A clamping device for an industrial robot arm

Abstract

The utility model relates to industrial robot technical field, and disclose a kind of clamping devices for industrial robot mechanical arm, including mechanical arm body and mounting seat, the one end of the mechanical arm body close to mounting seat is fixedly installed with guide block and locating block one, the one end of the mechanical arm body close to mounting seat is equipped with thread hole one, the one end of the mounting seat close to mechanical arm body is equipped with insertion slot, guide slot, locating slot one and thread hole two. The clamping device for industrial robot mechanical arm, by the design of insertion slot, guide block and guide slot and locating block one and locating slot one, the quick positioning of clamping assembly can be realized, then cooperate with bolt, thread hole one and thread hole two, the opening fixing of clamping assembly can be realized, after long time use, it is convenient to overhaul or replace, by the design of multiple anti-skid grooves, when material is moved, turned and other complex actions by mechanical arm body, material can also be effectively prevented from sliding, guarantee the safety and reliability of operation process.

Description

Technical Field

[0001] This utility model relates to the field of industrial robot technology, specifically to a gripping device for an industrial robot arm. Background Technology

[0002] The gripping device for industrial robot arms is the core actuator for workpiece grasping and handling. Based on the driving method, it is mainly divided into three categories: pneumatic, electric, and hydraulic. Its core components include the gripping body, drive unit, transmission mechanism, and end effector. The gripping body provides structural support, the drive unit outputs power, the transmission mechanism converts the power into gripping action, and the end effector directly contacts the workpiece. Grippers or suction cups can be changed according to the workpiece shape and material. This device must meet three key requirements: first, accuracy, ensuring positioning errors are within millimeters or even micrometers; second, stability, the gripping force must be adapted to the workpiece weight to avoid slippage or damage; and third, adaptability, being compatible with workpieces of different specifications through quick gripper changes or force control technology. It is widely used in industrial scenarios such as automotive welding, electronic assembly, and logistics sorting.

[0003] Chinese Utility Model Patent Publication No. CN214604438U discloses a gripping device for an industrial robot arm. The device, as described in the specification, involves two gripping blocks of a gripping claw assembly moving closer together. Upon approach, the baffle of the gripping block contacts the material first, and the spring provides cushioning for a smooth gripping action, improving gripping safety. Simultaneously, when the baffle contacts and compresses the material, a rotating rod drives a fixed plate backward. The fixed plate then drives a piston rod to move within a sleeve. When the suction cup contacts the material, the piston rod continues to move, creating a vacuum suction and further providing gripping force, making the gripping more reliable. However, this gripping device for an industrial robot arm lacks an installation structure for the gripping components, making maintenance difficult after prolonged use. Furthermore, it lacks an anti-slip structure, making it prone to slippage when the robot arm moves or flips the material, resulting in low stability, poor practicality, and limited applicability. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a gripping device for industrial robot arms. It can effectively solve the problems in the prior art, which lacks an installation structure for gripping components, making it inconvenient to maintain after long-term use, and lacks an anti-slip structure, causing materials to easily slip when the robot arm moves, flips, or performs other complex actions, resulting in low stability, poor practicality, and difficulty in widespread use.

[0005] The technical solution adopted by this utility model is: a clamping device for an industrial robot arm, including an arm body and a mounting base. A guide block and a positioning block are fixedly installed on one end of the arm body near the mounting base. A threaded hole is opened on one end of the arm body near the mounting base. A slot, a guide groove, a positioning groove and a threaded hole are opened on the end of the mounting base near the arm body. A bolt is threadedly connected to one end of the arm body near the mounting base. A clamping assembly is fixedly installed on the end of the mounting base away from the arm body.

[0006] Preferably, the slot communicates with the guide groove, the guide block is adapted to the guide groove, the cross-section of the guide block is "L" shaped, and the positioning block and the positioning groove are plugged in.

[0007] Using the above technical solution, the operator inserts the positioning block into the positioning slot and the guide block into the slot. Then, the guide block is rotated so that it is engaged in the guide slot, which can achieve rapid positioning of the clamping component.

[0008] Preferably, the bolt extends through threaded hole one into threaded hole two, and threaded hole one and threaded hole two have the same diameter.

[0009] With the above technical solution, after the clamping component is quickly positioned, the operator can insert the bolt through the threaded hole one to the inside of the threaded hole two, which can realize the opening and fixing of the clamping component. After long-term use, it is convenient to inspect or replace it.

[0010] Preferably, the clamping assembly includes a bidirectional cylinder, a movable seat, a slide rail, a fixed frame, a second positioning block, a first through hole, a second positioning groove, a second through hole, a screw, a nut, a clamping plate, and an anti-slip groove. The movable seat is fixedly installed on the movable end of the bidirectional cylinder. The slide rail is fixedly installed on the side of the bidirectional cylinder away from the mounting seat. A fixed frame is provided at the end of the movable seat away from the bidirectional cylinder. A second positioning block is fixedly installed at the end of the fixed frame near the movable seat. A first through hole is formed on the outer wall of the second positioning block. A second positioning groove and a second through hole are formed on the end of the movable seat near the fixed frame. A screw is inserted into the end of the movable seat near the fixed frame. A nut is threaded onto the outer wall of the screw. A clamping plate is fixedly installed on the outer wall of the fixed frame. An anti-slip groove is formed on the outer wall of the clamping plate. The movable seat and the slide rail are slidably connected. The cross-section of the fixed frame is triangular.

[0011] Using the above technical solution, the operator activates the bidirectional cylinder, which retracts at its movable end, causing the moving seat to slide on the slide rail. This allows the two clamping plates to hold the material, facilitating material transfer. The fixed frame's triangular cross-section design enhances its load-bearing capacity and resistance to deformation due to the stability of triangles. When the clamping plates hold heavy objects, the pressure transmitted by the plates is effectively dispersed, preventing the fixed frame from bending or breaking due to excessive force and extending the service life of the clamping components.

[0012] Preferably, the anti-slip grooves are provided in multiple identical manner, and the multiple anti-slip grooves are distributed at equal intervals.

[0013] The above technical solution, through the design of multiple anti-slip grooves, can significantly increase the friction between the clamping plate and the material. When the clamping plate holds the material, the relative sliding between the material and the clamping plate is reduced by increasing the contact points. Even when the robotic arm moves the material to perform complex actions such as moving and flipping, it can effectively prevent the material from slipping, ensuring the safety and reliability of the operation process.

[0014] Preferably, the second positioning block and the second positioning groove are plugged in, and the cross-section of the second positioning block has a "T" shape.

[0015] Using the above technical solution, the staff can quickly position the fixed frame by inserting the second positioning block into the second positioning slot.

[0016] Preferably, the screw passes through both through hole two and through hole one, and the diameters of through hole two and through hole one are the same.

[0017] With the above technical solution, after the fixing frame is quickly positioned, the staff will pass the screw through the second through hole and the first through hole, and then connect the nut to the screw with a thread, which can realize the quick fixing of the fixing frame, and facilitate its quick disassembly and assembly during use or assembly.

[0018] Compared with the prior art, this utility model provides a gripping device for an industrial robot arm, which has the following advantages: 1. The clamping device for the industrial robot arm, through the design of slots, guide blocks and guide grooves, and positioning block one and positioning groove one, can realize the rapid positioning of the clamping components. With the addition of bolts, threaded hole one and threaded hole two, the clamping components can be opened and fixed. After long-term use, it is easy to inspect or replace them. The design of the fixed frame with a "triangular" cross-section structure, due to the stability of triangles, can improve the load-bearing capacity and deformation resistance of the fixed frame. When the clamping plate clamps heavy objects, it can effectively disperse the pressure transmitted by the clamping plate, prevent the fixed frame from bending or breaking due to excessive force, and extend the service life of the clamping components. 2. The gripping device for this industrial robot arm, through the design of multiple anti-slip grooves, can significantly increase the friction between the gripper and the material. When the gripper holds the material, the relative sliding between the material and the gripper is reduced by increasing the contact points. Even when the robot arm moves the material to perform complex actions such as moving and flipping, it can effectively prevent the material from slipping, ensuring the safety and reliability of the operation process. Through the cooperation of positioning block two, positioning groove two, screw, through hole two, and through hole one, the fixed frame can be quickly installed, making it easy to quickly disassemble and assemble during use or assembly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the installation structure of the clamping assembly of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the installation structure of the clamping assembly of this utility model. Figure 2 ; Figure 4 This is a schematic diagram of the disassembled structure of the clamping component of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the disassembled structure of the clamping component of this utility model. Figure 2 .

[0020] The components include: 1. Robotic arm body; 2. Mounting base; 3. Guide block; 5. Positioning block one; 6. Threaded hole one; 7. Slot; 8. Guide groove; 9. Positioning groove one; 10. Threaded hole two; 11. Bolt; 12. Clamping assembly; 1201. Two-way cylinder; 1202. Moving base; 1203. Slide rail; 1204. Fixing frame; 1205. Positioning block two; 1206. Through hole one; 1207. Positioning groove two; 1208. Through hole two; 1209. Screw; 1210. Nut; 1211. Clamping plate; 1212. Anti-slip groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] like Figure 1-5As shown, the present invention provides a clamping device for an industrial robot arm, comprising a robot arm body 1 and a mounting base 2. A guide block 3 and a positioning block 5 are fixedly installed at one end of the robot arm body 1 near the mounting base 2. A threaded hole 6 is provided at one end of the robot arm body 1 near the mounting base 2. A slot 7, a guide groove 8, a positioning groove 9 and a threaded hole 10 are provided at one end of the mounting base 2 near the robot arm body 1. A bolt 11 is threadedly connected to one end of the robot arm body 1 near the mounting base 2. A clamping assembly 12 is fixedly installed at one end of the mounting base 2 away from the robot arm body 1.

[0023] Specifically, slot 7 communicates with guide groove 8, guide block 3 is adapted to guide groove 8, and guide block 3 has an "L" shaped cross-section. Positioning block 5 and positioning groove 9 are plug-in installed. The advantage is that the operator inserts positioning block 5 into positioning groove 9 and guide block 3 into slot 7 at the same time, and then rotates guide block 3 so that guide block 3 is engaged in guide groove 8, which can achieve quick positioning of clamping component 12.

[0024] Specifically, bolt 11 extends through threaded hole 6 into threaded hole 10, and threaded hole 6 and threaded hole 10 have the same diameter. The advantage is that after the clamping assembly 12 is quickly positioned, the operator can extend bolt 11 through threaded hole 6 into threaded hole 10 to fix the clamping assembly 12, which facilitates maintenance or replacement after long-term use.

[0025] Specifically, the clamping assembly 12 includes a bidirectional cylinder 1201, a movable seat 1202, a slide rail 1203, a fixed frame 1204, a second positioning block 1205, a first through hole 1206, a second positioning groove 1207, a second through hole 1208, a screw 1209, a nut 1210, a clamping plate 1211, and an anti-slip groove 1212. The movable seat 1202 is fixedly installed on the movable end of the bidirectional cylinder 1201. The slide rail 1203 is fixedly installed on the side of the bidirectional cylinder 1201 away from the mounting base 2. The fixed frame 1204 is provided at the end of the movable seat 1202 away from the bidirectional cylinder 1201. The fixed frame 1204 is located near the movable seat 1202. A second positioning block 1205 is fixedly installed at one end. A through hole 1206 is opened on the outer wall of the second positioning block 1205. A positioning groove 1207 and a through hole 1208 are opened at one end of the movable seat 1202 near the fixed frame 1204. A screw 1209 is inserted and installed at one end of the movable seat 1202 near the fixed frame 1204. A nut 1210 is threadedly connected to the outer wall of the screw 1209. A clamping plate 1211 is fixedly installed on the outer wall of the fixed frame 1204. An anti-slip groove 1212 is opened on the outer wall of the clamping plate 1211. The movable seat 1202 and the slide rail 1203 are slidably connected. The cross section of the fixed frame 1204 is a triangular structure. The advantages are that when the operator starts the bidirectional cylinder 1201, the movable end of the bidirectional cylinder 1201 retracts, causing the movable seat 1202 to slide on the slide rail 1203, thereby allowing the two clamping plates 1211 to clamp the material, facilitating the transfer of the material. The design of the fixed frame 1204 with a triangular cross-section structure, due to the stability of the triangle, can improve the load-bearing capacity and deformation resistance of the fixed frame 1204. When the clamping plates 1211 clamp heavy objects, the pressure transmitted by the clamping plates 1211 is effectively dispersed, preventing the fixed frame 1204 from bending or breaking due to excessive force, and extending the service life of the clamping assembly 12. Example

[0026] like Figure 2-5 As shown, as an improvement on the previous embodiment, to further facilitate the installation of the fixing frame 1204, specifically, the positioning block 1205 and the positioning groove 1207 are plug-in installed, and the cross-section of the positioning block 1205 is a "T" shaped structure. The advantage is that the worker can quickly position the fixing frame 1204 by inserting the positioning block 1205 into the positioning groove 1207.

[0027] Specifically, the screw 1209 passes through through hole 1208 and through hole 1206, and the diameters of through hole 1208 and through hole 1206 are the same. The advantage is that after quickly positioning the bracket 1204, the operator can quickly fix the bracket 1204 by passing the screw 1209 through through hole 1208 and through hole 1206, and then thread the nut 1210 onto the screw 1209. This facilitates quick assembly and disassembly during use or assembly.

[0028] Specifically, multiple anti-slip grooves 1212 are provided, and these grooves are evenly spaced. The advantage is that the design of multiple anti-slip grooves 1212 significantly increases the friction between the clamping plate 1211 and the material. When the clamping plate 1211 holds the material, the relative sliding between the material and the clamping plate 1211 is reduced by increasing the contact points. Even when the robotic arm body 1 moves or flips the material, it effectively prevents the material from slipping, ensuring the safety and reliability of the operation.

[0029] Working Principle: During installation, the operator inserts positioning block 1205 into positioning slot 1207 to quickly position the fixing bracket 1204. After quickly positioning the fixing bracket 1204, the operator inserts screw 1209 through through hole 1208 and through hole 1206, and then threads nut 1210 onto screw 1209 to quickly fix the fixing bracket 1204, facilitating quick assembly and disassembly during use or assembly. Then, the operator inserts positioning block 5 into positioning slot 9 and guide block 3 into slot 7. Rotating guide block 3 causes it to engage with guide slot 8, quickly positioning the clamping component 12. After quickly positioning the clamping component 12, the operator inserts bolt 11 through threaded hole 6 to threaded hole 10, securing the clamping component 12. This facilitates maintenance or replacement after prolonged use. During use, the operator activates the bidirectional air supply. The movable end of cylinder 1201 retracts, causing the movable seat 1202 to slide on the slide rail 1203, thereby allowing the two clamping plates 1211 to clamp the material, facilitating material transfer. The fixed frame 1204 has a triangular cross-section design, which, due to the stability of a triangle, enhances the load-bearing capacity and deformation resistance of the fixed frame 1204. When the clamping plates 1211 clamp heavy objects, the pressure transmitted by the clamping plates 1211 is effectively dispersed, preventing the fixed frame 1204 from bending or breaking due to excessive force, thus extending the service life of the clamping assembly 12. The design of multiple anti-slip grooves 1212 significantly increases the friction between the clamping plates 1211 and the material. When the clamping plates 1211 clamp the material, the relative sliding between the material and the clamping plates 1211 is reduced by increasing the contact points. Even when the robotic arm body 1 moves and flips the material, it can effectively prevent the material from slipping, ensuring the safety and reliability of the operation process.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gripping device for an industrial robot arm, comprising a robot arm body (1) and a mounting base (2), characterized in that: The robotic arm body (1) is fixedly mounted with a guide block (3) and a positioning block (5) at one end near the mounting base (2). The robotic arm body (1) is provided with a threaded hole (6) at one end near the mounting base (2). The mounting base (2) is provided with a slot (7), a guide groove (8), a positioning groove (9) and a threaded hole (10) at one end near the robotic arm body (1). The robotic arm body (1) is threadedly connected with a bolt (11) at one end near the mounting base (2). The mounting base (2) is fixedly mounted with a clamping assembly (12) at one end away from the robotic arm body (1).

2. The gripping device for an industrial robot arm according to claim 1, characterized in that: The slot (7) is connected to the guide groove (8), the guide block (3) is adapted to the guide groove (8), the cross section of the guide block (3) is "L" shaped, and the positioning block (5) and the positioning groove (9) are plugged in.

3. The gripping device for an industrial robot arm according to claim 1, characterized in that: The bolt (11) extends through threaded hole one (6) into the interior of threaded hole two (10), the threaded hole one (6) and threaded hole two (10) having the same diameter.

4. The gripping device for an industrial robot arm according to claim 1, characterized in that: The clamping assembly (12) includes a bidirectional cylinder (1201), a movable seat (1202), a slide rail (1203), a fixing frame (1204), a second positioning block (1205), a first through hole (1206), a second positioning groove (1207), a second through hole (1208), a screw (1209), a nut (1210), a clamping plate (1211), and an anti-slip groove (1212). The movable seat (1202) is fixedly installed on the movable end of the bidirectional cylinder (1201). The slide rail (1203) is fixedly installed on the side of the bidirectional cylinder (1201) away from the mounting base (2). The fixing frame (1204) is provided at the end of the movable seat (1202) away from the bidirectional cylinder (1201). The end of the fixing frame (1204) close to the movable seat (1202) is provided. A positioning block two (1205) is fixedly installed. The outer wall of the positioning block two (1205) has a through hole one (1206). The movable seat (1202) near the fixed frame (1204) has a positioning groove two (1207) and a through hole two (1208). A screw (1209) is inserted into the movable seat (1202) near the fixed frame (1204). A nut (1210) is threaded onto the outer wall of the screw (1209). A clamping plate (1211) is fixedly installed on the outer wall of the fixed frame (1204). An anti-slip groove (1212) is opened on the outer wall of the clamping plate (1211). The movable seat (1202) and the slide rail (1203) are slidably connected. The cross section of the fixed frame (1204) is a "triangular" structure.

5. A gripping device for an industrial robot arm according to claim 4, characterized in that: The anti-slip grooves (1212) are provided in multiple identical manner, and the multiple anti-slip grooves (1212) are distributed at equal intervals.

6. The gripping device for an industrial robot arm according to claim 4, characterized in that: The second positioning block (1205) and the second positioning groove (1207) are installed by plugging in, and the cross section of the second positioning block (1205) is a "T" shaped structure.

7. A gripping device for an industrial robot arm according to claim 4, characterized in that: The screw (1209) passes through through hole two (1208) and through hole one (1206), and the diameters of through hole two (1208) and through hole one (1206) are the same.

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