A jig for inspecting and calibrating a robotic arm and its method of use.

Abstract

To provide a jig for inspection and calibration of a robot arm with such an advantage that calibration and attachment are easy, and a method for use thereof.SOLUTION: A robot arm base is fixedly connected to a bottom of a processing robot arm, a jig box for inspection and calibration is provided on a bottom of the robot arm base, a transmission assembly is provided on an outer side of the jig box for inspection and calibration, and the transmission assembly includes a screw.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technical field of inspection and calibration fixtures for robotic arms, and specifically relates to inspection and calibration fixtures for robotic arms and their usage methods.

Background Art

[0002] A robotic arm is a programmable device with multiple degrees of freedom and can perform various complex movements in space. A robotic arm is usually composed of a series of links, and each link can move freely within a certain range, so a robotic arm can execute various different tasks. A robotic arm may be used in an industrial production line to achieve automation of production and improve productivity, and may also be used in fields such as medicine, space, and deep sea to perform various dangerous or delicate tasks. A robotic arm has advantages such as high precision, high efficiency, high reliability, and high safety, but at the same time has some limitations, such as the need for programming and debugging, operation and maintenance, etc. Currently, robotic arms have already been widely applied in various fields, and with the continuous development of technology, the future of the application of robotic arms should be even broader.

[0003] In the installation of a robotic arm, in order to prevent displacement of the robotic arm from the installation position, it is necessary to position the installation position. Currently, positioning and installation are carried out manually by humans. During the installation process, the robotic arm is likely to sway and cause a certain degree of displacement, resulting in position displacement after the installation of the robotic arm. There is a need to improve accuracy, and also the stability of the robotic arm will decrease.

[0004] Therefore, since positioning and installation are currently performed manually, and the robot arm is prone to some degree of misalignment due to shaking during the installation process, positional errors occur after the robot arm is installed. To improve accuracy and effectively prevent a decrease in the stability of the robot arm, it is necessary to design and modify jigs for inspecting and calibrating the robot arm. [Overview of the project] [Problems that the invention aims to solve]

[0005] To address the problems raised in the background technology described above, the object of the present invention is to provide a jig for inspecting and calibrating a robot arm and a method for using the same, which has the advantage of being easy to calibrate and mount. Currently, positioning and mounting are performed manually by humans, and during the mounting process, the robot arm tends to shake and cause some degree of misalignment, which leads to positional misalignment after mounting the robot arm, necessitating increased accuracy, and also reduces the stability of the robot arm. The present invention solves these problems. [Means for solving the problem]

[0006] To achieve the above objective, the present invention proposes the following technical solution. According to the inspection and calibration jig and method of use of a robot arm including a machining robot arm, a robot arm base is fixedly connected to the bottom of the machining robot arm, an inspection and calibration jig box is provided at the bottom of the robot arm base, and a transmission assembly is provided on the outside of the inspection and calibration jig box. The transmission assembly includes a screw, the screw is slidably connected to the side wall of the inspection and calibration jig box, a screw sleeve is screwed into the screw, a positioning block is fixedly connected into the screw sleeve, and the positioning block is used in cooperation with the robot arm base. The bottom of the inspection and calibration jig box has a mounting opening and a fixing groove used in cooperation with the mounting opening, a fixing bolt is provided in the fixing groove, the fixing bolt is screwed onto the robot arm base, and a nut is screwed onto the tip of the surface of the fixing bolt. A protective assembly is provided on the top of the inspection and calibration jig box, and a position limiting assembly is provided on the outside of the positioning block.

[0007] Preferably, in the present invention, the protective assembly includes a protective cover, the protective cover is located on top of the inspection and calibration jig box, a screw is screwed to the top of the protective cover, and the screw is screwed to the top of the inspection and calibration jig box.

[0008] Preferably, in the present invention, the position limiting assembly includes a positioning rod, the positioning rod is slidably connected to an inspection and calibration jig box, the inner end of the positioning rod is fixedly connected to the outer end of a positioning block, and a stopper block is fixedly connected to the outer end of the positioning rod.

[0009] In the present invention, preferably, an operating block is fixedly connected to the outside of the screw, and a bearing seat is movably connected to the surface of the screw.

[0010] In the present invention, preferably, a support plate is fixedly connected to the bottom of the bearing seat, and the support plate is fixedly connected to the surface of the inspection and calibration jig box.

[0011] In the present invention, preferably, a slider is fixedly connected to the bottom of the positioning block, and a sliding groove is formed in the inner wall of the bottom of the inspection and calibration jig box so as to be slidably connected to the slider.

[0012] In the present invention, preferably, one or more vibration-damping pads are fixedly connected to the bottom of the inspection and calibration jig box, mounting blocks are fixedly connected to both the front and back of the inspection and calibration jig box, and a pad block is fixedly connected to the bottom of the mounting block.

[0013] The present invention preferably includes the following steps.

[0014] In step S1, if the user needs to position and calibrate the machining robot arm, first, the inspection and calibration jig box is installed in the appropriate position. The user then places the machining robot arm inside the inspection and calibration jig box, rotates the operating block, rotates the screw using the operating block, moves the screw sleeve by rotating the screw, and locks the positioning block to the robot arm base of the machining robot arm by moving the screw sleeve, thereby positioning the machining robot arm so that it does not move.

[0015] In step S2, the user inserts the fixing bolt into the fixing groove, screws it onto the robot arm base of the processing robot arm, and then secures the fixing bolt with a nut. This ensures the stability of the fixing bolt and effectively guarantees the stability and excellent accuracy of the mounting position after installation. [Effects of the Invention]

[0016] Compared to conventional technology, the beneficial effects of the present invention are as follows:

[0017] 1. According to the present invention, first, the inspection and calibration jig box is installed in an appropriate position, and the user places the machining robot arm inside the inspection and calibration jig box. Then, the user rotates the operating block, rotates the screw using the operating block, moves the screw sleeve by rotating the screw, and locks the positioning block to the robot arm base of the machining robot arm by moving the screw sleeve, thereby positioning the machining robot arm so that it does not move. After installation, the user inserts the fixing bolt into the fixing groove and screws it onto the robot arm base of the machining robot arm, and then fixes the fixing bolt with a nut. This ensures the stability of the fixing bolt, and after installation, the stability and excellent accuracy of the mounting position can be effectively guaranteed. Replacing the conventional manual mounting and positioning method, this method achieves the effect of making calibration, positioning, and mounting of the machining robot arm easier, while also providing excellent stability and preventing wobbling during installation.

[0018] 2. According to the present invention, by providing a protection assembly, the top of the jig box for inspection and calibration can be sealed, effectively improving the safety of the jig box for inspection and calibration and facilitating its use by the user. By providing a position-limiting assembly, the position outside the positioning block can be restricted, ensuring the stable movement of the positioning block and facilitating its use by the user. By providing an operation block, the screw can be rotated, effectively improving the stability of the screw, avoiding the wobbling of the screw, and facilitating the operation by the user. By providing a support plate, the bearing seat can be supported and its position restricted, effectively avoiding the wobbling of the bearing seat and facilitating its use by the user. By providing a slider, the position at the bottom of the positioning block can be restricted, avoiding the inclination and wobbling of the positioning block and facilitating its use by the user. By providing a vibration-proof pad, buffering can be achieved at the bottom of the jig box for inspection and calibration, avoiding the sliding of the jig box for inspection and calibration from the mounting position, and improving the stability of the jig box for inspection and calibration.

Brief Description of the Drawings

[0019] [Figure 1] It is a three-dimensional schematic diagram of the structure of the present invention. [Figure 2] It is a three-dimensional exploded schematic diagram of the structure of the present invention. [Figure 3] It is a three-dimensional left-side schematic diagram of the structure of the present invention. [Figure 4] It is a three-dimensional bottom schematic diagram of the structure of the present invention. [Figure 5] It is an enlarged schematic diagram at A in FIG. 2 of the structure of the present invention. [Figure 6] It is an enlarged schematic diagram at A in FIG. 3 of the structure of the present invention.

Embodiments for Carrying out the Invention

[0020] The following describes the technical concepts in the embodiments of the present invention clearly and completely, in combination with the accompanying drawings. It is clear that the embodiments described are not all embodiments of the present invention, but only a selection. All other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of the present invention fall within the scope of the present invention.

[0021] As shown in Figures 1 to 6, the inspection and calibration jig and method of use for a robot arm provided by the present invention includes a machining robot arm 1, a robot arm base 2 fixedly connected to the bottom of the machining robot arm 1, an inspection and calibration jig box 3 provided on the bottom of the robot arm base 2, and a transmission assembly 4 provided on the outside of the inspection and calibration jig box 3. The transmission assembly 4 includes a screw 41, which is slidably connected to the side wall of the inspection and calibration jig box 3, a screw sleeve 42 is screwed inside the screw 41, and a positioning block 43 is fixedly connected inside the screw sleeve 42, and the positioning block 43 is used in cooperation with the robot arm base 2. The bottom of the inspection and calibration jig box 3 has a mounting opening 5 and a fixing groove 6 that works in cooperation with the mounting opening 5. A fixing bolt 7 is provided in the fixing groove 6, and the fixing bolt 7 is screwed onto the robot arm base 2. A nut 8 is screwed onto the tip of the surface of the fixing bolt 7. A protection assembly 9 is provided at the top of the inspection and calibration jig box 3, and a position limiting assembly 10 is provided outside the positioning block 43. When the user needs to position and calibrate the processing robot arm 1, first, the inspection and calibration jig box 3 is attached to an appropriate position. After the user places the processing robot arm 1 into the inspection and calibration jig box 3, the operation block 11 is rotated. The operation block 11 rotates the screw 41. The rotation of the screw 41 moves the nut sleeve 42. By locking the positioning block 43 to the robot arm base 2 of the processing robot arm 1 due to the movement of the nut sleeve 42, the processing robot arm 1 can be positioned so that it does not move. Then, the installation is carried out. After the user inserts the fixing bolt 7 into the fixing groove 6 and threads it onto the robot arm base 2 of the processing robot arm 1, the fixing bolt 7 is fixed using the nut 8. Thereby, the stability of the fixing bolt 7 is guaranteed, and after installation, the stability of the installation position and excellent accuracy can be effectively guaranteed. Currently, positioning and installation are performed manually by humans. During the installation process, the robot arm is likely to sway and cause a certain degree of deviation, resulting in a position deviation of the robot arm after installation. There is a need to improve the accuracy. Also, by solving the problem of the decrease in the stability of the robot arm, the effect of accurately attaching after calibration is achieved.

[0022] Referring to FIG. 2, the protection assembly 9 includes a protection cover 91. The protection cover 91 is located at the top of the inspection and calibration jig box 3. A screw 92 is screwed onto the top of the protection cover 91. The screw 92 is screwed onto the top of the inspection and calibration jig box 3.

[0023] As one technical optimization solution of the present invention, by providing the protection assembly 9, the top of the inspection and calibration jig box 3 can be sealed, effectively improving the safety of the inspection and calibration jig box 3 and facilitating use by the user.

[0024] Referring to Figure 5, the position limiting assembly 10 includes a positioning rod 101, which is slidably connected to the inspection and calibration jig box 3, the inner side of the positioning rod 101 is fixedly connected to the outer side of the positioning block 43, and the outer side of the positioning rod 101 is fixedly connected to a stopper block 102.

[0025] As one technical optimization of the present invention, by providing a position limiting assembly 10, the position outside the positioning block 43 can be restricted, thereby ensuring stable movement of the positioning block 43 and facilitating use by the user.

[0026] Referring to Figure 5, an operating block 11 is fixedly connected to the outside of the screw 41, and a bearing seat 12 is movably connected to the surface of the screw 41.

[0027] As one technical optimization of the present invention, by providing the operating block 11, the screw 41 can be rotated, effectively improving the stability of the screw 41, thereby preventing wobbling of the screw 41 and facilitating operation by the user.

[0028] Referring to Figure 5, a support plate 13 is fixedly connected to the bottom of the bearing seat 12, and the support plate 13 is fixedly connected to the surface of the inspection and calibration jig box 3.

[0029] As one technical optimization of the present invention, by providing a support plate 13, the bearing seat 12 can be supported and its position can be restricted, thereby effectively preventing wobbling of the bearing seat 12 and making it easier for the user to use.

[0030] Referring to Figure 5, a slider 14 is fixedly connected to the bottom of the positioning block 43, and a slide groove 15 is formed in the inner wall of the bottom of the inspection and calibration jig box 3 so as to be slidably connected to the slider 14.

[0031] As one technical optimization of the present invention, by providing the slider 14, the position of the bottom of the positioning block 43 can be restricted, thereby preventing tilting and wobbling of the positioning block 43 and facilitating use by the user.

[0032] Referring to Figure 2, one or more vibration-damping pads 16 are fixedly connected to the bottom of the inspection and calibration jig box 3, mounting blocks 17 are fixedly connected to both the front and back of the inspection and calibration jig box 3, and pad blocks 18 are fixedly connected to the bottom of the mounting blocks 17.

[0033] As one technical optimization of the present invention, by providing a vibration-damping pad 16, the bottom of the inspection and calibration jig box 3 is cushioned, preventing the inspection and calibration jig box 3 from sliding from the mounting position, and improving the stability of the inspection and calibration jig box 3.

[0034] Refer to Figure 1, which includes the following steps.

[0035] In step S1, if the user needs to position and calibrate the machining robot arm 1, first, the inspection and calibration jig box 3 is installed in the appropriate position. The user then places the machining robot arm 1 inside the inspection and calibration jig box 3, rotates the operation block 11, rotates the screw 41 with the operation block 11, moves the screw sleeve 42 by rotating the screw 41, and locks the positioning block 43 to the robot arm base 2 of the machining robot arm 1 by moving the screw sleeve 42, thereby positioning the machining robot arm 1 so that it does not move. Then, step S2 is performed to install it.

[0036] In step S2, the user inserts the fixing bolt 7 into the fixing groove 6, screws it onto the robot arm base 2 of the processing robot arm 1, and then secures the fixing bolt 7 with a nut 8. This ensures the stability of the fixing bolt 7 and effectively guarantees the stability and excellent accuracy of the mounting position after installation.

[0037] The operating principle and usage procedure of the present invention are as follows. When the user needs to position and calibrate the machining robot arm 1 during use, first, the inspection and calibration jig box 3 is installed in the appropriate position, the user places the machining robot arm 1 inside the inspection and calibration jig box 3, then rotates the operation block 11, which rotates the screw 41, moves the screw sleeve 42 by rotating the screw 41, and locks the positioning block 43 to the robot arm base 2 of the machining robot arm 1 by moving the screw sleeve 42, thereby positioning the machining robot arm 1 so that it does not move. After installation, the user inserts the fixing bolt 7 into the fixing groove 6 and screws it onto the robot arm base 2 of the machining robot arm 1, and then fixes the fixing bolt 7 with a nut 8, thereby ensuring the stability of the fixing bolt 7 and effectively guaranteeing the stability and excellent accuracy of the mounting position after installation. Currently, positioning and installation are performed manually by humans. During the installation process, the robot arm tends to shake and cause some degree of misalignment, leading to positional errors after installation. This necessitates improved accuracy, and by resolving the issue of reduced robot arm stability, we have achieved the effect of accurate installation after calibration.

[0038] As described above, this inspection and calibration jig and method of use for the robot arm solves the problems currently faced by humans who manually position and mount the robot arm. During the mounting process, the robot arm tends to shake and shift to some extent, leading to positional errors after mounting. This necessitates increased accuracy and reduced stability of the robot arm.

[0039] In this specification, relational terms such as "First" and "Second" are used solely to distinguish one entity or operation from another, and do not necessarily require or suggest that such an actual relationship or order exists between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, meaning that a set of elements in a process, method, article, or apparatus includes not only those elements but also other elements not explicitly listed, or elements specific to this type of process, method, article, or apparatus.

[0040] While embodiments of the present invention have been illustrated and described, those skilled in the art will understand that various modifications, alterations, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is limited by the appended claims and equivalents. [Explanation of symbols]

[0041] 1. Robot arm for machining 2 Robot arm base 3. Test and calibration jig box 4. Transmission Assembly 41 Screw 42 Screw sleeves 43 Positioning block 5 mounting holes 6 Fixed groove 7 Fixing bolts 8 nuts 9 Protection assembly 91 Protective Cover 92 screws 10 Position-restricting assembly 101 Positioning rod 102 Stopping block 11 Operation Blocks 12 Bearing seat 13 Support plate 14 Sliders 15 slide grooves 16 Vibration damping pads 17 Mounting Block 18 Pod Blocks

Claims

1. A jig for inspecting and calibrating a robot arm, including a processing robot arm (1), A robot arm base (2) is fixedly connected to the bottom of the processing robot arm (1), an inspection and calibration jig box (3) is provided on the bottom of the robot arm base (2), and a transmission assembly (4) is provided on the outside of the inspection and calibration jig box (3). The transmission assembly (4) includes a screw (41), the screw (41) is rotatably connected to the side wall of the inspection and calibration jig box (3), a screw sleeve (42) is screwed into the inside of the screw (41), a positioning block (43) is fixedly connected into the inside of the screw sleeve (42), and the positioning block (43) is used in cooperation with the robot arm base (2). The bottom of the inspection and calibration jig box (3) has a mounting opening (5) and a fixing groove (6) used in cooperation with the mounting opening (5). A fixing bolt (7) is provided in the fixing groove (6), and the fixing bolt (7) is screwed onto the robot arm base (2). A nut (8) is screwed onto the tip of the surface of the fixing bolt (7). A protective assembly (9) is provided on the top of the inspection and calibration jig box (3), and a position limiting assembly (10) is provided on the outside of the positioning block (43) to restrict the position of the positioning block (43) so that the positioning block (43) can move only in a direction parallel to the axial direction of the screw (41). A jig for inspecting and calibrating a robotic arm, characterized by the following features.

2. The protective assembly (9) includes a protective cover (91), which is located on top of the inspection and calibration jig box (3), and a screw (92) is screwed onto the top of the protective cover (91), and the screw (92) is screwed onto the top of the inspection and calibration jig box (3). The inspection and calibration jig for a robot arm as described in claim 1.

3. The position limiting assembly (10) includes a positioning rod (101), which is slidably connected to an inspection and calibration jig box (3), the inner end of the positioning rod (101) is fixedly connected to the outer end of a positioning block (43), and the outer end of the positioning rod (101) is fixedly connected to a stopper block (102). The inspection and calibration jig for a robot arm as described in claim 1.

4. An operating block (11) is fixedly connected to the outside of the screw (41), and a bearing seat (12) is movably connected to the surface of the screw (41). The inspection and calibration jig for a robot arm as described in claim 1.

5. A support plate (13) is fixedly connected to the bottom of the bearing seat (12), and the support plate (13) is fixedly connected to the surface of the inspection and calibration jig box (3). The inspection and calibration jig for a robot arm as described in feature 4.

6. A slider (14) is fixedly connected to the bottom of the positioning block (43), and a slide groove (15) is formed in the inner wall of the bottom of the inspection and calibration jig box (3) so as to be slidably connected to the slider (14). The inspection and calibration jig for a robot arm as described in claim 1.

7. One or more vibration-damping pads (16) are fixedly connected to the bottom of the inspection and calibration jig box (3), mounting blocks (17) are fixedly connected to both the front and back of the inspection and calibration jig box (3), and a pad block (18) is fixedly connected to the bottom of the mounting block (17). The inspection and calibration jig for a robot arm as described in claim 1.

8. A method for using the inspection and calibration jig for a robot arm according to claim 4, When the user needs to position and calibrate the machining robot arm (1), first, the inspection and calibration jig box (3) is installed in the appropriate position, the user places the machining robot arm (1) inside the inspection and calibration jig box (3), then rotates the operating block (11), the operating block (11) rotates the screw (41), the rotation of the screw (41) moves the screw sleeve (42), and the movement of the screw sleeve (42) locks the positioning block (43) to the robot arm base (2) of the machining robot arm (1), thereby positioning the machining robot arm (1) so that it does not move, in step S1. Step S2 involves the user inserting the fixing bolt (7) into the fixing groove (6), screwing it onto the robot arm base (2) of the processing robot arm (1), and then fixing the fixing bolt (7) using a nut (8). A method for using a jig for inspecting and calibrating a robot arm, characterized by including the following:

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