to or farther from each other.

[0053] In some other embodiments of the present application, the driving member 310 is a bidirectional air cylinder or a bidirectional hydraulic cylinder, which includes a first telescopic end and a second telescopic end that telescope in opposite directions.

[0054] The two clamping members are respectively connected to the first telescopic end and the second telescopic end. After the bidirectional cylinder is started, the first telescopic end and the second telescopic end are telescoped synchronously.

[0055] That is, the first telescopic end and the second telescopic end respectively drive the first clamping member 320 and the second clamping member 330 to move synchronously, thereby achieving the purpose of clamping and releasing the workpiece 400 .

[0056] A buffer member 360 is disposed inside the clamping portion, and a clamping position 301 is formed between the two clamping portions. The specific shape of the clamping position 301 is adapted to the shape of the clamping position 301 of the workpiece 400 .

[0057] The clamping portion is a clamping recess formed on each clamping member, that is, the clamping portion is specifically a groove arranged on one side of the clamping member.

[0058] refer to Figure 5 The buffer member 360 is a rubber strip disposed in the clamping recess. The rubber strip has a certain elasticity and is in direct contact with the workpiece 400 during specific clamping, which is beneficial to improving the clamping degree of the workpiece 400. The rubber strip also plays a certain protective role on the outer surface of the workpiece 400.

[0059] When the outer periphery of the workpiece 400 is in a square shape, the clamping portion is specifically a U-shaped groove, and the clamping position 301 composed of the two clamping portions forms a square clamping position 301 that matches the outer periphery of the workpiece 400 in the clamping state.

[0060] In some other embodiments, the outer circumference of the workpiece 400 is circular, the clamping portion is an arc-shaped clamping recess, and a circular clamping position 301 is formed between the two clamping portions.

[0061] Reference here Figure 4 The upper surface and lower surface of the clamping part are respectively detachably connected with an upper cover plate 370 and a lower cover plate 380, a through connecting hole is formed on the clamping part, an internal thread is formed in the connecting hole, and through holes adapted to the position of the connecting hole are formed on the upper cover plate 370 and the lower cover plate 380.

[0062] The upper cover plate 370 and the lower cover plate 380 are detachably connected to the clamping portion by fastening screws, respectively. The fastening screws pass through the upper cover plate 370 or the lower cover plate 380, and the fastening screws are fixed to the clamping portion by threaded connection.

[0063] The buffer member 360 is compressed between the upper cover plate 370 and the clamping member, and / or between the lower cover plate 380 and the clamping member. To improve stability, preferably, the buffer member 360 is provided between the upper cover plate 370 and the clamping member, and between the lower cover plate 380 and the clamping member.

[0064] Installation grooves are formed on the upper and lower surfaces of the clamping member. The installation groove formed on the upper surface has two directions, inward and upward. During installation, the buffer member 360 is placed in the installation groove. When not subject to external force, the buffer member 360 partially extends out of the installation groove from two opening directions.

[0065] After the buffer member 360 is connected, the upper cover plate 370 is fixed on the upper surface of the clamping member by tightening the screws. After the upper cover plate 370 is connected, the buffer member 360 is pressed tightly into the installation groove. Only a portion of the buffer member 360 extends into the clamping portion and can be directly contacted and connected with the workpiece 400.

[0066] Similarly, the lower cover plate 380 fixes the buffer member 360 in the mounting groove formed on the lower surface of the clamping member. In the actual clamping state, the upper and lower parts of the clamping member are respectively connected to the workpiece 400 through the buffer member 360, thereby increasing the contact area between the buffer member 360 and the workpiece 400, which is beneficial to improving the stability of clamping the workpiece 400.

[0067] In some embodiments of the present application, in order to improve the stability of the first clamping member 320 and the second clamping member 330 during the opening and closing process, a guide member 230 is further provided on the connecting member 200, and a guide portion 231 consistent with the moving direction of the clamping member is formed on the guide member 230, and a guide rail portion 350 is respectively formed on each clamping member, and the guide rail portion 350 is configured to be movably connected to the guide portion 231.

[0068] Specifically, the guide portion 231 is a guide groove formed on the guide member 230 , and the guide rail portion 350 is connected in the guide groove and moves along the guide groove along with the clamping member.

[0069] During the opening and closing process of the first clamping member 320 and the second clamping member 330 , the corresponding guide rail portions 350 move along the guide member 230 respectively, so as to improve the movement accuracy and stability of the clamping members.

[0070] In some other embodiments of the present application, an elastic member 340 is further disposed between the two clamping members, and the elastic member 340 is specifically a spring.

[0071] Two ends of the elastic member 340 are respectively fixed on the two clamping members, and the elastic member 340 is configured to gradually extend as the two clamping members move away from each other.

[0072] Specifically, when the first clamping member 320 and the second clamping member 330 are in a closed state, that is, the workpiece 400 is in a clamped state, the elastic member 340 is in a free state or a slightly extended state.

[0073] As the first clamping member 320 and the second clamping member 330 gradually move away from each other, the elastic member 340 whose two ends are respectively fixed on the first clamping member 320 and the second clamping member 330 is gradually stretched.

[0074] During the process of clamping and conveying the workpiece 400, under the action of its own restoring force, the elastic member 340 can keep the first clamping member 320 and the second clamping member 330 in a closed state when the driving member 310 such as the hydraulic cylinder is out of air or the air pressure is insufficient, thereby ensuring that the workpiece 400 does not fall off and improving the safety of clamping.

[0075] In some other embodiments of the present application, the robot 100 is connected to at least two clamping assemblies 300 via a connecting plate 220 , and the number of the clamping assemblies 300 is two for example.

[0076] Reference again Figure 3 The connecting member 200 includes an adapter portion 210 and a connecting plate 220 . The connecting plate 220 is connected to the robot 100 via the adapter portion 210 . A set of clamping components 300 are respectively connected to both ends of the connecting plate 220 .

[0077] The robot 100 can realize the movement and rotation of the clamping components 300 at both ends through the connecting piece 200. The specific change of the position of the clamping component 300 by the robot 100 is the existing technology, which is not the design focus of this application and will not be described in detail here.

[0078] Detection members 500 are respectively installed at both ends of the connection plate 220 , and the detection members 500 are used to detect whether there is a workpiece 400 on the corresponding clamping assembly 300 .

[0079] When two clamping assemblies 300 are connected to the connecting member 200, continuous loading and unloading can be achieved:

[0080] The two clamping assemblies 300 are defined as a first clamping assembly 300 and a second clamping assembly 300. The first clamping assembly 300 is used for unloading, and the second clamping assembly 300 is used for loading.

[0081] The specific process is:

[0082] During the inspection process, the robot 100 drives the clamping assembly 300 to move to the storage position, the second clamping assembly 300 clamps the workpiece 400, and then moves to the inspection position. After the inspection is completed, the robot 100 drives the first clamping assembly 300 to grab the workpiece 400 after the inspection, and then the robot 100 places the workpiece 400 on the second clamping assembly 300 on the inspection position. After placement is completed, the inspection device inspects the workpiece 400.

[0083] During the inspection process, the robot 100 places the inspected workpiece 400 on the unloading table, then returns to the storage table, and the second clamping assembly 300 clamps another workpiece 400 to be inspected, and finally moves to the inspection station to carry out the next round of loading and unloading process.

[0084] The two clamping assemblies 300 work together to reduce the moving stroke of the robot 100 and improve the efficiency of loading and unloading.

[0085] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0086] The above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A clamping tool, characterized in that: include: robot; A connecting piece connected to the operating end of the robot; At least one clamping assembly is arranged on the connecting member, and the clamping assembly includes: a driving member and two clamping members, and the two clamping members are configured to be able to approach or move away from each other under the drive of the driving member; a clamping part is formed on each of the clamping members, a buffer part is formed on the inner side of the clamping part, and a clamping position is formed between the two clamping parts for clamping a workpiece.

2. The clamping tool according to claim 1, characterized in that: The clamping portion is a clamping recess formed on each of the clamping members, and the buffer member is a rubber strip arranged in the clamping recess.

3. The clamping tool according to claim 1, characterized in that: The upper surface and / or the lower surface of the clamping member are respectively formed with mounting grooves, and the buffer member is arranged in the mounting grooves.

4. The clamping tool according to claim 3, characterized in that: The upper surface and the lower surface of the clamping member are detachably connected with an upper cover plate and a lower cover plate, respectively, and the buffer member is fixed in the installation groove portion by the upper cover plate and / or the lower cover plate.

5. The clamping tool according to claim 2, characterized in that: The clamping portion is an arc-shaped clamping recess, and a circular clamping position is formed between the two clamping portions.

6. The clamping tool according to claim 1, characterized in that: The driving member is a bidirectional cylinder, which includes a first telescopic end and a second telescopic end that are telescopic in opposite directions, and the two clamping members are respectively connected to the first telescopic end and the second telescopic end.

7. The clamping tool according to claim 1, characterized in that: The connecting member is also provided with a guide member, on which a guide portion which is consistent with the moving direction of the clamping member is formed, and each of the clamping members is respectively formed with a guide rail portion, and the guide rail portion is configured to be movably connected to the guide portion.

8. The clamping tool according to claim 1, characterized in that: An elastic member is also provided between the two clamping members, and two ends of the elastic member are respectively fixed on the two clamping members. The elastic member is configured to gradually extend as the two clamping members move away from each other.

9. The clamping tool according to claim 1, characterized in that: The connecting member comprises an adapter and a connecting plate, the connecting plate is connected to the robot via the adapter, and two ends of the connecting plate are respectively connected with a group of clamping components.

10. The clamping tool according to claim 9, characterized in that: A detection member is installed on the connecting plate, and the detection member is used to detect whether there is a workpiece on the corresponding clamping assembly.

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