Auxiliary fixing devices for industrial robots

Abstract

The present invention relates to the technical field of industrial robots, and discloses an auxiliary fixing device for an industrial robot, comprising: a workbench, a placement tube for accommodating a base of an industrial robot fixedly arranged on the workbench, a fixed platform fixedly connected to the base of the industrial robot slidably inserted in the placement tube, a clamping member for fixing the fixed platform arranged in the placement tube, and a release member for releasing the clamping state of the fixed platform arranged in the placement tube. In the present invention, a clamping force can be applied synchronously from the circumference of the fixed platform through multiple groups of evenly distributed clamping members to ensure that the fixed platform is subjected to balanced force. The ball group realizes the linkage between the support block and the clamping block through ball transmission, so that the clamping action is continuous and the response is stable. The inclined surface design of the trapezoidal block of the support block cooperates with the arc surface at the top of the support rod, which can convert the downward movement force of the fixed platform into the clamping force of the clamping block, realizing automatic clamping under gravity drive, and can complete the fixation without the need for an additional power source.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial robots, in particular to an auxiliary fixing device for industrial robots. Background Art

[0002] An industrial robot is a programmable, multi-degree-of-freedom automated mechanical device, mainly used for welding, handling, assembly and other tasks in industrial production. It has the characteristics of high precision, high repeatability and strong environmental adaptability. The auxiliary fixture for industrial robots is an indispensable auxiliary component in the industrial robot operation system. It is mainly used to position, clamp, support or limit workpieces, tools or robot bodies to ensure that the robot can achieve high-precision and high-stability operation during welding, assembly, handling, processing and other operations. Its core function is to eliminate the displacement, vibration or posture deviation of the work object or the robot itself, provide a reliable operating benchmark for the robot, and is a key equipment to ensure production consistency and safety.

[0003] The Chinese patent application with publication number CN119635721A discloses an auxiliary fixing device for an industrial robot, comprising a device body, a base plate, and a robot body. The device body and the base plate are connected by a shock-absorbing mechanism. A mounting slot is provided on the top of the device body, and the robot body is mounted inside the mounting slot. A mounting mechanism is provided inside the device body. Rotating plates are mounted at the four corners of the top of the device body via a rotating shaft. A supporting mechanism is provided on the tops of the multiple rotating plates. Protective mechanisms are provided on the four sides of the device body. This patent allows for rapid installation and fixing of the robot body through the mounting mechanism provided inside the device body. Furthermore, when the robot body needs to be replaced or repaired, the robot body can also be quickly disassembled, thereby improving the working efficiency of the robot body and making the robot body better suited for human use.

[0004] However, most industrial robots in the prior art use bolts to fix the robot on the work surface. When fixed by bolts, it is difficult to achieve uniform force on the circumference. Uneven distribution of bolts or differences in tightening force can easily lead to unbalanced force on the fixing platform, affecting the stability of the industrial robot's operation. There is a lack of matching structures such as limit plates and limit slots. Under the vibration generated by the robot's operation, the bolts are easy to loosen, causing the fixed position to shift, making it difficult to ensure the clamping accuracy of long-term operation. In addition, the bolt tightening is an independent operation, the clamping action is scattered and the response is delayed, and the adjustment process is cumbersome, which not only consumes extra manpower and time, but may also lead to loose fixation due to human operation errors. Summary of the Invention

[0005] In order to solve the problem in the prior art that it is difficult to ensure the clamping accuracy for long-term operation, and the bolt tightening is an independent operation, the clamping action is scattered and the response is delayed, and the adjustment process is cumbersome, which not only consumes additional manpower and time, but may also cause loose fixation due to human operation errors, the present invention provides an auxiliary fixing device for industrial robots.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: an auxiliary fixing device for an industrial robot, comprising: a workbench, a placement cylinder for accommodating a base of the industrial robot fixedly disposed on the workbench, a fixing table fixedly connected to the base of the industrial robot slidably inserted into the placement cylinder, a clamping member for fixing the fixing table disposed within the placement cylinder, and a release member for releasing the clamping state of the fixing table disposed within the placement cylinder;

[0007] The clamping member includes a movable groove provided on the inner side of the placement tube, a mounting hole is provided through the bottom end of the placement tube, a support rod is inserted into the mounting hole, a shell is slidably connected to the movable groove, a ball group consisting of multiple groups of balls abutting each other is slidably provided in the shell, a clamping block is provided at the top end of the shell, one end of the clamping block passes through the top end of the shell and is fixedly connected to one group of balls in the ball group, a support block is provided at the bottom end of the shell, one end of the support block passes through the bottom end of the shell and is fixedly connected to another group of balls in the ball group;

[0008] Among them, after the fixed table connected to the base of the industrial robot is placed in the placement cylinder, it moves downward due to gravity and abuts against the support block, pushing it to move downward synchronously, and then driving the outer shell, the ball group and the clamping block to move downward together in the moving groove. When the inclined surface at the bottom end of the support block contacts the top of the support rod, under the action of the inclined surface guidance and the abutment force, the support block moves toward the inside of the moving groove, pushing the ball group to roll in the outer shell, driving the clamping block to move toward the fixed table, and finally abutting against the top of the fixed table to achieve clamping and fixation.

[0009] As a further solution of the present invention: a limiting groove is provided at an inner side end of the movable groove, a limiting plate is fixedly connected to the side end of the shell, the limiting plate passes through the movable groove and is slidably plugged into the limiting groove.

[0010] As a further solution of the present invention: the releasing member includes a limit block fixedly connected to the inner wall of the mounting hole, the top of the limit block is fixedly connected to a stop block, and the side end of the support rod is fixedly connected to a limit block. In the initial state, the support rod passes through the mounting hole, so that the bottom end of the limit block abuts against the top end of the limit block, and the side end of the limit block abuts against the side end of the stop block, so that the support rod is limited to the current height.

[0011] As a further solution of the present invention: the bottom end of the support rod passes through the placement tube and is fixedly connected to gear 1, and one end of the gear 1 is meshedly connected to gear 2.

[0012] As a further solution of the present invention: the bottom end of the placement cylinder is fixedly connected to a spring, the bottom end of the spring is fixedly connected to a rotating ring, the rotating ring is embedded in the top of the second gear and is rotatably connected to the second gear.

[0013] As a further solution of the present invention: a connecting groove 1 is provided at the bottom end of the gear 1, and a connecting groove 2 is provided at the bottom end of the gear 2.

[0014] As a further solution of the present invention: sliding block 1 is slidably connected in the connecting groove 1, sliding block 2 is slidably connected in the connecting groove 2, the bottom end of sliding block 1 is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to sliding block 2.

[0015] As a further solution of the present invention: a reset rod is fixedly connected to the bottom end of the movable groove. When the height limit of the support rod is released, the fixed platform continues to move downward due to gravity. During the downward movement, the fixed platform pushes the support block to continue to move downward until the inclined surface of the support block abuts against the reset rod. Under the guidance of the inclined surface and the abutment force, the support block moves toward the fixed platform and is reset. Under the action of the rolling ball group, the clamping block is synchronously reset, thereby releasing the clamping of the fixed platform.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention uses multiple groups of evenly distributed clamping parts to synchronously apply clamping force from the periphery of the fixed table, ensuring balanced force on the fixed table and improving the stability of the industrial robot installation. The limit plates on the side ends of the shell are slidably plugged into the limit slots on both sides of the movable slot to limit the displacement of the shell during movement and ensure clamping accuracy. The ball group realizes the linkage between the support block and the clamping block through ball transmission, making the clamping action coherent and the response stable. The spacing between the clamping block and the support block matches the height of the fixed table, which can accurately adapt to the clamping requirements of the fixed table. The inclined surface design of the trapezoidal block of the support block cooperates with the arc surface at the top of the support rod, which can convert the downward force of the fixed table into the clamping force of the clamping block, realizing automatic clamping under gravity drive, and can complete the fixation without an additional power source;

[0018] 2. In the present invention, the meshing design of gear 2 and multiple groups of gear 1 can realize synchronous rotation control of multiple support rods, ensuring that the release actions of each limit point are coordinated and consistent. The linkage structure of sliding block 1, sliding block 2 and connecting rod enables the gears to achieve smooth axial movement during rotation, avoiding transmission jamming. The cooperation of the spring and the rotating ring can automatically drive the various components to reset after the fixed platform is removed, simplifying the operation process. The contact design between the reset rod and the inclined surface of the support block converts the downward force into a reset force, realizing automatic reset of the clamping block. The limit block and the stop block have a limiting effect on the limit block, ensuring that the support rod position is stable in the fixed state and preventing accidental loosening. The uniform distribution of multiple groups of springs makes the force of gear 2 balanced during the up and down movement, ensuring the stability of the reset action. The rotating ring is rotatably connected to gear 2 to avoid twisting of the spring when the gear rotates, thereby extending the service life of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a cross-sectional view of the initial state of the overall structure of the present invention;

[0021] Figure 3 This is a cross-sectional view of the clamping state of the overall structure of the present invention;

[0022] Figure 4 is a cross-sectional view of the overall structure of the present invention in a released state;

[0023] Figure 5 It is a schematic structural diagram of the placement tube in the present invention;

[0024] Figure 6 It is a structural schematic diagram of the clamping member in the present invention;

[0025] Figure 7 It is a structural diagram of the rolling ball group in the present invention;

[0026] Figure 8 It is a schematic diagram of the internal structure of the mounting hole in the present invention;

[0027] Figure 9 It is a schematic structural diagram of the release member in the present invention;

[0028] Figure 10 It is a bottom view of the release member of the present invention.

[0029] In the figure: 1. workbench; 2. placing cylinder; 3. clamping part; 31. moving groove; 32. limiting groove; 33. mounting hole; 34. support rod; 35. housing; 36. limiting plate; 37. ball group; 38. clamping block; 39. support block; 4. fixed platform; 5. releasing part; 51. limiting block; 52. stop block; 53. limiting block; 54. reset rod; 55. gear one; 56. connecting groove one; 57. gear two; 58. connecting groove two; 59. connecting rod; 510. rotating ring; 511. spring; 512. sliding block one; 513. sliding block two. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figures 1 to 4 In an embodiment of the present invention, an auxiliary fixing device for an industrial robot includes: a workbench 1, a placement cylinder 2 for accommodating a base of the industrial robot is fixedly provided on the workbench 1, a fixing table 4 fixedly connected to the base of the industrial robot is slidably inserted into the placement cylinder 2, a top of the fixing table 4 is provided with multiple groups of threaded holes, the industrial robot is threadedly connected to the threaded holes through bolts, a clamping member 3 for fixing the fixing table 4 is provided in the placement cylinder 2, and a releasing member 5 for releasing the clamping state of the fixing table 4 is provided in the placement cylinder 2.

[0032] Reference Figures 5 to 7The clamping member 3 includes a movable groove 31 provided on the inner side of the placement tube 2. The top of the movable groove 31 passes through the placement tube 2. A mounting hole 33 is provided at the bottom end of the placement tube 2. A support rod 34 is inserted into the mounting hole 33. The top of the support rod 34 is an arc surface. The inner diameter of the mounting hole 33 is larger than the diameter of the support rod 34. A shell 35 is slidably connected in the movable groove 31. The shell 35 is in the shape of a mouth and is hollow inside. Its four corners are beveled, and a connecting groove is provided at the top and bottom straight surfaces of the shell 35. A ball group 37 composed of multiple groups of balls abutting each other is slidably provided in the shell 35. The diameter of the ball group 37 is larger than the width of the connecting groove. The top of the shell 35 is set There is a clamping block 38, which consists of a group of rectangular blocks and a group of connecting blocks. The connecting block is located at the bottom of the rectangular block. The connecting block in the clamping block 38 passes through the connecting groove opened at the top of the shell 35 and is fixedly connected to a group of balls in the ball group 37. A supporting block 39 is provided at the bottom of the shell 35. The supporting block 39 consists of a group of trapezoidal blocks and a group of connecting blocks. The two inclined surfaces of the trapezoidal blocks face downward. The connecting block in the supporting block 39 passes through the connecting groove opened at the bottom of the shell 35 and is fixedly connected to another group of balls in the ball group 37. The spacing between the clamping block 38 and the supporting block 39 is the same as the height of the fixed platform 4. A limiting groove 32 is provided at the inner side end of the movable groove 31. There are two groups of limit grooves 32, which are symmetrically distributed on both sides of the moving groove 31. The limit grooves 32 are convex. The side ends of the shell 35 are fixedly connected to the limit plates 36. There are two groups of limit plates 36, which are symmetrically distributed on both sides of the shell 35. Each group of limit plates 36 passes through a group of moving grooves 31 and is slidably plugged into the limit grooves 32. There are multiple groups of clamping members 3, which are evenly distributed in the placement cylinder 2. When the fixed platform 4 connected to the base of the industrial robot is placed in the placement cylinder 2, the fixed platform 4 moves down along the inner wall of the placement cylinder 2 due to gravity, abuts against the trapezoidal block of the support block 39 and pushes it to move down synchronously. The support block 39 drives the ball group 37, the shell 35 and the clamping block 38 to move down, and the shell The limit plates 36 at the side ends of 35 slide along the limit grooves 32 on both sides of the moving groove 31 to limit the deviation. When the lower inclined surface of the trapezoidal block of the support block 39 contacts the arc surface of the top end of the support rod 34, under the action of the inclined surface guidance and the abutment force, the support block 39 moves toward the inside of the moving groove 31, and its connecting block pushes the ball group 37 to roll in the hollow cavity of the shell 35. The ball group 37 drives the connecting block of the clamping block 38 to move toward the fixed platform 4, so that the rectangular block of the clamping block 38 extends outward and abuts against the top end of the fixed platform 4. At this time, the bottom end of the fixed platform 4 abuts against the trapezoidal block of the support block 39 and the arc surface of the top end of the support rod 34 respectively, and cooperates with the clamping of the clamping block 38 to fix the fixed platform 4.

[0033] The above scheme is adopted: through multiple groups of clamping parts 3 evenly distributed in the placement tube 2, the clamping force can be applied synchronously from the side of the fixed platform 4 to ensure that the fixed platform 4 is subjected to balanced force, and the limit plates 36 at the side ends of the shell 35 are slidably plugged into the limit grooves 32 on both sides of the movable groove 31 to limit the displacement of the shell 35 during the movement and ensure the clamping accuracy. The ball group 37 realizes the linkage between the support block 39 and the clamping block 38 through ball transmission, so that the clamping action is continuous and the response is stable. The spacing between the clamping block 38 and the support block 39 matches the height of the fixed platform 4, which can accurately adapt to the clamping requirements of the fixed platform 4. The inclined design of the trapezoidal block of the support block 39 cooperates with the arc surface at the top of the support rod 34, which can convert the downward movement force of the fixed platform 4 into the clamping force of the clamping block 38, realizing automatic clamping under gravity drive, and can complete the fixation without an additional power source.

[0034] Reference Figures 8 to 10The release member 5 includes a limit block 51 fixedly connected to the inner wall of the mounting hole 33. The limit block 51 is an annular block, and its inner diameter is the same as the diameter of the support rod 34. The top of the limit block 51 is fixedly connected to a stop block 52. The limit block 51 and the stop block 52 are distributed in an L shape. The limit blocks 51 and the stop blocks 52 are each provided with two groups, which are symmetrically distributed in the mounting hole 33. There is a gap in the diameter of the two groups of limit blocks 51 to allow the stop block 52 to pass through. The side end of the support rod 34 is fixedly connected with a limit block 53. The limit blocks 53 are provided with two groups, which are symmetrically distributed on the side ends of the support rod 34. The bottom end of each group of support rods 34 passes through a group of mounting holes 33 and is fixedly connected to a group of gears 1 55. One end of multiple groups of gears 1 55 is meshed with the same group of gears 2 57. The bottom end of the placement cylinder 2 is fixedly connected to a spring 51 1. There are multiple groups of springs 511, which are evenly distributed at the bottom of the placement tube 2. The bottom of the multiple groups of springs 511 is fixedly connected to a group of rotating rings 510. The rotating rings 510 are convex. The rotating rings 510 are embedded in the top of the gear 2 57 and are rotatably connected to the gear 2 57. A group of connecting grooves 56 are opened at the bottom of each group of gears 1 55, and a connecting groove 2 58 is opened at the bottom of the gear 2 57. The connecting grooves 1 56 and the connecting grooves 2 58 are both inverted convex. A group of sliding blocks 1 512 is slidably connected in each group of connecting grooves 1 56, and multiple groups of sliding blocks 2 513 are slidably connected in the connecting grooves 2 58. The sliding blocks 1 512 and the sliding blocks 2 513 are T-shaped frustums. The bottom of each group of sliding blocks 1 512 is fixedly connected to a group of connecting rods 59. One end of each group of connecting rods 59 is connected to the A set of sliding blocks 513 are fixedly connected, and a set of reset rods 54 are fixedly connected to the bottom end of each set of moving grooves 31. The top of the reset rod 54 is an arc surface. The support rod 34 is arranged below the inclined surface on one side of the bottom end of the trapezoidal block in the support block 39. The reset rod 54 is arranged below the inclined surface on the other side of the bottom end of the trapezoidal block in the support block 39. When it is necessary to take out the fixed platform 4 and the connected industrial robot, manually rotate gear 2 57, gear 2 57 engages with multiple sets of gears 1 55, driving all gears 1 55 to rotate synchronously, and gear 1 55 drives the support rod 34 to rotate, so that the limit block 53 rotates with the support rod 34 to the gap between the two sets of limit blocks 51, releasing the limit on the support rod 34, and the fixed platform 4 continues to move downward under the action of gravity, pushing the support block 39 and the support rod 34 to move downward synchronously. , the support rod 34 drives the gear 1 55 to move downward, and under the linkage action of the sliding block 1 512, the sliding block 2 513 and the connecting rod 59, the gear 2 57 moves downward synchronously, and the spring 511 at the bottom of the cylinder 2 is stretched due to the rotating ring 510 moving downward with the gear 2 57. During the downward movement of the support rod 34, the inclined surface of the other side of the trapezoidal block of the support block 39 contacts the arc surface of the top end of the reset rod 54. Under the guidance of the inclined surface and the abutment force, the support block 39 moves toward the fixed platform 4 and resets. Its connecting block pushes the rolling ball group 37 to roll in the opposite direction, and the rolling ball group 37 drives the connecting block of the clamping block 38 to reset. The rectangular block of the clamping block 38 breaks away from the top end of the fixed platform 4 and releases the clamping. The trapezoidal block of the support block 39 is inserted between the fixed platform 4 and the support rod 34, and there is no clamping restriction on the top end of the fixed platform 4.It can be taken out from the placement tube 2. After the fixed platform 4 is taken out, the spring 511 returns to its original length, driving the rotating ring 510 to move upward. The rotating ring 510 pushes the gear 2 57 to move upward. The gear 2 57 drives the gear 1 55 to move upward through the sliding block 2 513, the connecting rod 59 and the sliding block 1 512. The gear 1 55 drives the support rod 34 to move upward. The top end of the support rod 34 pushes the support block 39 to move upward. The support block 39 drives the housing 35 to move upward. The limit plate 36 slides along the limit groove 32. The housing 35 drives the ball group 37 and the clamping block 38 to move upward until the limit block 53 moves above the limit block 51. At this time, the gear 2 57 is manually rotated, driving the gear 1 55 to rotate the support rod 34 until the limit block 53 abuts the side end of the stop block 52. The gear 2 57 can no longer rotate, and the entire reset is completed.

[0035] The above scheme is adopted: through the meshing design of gear 2 57 and multiple groups of gear 1 55, synchronous rotation control of multiple support rods 34 can be achieved, ensuring the coordinated release action of each limit point, the linkage structure of sliding block 1 512, sliding block 2 513 and connecting rod 59, so that the gear can smoothly achieve axial movement during rotation, avoiding transmission jam, the cooperation of spring 511 and rotating ring 510 can automatically drive the various components to reset after the fixed platform 4 is removed, simplifying the operation process, the contact design between the reset rod 54 and the inclined surface of the support block 39 converts the downward force into a reset force, realizing the automatic reset of the clamping block 38, the limiting effect of the limit block 51 and the stop block 52 on the limit block 53, ensuring the stable position of the support rod 34 in the fixed state, preventing accidental loosening, the uniform distribution of multiple groups of springs 511, so that the gear 2 57 is subjected to balanced force during the up and down movement, ensuring the stability of the reset action, the rotating ring 510 is rotatably connected to the gear 2 57, avoiding the spring 511 from twisting when the gear rotates, thereby extending the service life of the spring 511.

[0036] The working principle of the present invention is: when fixing, first thread the industrial robot base with the preset holes on the fixed platform 4 through bolts, and then put the fixed platform 4 into the placement cylinder 2, so that it moves down along the inner wall of the placement cylinder 2 due to gravity, and abuts against the trapezoidal block of the support block 39 during the downward movement, pushing the support block 39 to move down synchronously, and the connecting block of the support block 39 drives the ball group 37 and the shell 35 to move down, and the limit plates 36 at the side ends of the shell 35 slide along the limit grooves 32 on both sides of the moving groove 31 to limit the displacement of the shell 35. The downward movement of the shell 35 drives the clamping block 38 to move down at the same time. When the lower inclined surface of the trapezoidal block of the support block 39 contacts the arc surface at the top of the support rod 34, under the action of the inclined surface guide and the abutting force, the support block 39 moves toward the inside of the moving groove 31, and its connecting block pushes the ball group 37 rolls in the hollow cavity of the shell 35, and the ball group 37 drives the connecting block of the clamping block 38 to move toward the fixed platform 4, and the rectangular block of the clamping block 38 extends outward and finally abuts against the top of the fixed platform 4. At this time, the bottom end of the fixed platform 4 abuts against the trapezoidal block of the support block 39, and at the same time abuts against the arc surface of the top end of the support rod 34. With the clamping of the clamping block 38, the fixed platform 4 is restricted to the current position. In this state, the support rod 34 passes through the mounting hole 33, and the bottom end of the limiting block 53 at its side end is affixed to the top end of the limiting block 51, and the side end of the limiting block 53 is affixed to the side end of the stop block 52. The support rod 34 maintains a fixed height due to this limiting relationship. When it is necessary to take out the fixed platform 4 and the connected industrial robot, manually turn gear 2 57, and gear 2 57 engages with multiple sets of gears 1 55, with All gears 55 are driven to rotate synchronously, and gear 55 drives support rod 34 to rotate, so that limit block 53 rotates with support rod 34 to the gap between two sets of limit blocks 51, and the limit on support rod 34 is released. During this process, sliding block 1 512 at the bottom end of gear 1 55 slides along connecting groove 1 56, and sliding block 2 513 at the bottom end of gear 2 57 slides along connecting groove 2 58, so that during the rotation of the gear, the sliding block and connecting rod 59 will not rotate. Afterwards, the fixed platform 4 continues to move downward under the action of gravity, pushing the support block 39 and support rod 34 to move downward synchronously, and the support rod 34 drives gear 1 55 to move downward. Under the linkage action of sliding block and connecting rod 59, gear 2 57 moves downward synchronously, and the spring 511 at the bottom end of the placement cylinder 2 moves along with the gear due to the rotating ring 510. The second gear 57 moves downward and stretches, and the rotating ring 510 is rotatably connected with the second gear 57 to ensure that the spring 511 does not twist when the second gear 57 rotates. During the downward movement of the support rod 34, the inclined surface of the other side of the trapezoidal block of the support block 39 contacts the arc surface of the top end of the reset rod 54. Under the guidance of the inclined surface and the abutment force, the support block 39 moves toward the fixed platform 4 and resets. Its connecting block pushes the rolling ball group 37 to roll in the opposite direction, and the rolling ball group 37 drives the connecting block of the clamping block 38 to reset. The rectangular block of the clamping block 38 is separated from the top end of the fixed platform 4 and the clamping is released. The trapezoidal block of the support block 39 is inserted between the fixed platform 4 and the support rod 34. The top end of the fixed platform 4 has no clamping restriction and can be taken out of the placement tube 2. After the fixed platform 4 is taken out, the spring 511 returns to its original length, driving the rotating ring 510 to move upward.The rotating ring 510 pushes the gear 2 57 to move upward, and the gear 2 57 drives the gear 1 55 to move upward through the sliding block 2 513, the connecting rod 59 and the sliding block 1 512. The gear 1 55 drives the support rod 34 to move upward, and the top of the support rod 34 pushes the support block 39 to move upward. The support block 39 drives the shell 35 to move upward, and the limit plate 36 slides along the limit groove 32. The shell 35 drives the ball group 37 and the clamping block 38 to move upward until the limit block 53 moves above the limit block 51. At this time, manually rotate the gear 2 57 to drive the gear 1 55 to rotate the support rod 34 until the limit block 53 abuts against the side end of the stop block 52, and the gear 2 57 The fixing plate 36 on the side of the outer shell 35 is slidably connected with the limiting grooves 32 on both sides of the movable groove 31 to limit the displacement of the outer shell 35 during movement and ensure the clamping accuracy. The ball group 37 realizes the linkage between the support block 39 and the clamping block 38 through the ball transmission, so that the clamping action is coherent and the response is stable. The distance between the clamping block 38 and the support block 39 matches the height of the fixed table 4, which can accurately adapt to the clamping requirements of the fixed table 4. The inclined surface design of the trapezoidal block 39 cooperates with the arc surface at the top of the support rod 34, which can convert the downward movement force of the fixed platform 4 into the clamping force of the clamping block 38, realizing automatic clamping driven by gravity, and completing the fixation without an additional power source. Through the meshing design of gear 2 57 and multiple sets of gears 1 55, the synchronous rotation control of multiple support rods 34 can be realized to ensure the coordinated release of each limit point. The linkage structure of sliding block 1 512, sliding block 2 513 and connecting rod 59 enables the gear to achieve smooth axial movement during rotation to avoid transmission jamming. The cooperation of spring 511 and rotating ring 510 can be After the fixing table 4 is removed, it automatically resets all components, simplifying the operation process. The contact design between the reset rod 54 and the inclined surface of the support block 39 converts the downward force into a reset force, realizing the automatic reset of the clamping block 38. The limiting effect of the limit block 51 and the stop block 52 on the limit block 53 ensures the stable position of the support rod 34 in the fixed state and prevents accidental loosening. The even distribution of multiple sets of springs 511 ensures that the force on the gear 2 57 is balanced during the upward and downward movement, ensuring the stability of the reset action. The rotating ring 510 is connected to the rotation of the gear 2 57 to prevent the spring 511 from twisting during the gear rotation, extending the service life of the spring 511.

[0037] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. Auxiliary fixing devices for industrial robots, including: A workbench (1), characterized in that a placement cylinder (2) for accommodating an industrial robot base is fixedly provided on the workbench (1), a fixed table (4) fixedly connected to the industrial robot base is slidably inserted into the placement cylinder (2), a clamping member (3) for fixing the fixed table (4) is provided in the placement cylinder (2), and a releasing member (5) for releasing the clamping state of the fixed table (4) is provided in the placement cylinder (2); The clamping member (3) includes a movable groove (31) provided on the inner side of the placement tube (2), a mounting hole (33) is provided through the bottom end of the placement tube (2), a support rod (34) is inserted into the mounting hole (33), a housing (35) is slidably connected in the movable groove (31), a ball group (37) composed of multiple groups of balls abutting each other is slidably provided in the housing (35), a clamping block (38) is provided at the top end of the housing (35), one end of the clamping block (38) passes through the top end of the housing (35) and is fixedly connected to one group of balls in the ball group (37), a support block (39) is provided at the bottom end of the housing (35), one end of the support block (39) passes through the bottom end of the housing (35) and is fixedly connected to another group of balls in the ball group (37); Among them, after the fixed platform (4) connected to the base of the industrial robot is placed in the placement cylinder (2), it moves downward due to gravity and abuts against the support block (39), pushing it to move downward synchronously, thereby driving the shell (35), the ball group (37) and the clamping block (38) to move downward together in the movable groove (31). When the inclined surface of the bottom end of the support block (39) contacts the top end of the support rod (34), under the action of the inclined surface guidance and the abutting force, the support block (39) moves toward the inside of the movable groove (31), pushing the ball group (37) to roll in the shell (35), driving the clamping block (38) to move toward the fixed platform (4), and finally abutting against the top end of the fixed platform (4) to achieve clamping and fixation.

2. The auxiliary fixing device for an industrial robot according to claim 1, characterized in that: A limiting groove (32) is provided at the inner side end of the movable groove (31), and a limiting plate (36) is fixedly connected to the side end of the housing (35). The limiting plate (36) passes through the movable groove (31) and is slidably plugged into the limiting groove (32).

3. The auxiliary fixing device for an industrial robot according to claim 2, characterized in that: The release member (5) includes a limit block (51) fixedly connected to the inner wall of the mounting hole (33), a stop block (52) fixedly connected to the top end of the limit block (51), and a limit block (53) fixedly connected to the side end of the support rod (34). In an initial state, the support rod (34) passes through the mounting hole (33), so that the bottom end of the limit block (53) abuts against the top end of the limit block (51), and the side end of the limit block (53) abuts against the side end of the stop block (52), thereby limiting the support rod (34) to a current height.

4. The auxiliary fixing device for an industrial robot according to claim 3, characterized in that: The bottom end of the support rod (34) passes through the placement cylinder (2) and is fixedly connected to a gear 1 (55), and one end of the gear 1 (55) is meshedly connected to a gear 2 (57).

5. The auxiliary fixing device for an industrial robot according to claim 4, characterized in that: The bottom end of the placement tube (2) is fixedly connected to a spring (511), and the bottom end of the spring (511) is fixedly connected to a rotating ring (510). The rotating ring (510) is embedded in the top end of the second gear (57) and is rotationally connected to the second gear (57).

6. The auxiliary fixing device for an industrial robot according to claim 5, characterized in that: The bottom end of the gear 1 (55) is provided with a connecting groove 1 (56), and the bottom end of the gear 2 (57) is provided with a connecting groove 2 (58).

7. The auxiliary fixing device for an industrial robot according to claim 6, characterized in that: The first connecting groove (56) is slidably connected to the first sliding block (512), the second connecting groove (58) is slidably connected to the second sliding block (513), the bottom end of the first sliding block (512) is fixedly connected to the connecting rod (59), and one end of the connecting rod (59) is fixedly connected to the second sliding block (513).

8. The auxiliary fixing device for an industrial robot according to claim 7, characterized in that: A reset rod (54) is fixedly connected to the bottom end of the movable groove (31). When the height limit of the support rod (34) is released, the fixed platform (4) continues to move downward due to gravity. During the downward movement, the fixed platform (4) pushes the support block (39) to continue to move downward until the inclined surface of the support block (39) abuts against the reset rod (54). Under the guidance of the inclined surface and the abutting force, the support block (39) moves toward the fixed platform (4) and resets. Under the action of the rolling ball group (37), the clamping block (38) is reset synchronously, thereby releasing the clamping of the fixed platform (4).

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